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[0.011,0.728,"63b",null,null,"Kaolinitic clay, clay, clay sand, lignite","Evens Strait Fm.","PHANEROZOIC","MESOZOIC","CRETACEOUS AND JURASSIC","LOWER CRETACEOUS AND MIDDLE JURASSIC",null,null,null]
[0.026,1.116,"59g",null,null,"Limestone, dolostone, shale","Moose River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.278,3.154,"59h",null,null,"Limestone, dolostone, shale","Kwataboahegan Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.325,3.988,"58b",null,null,"Sandstone, dolostone, limestone","Stooping River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[1.309,8.394,"57d",null,null,"Sandstone, shale, dolostone, siltstone","Kenogami River Fm. (Upper Silurian to Lower Devonian)","PHANEROZOIC","PALEOZOIC","SILURIAN","UPPER SILURIAN",null,null,null]
[1.427,11.127,"56g",null,null,"Sandstone, shale, dolostone, siltstone","Attawapiskat Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[1.292,14.971,"56h",null,null,"Sandstone, shale, dolostone, siltstone","Ekwan River Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[7.697,37.756,"56i",null,null,"Sandstone, shale, dolostone, siltstone","Severn River Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[3.000,24.070,"55d",null,null,"Shale, limestone, dolostone, siltstone","Red Head Rapids Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[1.678,16.440,"55e",null,null,"Shale, limestone, dolostone, siltstone","Churchill River Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[1.524,16.666,"55f",null,null,"Shale, limestone, dolostone, siltstone","Bad Cache Rapids Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.060,"56g",null,null,"Sandstone, shale, dolostone, siltstone","Attawapiskat Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.188,7.480,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.295,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.014,1.016,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.157,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.027,1.504,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,3.546,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.164,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.243,6.534,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.629,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.320,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.357,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.135,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,1.329,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.178,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.217,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,0.696,"25","Sedimentary Rocks (Sutton Inlier)","dolostone, chert breccias, argillite, wacke, conglomerate, iron formation",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.019,1.088,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.164,"24","Sedimentary Rocks (Animikie Group)","wacke, shale, iron formation, limestone, minor volcanic rocks, conglomerate, taconite, aldal chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.260,"25","Sedimentary Rocks (Sutton Inlier)","dolostone, chert breccias, argillite, wacke, conglomerate, iron formation",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.114,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.423,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.372,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.311,"55f",null,null,"Shale, limestone, dolostone, siltstone","Bad Cache Rapids Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.004,0.369,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.144,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.081,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.215,"25","Sedimentary Rocks (Sutton Inlier)","dolostone, chert breccias, argillite, wacke, conglomerate, iron formation",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.342,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.290,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.059,2.947,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,2.794,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.352,7.861,"25","Sedimentary Rocks (Sutton Inlier)","dolostone, chert breccias, argillite, wacke, conglomerate, iron formation",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.055,1.796,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.371,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.686,15.700,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.536,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.146,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.038,1.842,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.245,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.210,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.179,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.150,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.212,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.070,2.951,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.362,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.293,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.054,1.326,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,4.968,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.894,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.641,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.540,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.052,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.179,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.011,0.395,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.925,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.232,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.214,7.666,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.133,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.314,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,1.049,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.126,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.397,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.347,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.051,2.662,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.251,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.382,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.013,2.628,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.252,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.008,0.600,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.010,0.517,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.711,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,1.047,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.174,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.597,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.170,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.322,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,2.693,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.377,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.332,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.052,2.309,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,1.618,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.140,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.183,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.387,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.670,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,2.718,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.224,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.753,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.036,1.198,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.265,10.955,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.749,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.525,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.338,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.563,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.485,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.031,0.984,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.298,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.035,0.834,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,0.606,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.469,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.399,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.023,1.617,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.959,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.627,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.374,8.735,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.222,13.291,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.144,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.750,13.269,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.276,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.381,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.203,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.534,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.151,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.186,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,1.160,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.204,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.380,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.113,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.490,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.133,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.292,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.236,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.306,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.562,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.352,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.203,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.133,2.286,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,1.503,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.904,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.415,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.543,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,1.293,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,2.225,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,1.928,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.270,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.996,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.469,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.369,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.161,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.252,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.054,2.116,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.191,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.211,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.180,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.593,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.533,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.173,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,0.646,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.429,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,1.422,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.067,3.513,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.197,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[1.379,26.281,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.405,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.800,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.256,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.243,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.059,2.155,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.126,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.050,3.759,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.842,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.117,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.369,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.065,1.910,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.453,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.237,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[1.621,32.011,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.223,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.036,2.345,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[1.364,26.142,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.158,2.286,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.300,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.139,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.467,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.285,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.390,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.122,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.125,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.151,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.138,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.052,3.853,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.174,4.179,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.042,1.332,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.030,2.751,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.010,0.449,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.287,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.155,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.247,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.295,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.130,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.435,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.410,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.045,2.363,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.241,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.386,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.120,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.121,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.682,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.425,"26a","Mafic intrusive rocks","Molson swarm (1884 Ma): diabase dikes; and Sutton Inlier diabase sills",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.039,1.230,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.378,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.530,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.930,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.209,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.201,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.624,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.809,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.231,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.244,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.414,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.338,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.456,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.030,0.979,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.219,4.143,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.433,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[2.087,14.393,"56h",null,null,"Sandstone, shale, dolostone, siltstone","Ekwan River Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.239,7.947,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,0.607,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.324,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.104,1.419,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.077,1.910,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.072,1.671,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.679,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.343,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.093,3.386,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.350,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.506,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.477,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.383,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.239,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.001,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.446,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.401,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.348,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.347,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.449,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.087,7.499,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.204,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.377,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.386,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.010,1.069,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.190,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.017,0.898,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.100,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.145,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.484,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.680,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.015,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.198,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.238,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.456,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.629,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.770,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[1.663,7.937,"56g",null,null,"Sandstone, shale, dolostone, siltstone","Attawapiskat Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.013,1.096,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.852,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.182,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.080,4.159,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.133,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.021,0.761,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.444,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.964,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.323,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,1.237,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.312,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.139,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.222,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.318,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.757,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.052,1.441,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.270,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.134,6.195,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.227,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.690,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.355,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.205,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.357,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.722,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.527,8.891,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.272,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.219,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.728,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.071,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.374,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.128,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.123,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.350,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.157,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.598,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.627,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.434,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.130,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.031,1.379,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.159,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.903,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.498,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.353,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,0.955,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.876,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.318,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.238,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.020,1.418,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.336,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.846,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.025,0.835,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.041,0.896,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.248,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.064,5.119,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.017,0.881,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.847,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.852,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,0.672,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.158,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.121,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.675,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.202,4.019,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.853,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.080,1.795,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.650,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.319,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.163,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.037,1.102,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.227,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,0.670,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.356,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.384,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.211,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.283,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.010,0.623,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,2.001,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.616,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.021,0.632,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.224,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.032,1.561,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.394,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.113,1.447,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,1.749,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.219,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.216,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.204,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.017,1.625,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.436,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.133,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.974,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.003,0.325,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,1.023,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.619,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.232,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.103,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.149,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,1.322,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.480,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.476,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.090,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.619,31.377,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.080,8.851,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.107,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.130,4.163,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.519,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.433,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.232,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.340,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.686,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.550,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.635,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,1.360,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.396,10.110,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.546,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.420,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,2.255,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.553,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.202,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.556,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.592,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.022,2.193,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.261,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.003,0.506,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.009,1.527,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.039,1.136,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.727,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.056,5.425,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.128,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.664,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.068,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.003,0.237,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.381,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.155,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.246,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.669,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.200,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.000,0.149,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.631,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.475,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.005,0.351,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.128,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.536,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.549,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.126,2.893,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.292,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.806,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.041,1.983,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.391,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.255,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.218,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.221,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.213,4.323,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.596,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.290,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.003,0.192,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.007,0.892,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.158,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.177,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.122,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.416,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.608,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.295,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.004,0.910,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.850,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.560,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.438,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.143,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.160,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.061,5.716,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.245,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[3.798,13.900,"57d",null,null,"Sandstone, shale, dolostone, siltstone","Kenogami River Fm. (Upper Silurian to Lower Devonian)","PHANEROZOIC","PALEOZOIC","SILURIAN","UPPER SILURIAN",null,null,null]
[0.002,0.587,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.149,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.161,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,1.980,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.899,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.025,1.761,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.058,1.380,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.066,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.358,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.311,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.001,0.219,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,1.180,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.230,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.258,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.220,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.253,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.238,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.166,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.208,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.449,13.986,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.200,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.078,1.796,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.163,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,1.234,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.337,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.426,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.138,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.054,1.663,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.656,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.206,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.163,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.153,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.447,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.112,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.631,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.230,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.187,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.025,1.434,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.653,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.159,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.244,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.005,0.581,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.335,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.823,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.137,5.776,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.196,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.065,1.274,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.752,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.123,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.273,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.049,1.504,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.093,3.899,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,0.939,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.040,1.922,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.659,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.083,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.278,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.951,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,1.260,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.651,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,1.304,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,2.519,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.250,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.200,5.037,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.437,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.258,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.605,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.795,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.030,0.921,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.821,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.727,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.352,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.432,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.197,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.346,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.512,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.281,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.780,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.282,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,1.105,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.568,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.101,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,3.314,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.377,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,1.797,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.003,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.133,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.159,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.533,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.037,0.921,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.199,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.259,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.587,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.195,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.171,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.693,11.150,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.319,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.120,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.142,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.328,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.120,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.162,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.837,21.359,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.515,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.202,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.490,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.330,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.480,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.023,1.192,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.704,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.089,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.166,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.254,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.166,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.128,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.314,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.148,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,0.872,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.215,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.212,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.650,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.348,6.520,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.199,8.121,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[1.083,16.641,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.298,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.251,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.068,2.797,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.036,2.172,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.054,1.804,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.693,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.137,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.046,2.454,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,0.490,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.186,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.792,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.293,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.116,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.382,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.321,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.139,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.941,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.013,0.851,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.195,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.981,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.248,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.565,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.158,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.186,4.678,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.112,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.380,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.426,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.126,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.231,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.047,1.348,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,0.522,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.282,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.066,2.512,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.269,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,1.582,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.009,1.126,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.459,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.136,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.166,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.660,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.152,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.604,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.171,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.142,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.252,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.195,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.194,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.205,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.173,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.041,1.427,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.240,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.411,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.118,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.220,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,1.037,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.784,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.058,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.283,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.436,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.268,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.025,0.935,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.254,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.130,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.875,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.170,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.761,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.469,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.234,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.125,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.212,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.317,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.191,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.201,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.154,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.284,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.006,0.766,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.150,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.355,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,1.148,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.390,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.165,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.019,0.845,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.521,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.001,0.182,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.190,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.238,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.160,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.130,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.535,16.853,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.148,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.787,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.237,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.017,0.774,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.527,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.311,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.155,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.325,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.030,1.632,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.029,0.951,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.674,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.605,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.275,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.112,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.495,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.165,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.133,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.047,1.173,"55e",null,null,"Shale, limestone, dolostone, siltstone","Churchill River Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.001,0.150,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,2.040,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.725,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.284,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[1.442,11.939,"58b",null,null,"Sandstone, dolostone, limestone","Stooping River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.001,0.245,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.059,1.865,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.265,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.465,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.348,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.705,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.478,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.073,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.118,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.310,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.020,1.258,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.072,3.574,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.062,1.915,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.575,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.223,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.375,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.160,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.140,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.297,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.319,9.342,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.565,"1b","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","mafic metavolcanic rocks, marble, quartz arenite, iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.012,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.168,5.980,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.111,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.119,4.597,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.466,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.675,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.426,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.205,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.328,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.030,1.196,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.150,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.033,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.131,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.096,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.235,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,0.783,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.157,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.108,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.218,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.529,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.222,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.033,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.151,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.067,1.952,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.366,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.108,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.611,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.314,20.641,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.203,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.467,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.460,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.357,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.260,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[1.408,13.011,"59h",null,null,"Limestone, dolostone, shale","Kwataboahegan Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.128,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.022,0.840,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.343,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.369,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.223,5.191,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.262,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.267,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.530,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.147,4.719,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.217,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.283,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.487,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.123,2.666,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.044,2.122,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.415,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.278,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.177,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.124,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.928,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.679,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.105,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.226,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.053,1.508,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.231,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.674,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.266,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.170,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.308,"55e",null,null,"Shale, limestone, dolostone, siltstone","Churchill River Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.002,0.327,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.191,5.126,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.230,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.033,1.396,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.621,23.747,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.072,1.484,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.554,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.022,1.062,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.024,0.760,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.120,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.132,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.324,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.423,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.209,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.314,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.317,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.096,4.620,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.263,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.173,3.785,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"55e",null,null,"Shale, limestone, dolostone, siltstone","Churchill River Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.008,0.385,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.291,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.049,1.412,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.192,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.130,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.274,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.699,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.264,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.117,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.454,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.035,0.839,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.100,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.086,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.511,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.147,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.839,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.187,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.410,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.129,11.830,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.023,1.573,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.134,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.072,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.052,1.913,"55e",null,null,"Shale, limestone, dolostone, siltstone","Churchill River Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.017,0.641,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.458,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.039,2.192,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.064,6.660,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.251,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.407,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.231,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.318,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,0.614,"57d",null,null,"Sandstone, shale, dolostone, siltstone","Kenogami River Fm. (Upper Silurian to Lower Devonian)","PHANEROZOIC","PALEOZOIC","SILURIAN","UPPER SILURIAN",null,null,null]
[0.007,0.380,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.785,12.140,"59g",null,null,"Limestone, dolostone, shale","Moose River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.041,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.480,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.031,3.171,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.020,1.885,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.824,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.296,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.135,8.384,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.544,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,1.127,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.630,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.116,4.469,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.832,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.028,0.993,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.627,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.178,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.001,0.526,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.448,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.495,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.732,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,1.908,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.544,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.802,18.336,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.134,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.197,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.325,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.217,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.144,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.131,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.369,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.127,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.386,7.277,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.462,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.094,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.175,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.128,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.116,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.115,2.627,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.539,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.157,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.418,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.189,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.116,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.031,1.154,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.189,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.554,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.160,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.179,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.094,6.199,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.283,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.212,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.087,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.156,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.265,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.149,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.046,2.338,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.074,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.093,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.010,0.631,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.303,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.074,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.132,4.896,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.174,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.122,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.560,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.416,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.147,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.123,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.730,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.501,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.271,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.067,2.710,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.606,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.114,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.329,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.486,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.226,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.177,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.509,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.478,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.089,1.994,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.175,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.463,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.138,16.199,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.203,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.211,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.163,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.225,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[1.275,9.772,"59e",null,null,"Limestone, dolostone, shale","Williams Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.011,1.404,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.114,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.912,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.086,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.471,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.119,1.968,"57d",null,null,"Sandstone, shale, dolostone, siltstone","Kenogami River Fm. (Upper Silurian to Lower Devonian)","PHANEROZOIC","PALEOZOIC","SILURIAN","UPPER SILURIAN",null,null,null]
[0.000,0.065,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.101,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.238,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.474,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.047,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.264,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,1.939,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.019,1.245,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.178,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.022,2.681,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.093,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.032,1.088,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.027,0.958,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.455,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.471,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.200,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.033,2.249,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.643,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.078,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.164,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.772,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.075,1.864,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.384,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.151,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.233,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.343,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,1.430,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.317,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.012,1.726,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.485,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.072,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.151,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,0.500,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.283,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.027,1.561,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.616,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.199,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.151,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.143,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.186,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.087,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.369,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.173,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.478,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.078,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.297,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.271,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.624,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.191,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.011,1.325,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.215,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.733,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,3.635,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.955,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.154,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.118,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.030,4.900,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.479,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.237,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.207,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.534,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.316,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.326,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.481,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.692,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.177,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.210,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[1.328,57.938,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.283,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.003,0.609,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.123,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.443,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.074,1.296,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.116,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.465,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.057,2.989,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.169,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,0.935,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,0.861,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,1.183,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.079,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.132,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,1.344,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.332,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.298,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.326,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.103,1.639,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.252,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.332,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.171,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.042,2.200,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.203,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.541,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.112,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.090,3.128,"58b",null,null,"Sandstone, dolostone, limestone","Stooping River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.001,0.183,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.026,1.980,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.774,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.161,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.179,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.321,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.130,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.666,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.078,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.354,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.210,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.741,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.541,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.209,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.407,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.298,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.754,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.005,0.370,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.131,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.236,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.148,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.701,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.166,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.034,1.050,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.149,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.175,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.190,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.191,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.293,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.303,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.146,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.124,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.029,3.545,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.205,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.178,6.840,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.301,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.318,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.143,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.463,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.290,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.277,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.133,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.295,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.574,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.511,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.349,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.120,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,1.118,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.102,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,1.196,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.387,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.278,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.466,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.528,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.165,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.047,6.319,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.331,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.159,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.007,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,1.210,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.003,0.315,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.211,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.510,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.296,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.880,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.000,0.034,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.268,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.001,0.233,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.084,2.868,"58c",null,null,"Sandstone, dolostone, limestone","Sextant Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.002,0.301,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,0.640,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,1.362,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.028,2.237,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.114,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.177,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.270,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.033,3.603,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.101,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.276,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.058,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.572,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.196,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.420,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.361,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.213,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.058,2.800,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.139,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.152,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.341,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,1.275,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.301,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.096,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.129,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.387,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.286,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.125,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.498,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.093,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.248,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,0.993,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.330,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.318,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.017,0.854,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.270,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.164,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.168,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.050,0.978,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.131,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.388,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.147,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.285,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.582,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.075,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.220,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.049,1.341,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.148,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.961,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.432,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.060,2.163,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.123,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.131,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.705,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.474,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.040,1.621,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.675,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.121,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.083,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.251,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.005,1.031,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.320,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.582,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.125,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.214,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.387,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.214,"59g",null,null,"Limestone, dolostone, shale","Moose River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.013,1.670,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.697,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.702,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.276,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.213,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.161,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.001,0.125,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.319,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.139,8.019,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.293,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.358,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.123,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.059,3.336,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.506,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.590,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.519,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.152,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.291,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.099,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.147,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.218,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.172,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.331,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.345,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.370,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.157,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.120,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.265,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.082,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.288,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.481,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.001,0.237,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.209,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.276,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.062,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.403,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.164,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.132,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.277,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.183,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.353,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.206,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.416,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.242,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.482,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.167,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.035,2.237,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.157,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.030,1.644,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,0.641,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.250,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.140,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.461,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.112,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,1.153,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.225,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.214,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.052,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.199,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.168,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.155,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.454,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.092,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.388,8.190,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.125,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.087,3.331,"60b",null,null,"Shale","Long Rapids Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","UPPER DEVONIAN",null,null,null]
[0.001,0.143,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.144,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,1.342,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.022,3.108,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.212,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.279,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.241,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.260,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.644,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.177,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.723,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.434,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.331,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.477,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,1.160,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.013,1.013,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.285,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.258,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.216,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.256,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.028,2.115,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.254,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.604,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.117,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.347,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.415,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.211,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.216,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.279,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.105,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.249,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.254,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.476,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.212,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,2.798,"59f",null,null,"Limestone, dolostone, shale","Murray Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.157,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.179,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.242,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.680,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.076,3.232,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.188,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[1.002,5.795,"63a",null,null,"Kaolinitic clay, clay, clay sand, lignite","Mattagami Fm, :Mistuskwia Beds","PHANEROZOIC","MESOZOIC","CRETACEOUS AND JURASSIC","LOWER CRETACEOUS AND MIDDLE JURASSIC",null,null,null]
[0.006,0.475,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.252,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.880,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.667,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.123,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.424,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.083,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.240,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.696,"59h",null,null,"Limestone, dolostone, shale","Kwataboahegan Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.092,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.894,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,3.944,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.129,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.400,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.271,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.128,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.993,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.685,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.325,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.197,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.122,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.061,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.101,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.139,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.231,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.040,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.027,1.625,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[1.151,48.079,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.567,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.955,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.181,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.254,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.136,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.134,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.132,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.785,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.197,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.604,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.311,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.171,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.137,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.005,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,1.718,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.257,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.050,4.779,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.383,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.050,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.403,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,1.071,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.206,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.202,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.264,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.294,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.025,1.549,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.314,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.158,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.149,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.322,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.604,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.015,1.263,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.237,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.571,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,1.029,"56h",null,null,"Sandstone, shale, dolostone, siltstone","Ekwan River Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.095,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.020,0.865,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.264,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.187,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.051,1.760,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.387,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.093,2.590,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.921,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.737,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.231,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.337,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.039,1.413,"56i",null,null,"Sandstone, shale, dolostone, siltstone","Severn River Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.027,0.958,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.229,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.109,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.150,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.694,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.023,1.142,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,1.246,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.374,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.418,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.169,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.037,2.455,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.160,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.064,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.192,"7d","Metasedimentary rocks","conglomerate and arenite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.328,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.447,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.246,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.183,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.130,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.443,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.934,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,0.986,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.054,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.028,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.173,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,0.715,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,0.909,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.258,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.336,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.172,8.727,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.236,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.293,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.248,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.229,5.192,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.344,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,1.569,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.346,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.577,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.216,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.268,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.817,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.373,7.241,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.698,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.919,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.203,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.010,1.163,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.085,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.166,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.527,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.145,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.389,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.093,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.140,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.645,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.136,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.046,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.331,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.343,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.223,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.692,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,1.230,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.385,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.745,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.500,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.125,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.190,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.424,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.504,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.199,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.128,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.395,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.301,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.193,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.308,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.224,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.651,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.073,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.094,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.086,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.646,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.310,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.278,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.239,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.816,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.101,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.334,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.042,1.940,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.601,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,1.002,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.266,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.164,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,1.102,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.500,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.251,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.671,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.319,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.188,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.133,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.274,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.276,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.672,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.044,2.553,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.109,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.795,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.676,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.144,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.265,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.150,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.448,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.167,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.155,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.179,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.349,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.232,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.468,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.006,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.410,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.015,0.625,"58b",null,null,"Sandstone, dolostone, limestone","Stooping River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.001,0.137,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.184,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,0.370,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.221,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.147,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.023,3.543,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.664,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.824,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.064,2.202,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.309,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.193,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.241,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.609,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.411,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.141,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.228,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.137,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.015,1.077,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.295,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.227,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,1.780,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.213,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.120,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.320,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.324,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,1.528,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.387,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.260,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.113,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.103,2.553,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.063,1.959,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.418,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.015,0.853,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.155,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"23c","Mafic and related intrusive rocks","Kenora-Fort Frances swarm: diabase dikes",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.116,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.141,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.148,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.609,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.629,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.468,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.022,2.121,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.048,2.962,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.579,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.143,"60b",null,null,"Shale","Long Rapids Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","UPPER DEVONIAN",null,null,null]
[0.001,0.180,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.606,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.196,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,1.132,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.029,2.084,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.192,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.096,2.704,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.114,"59e",null,null,"Limestone, dolostone, shale","Williams Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.017,0.792,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.464,"59h",null,null,"Limestone, dolostone, shale","Kwataboahegan Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.102,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.186,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.182,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.390,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.143,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.133,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.024,1.510,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.155,"60b",null,null,"Shale","Long Rapids Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","UPPER DEVONIAN",null,null,null]
[0.000,0.122,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.184,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.511,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.783,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.367,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.174,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.023,1.690,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.703,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.358,"60b",null,null,"Shale","Long Rapids Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","UPPER DEVONIAN",null,null,null]
[0.018,0.822,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.334,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.252,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.121,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.230,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.284,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.388,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.752,11.614,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.156,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.267,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.170,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.141,"59e",null,null,"Limestone, dolostone, shale","Williams Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.006,0.940,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.184,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.090,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.001,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.134,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.291,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.188,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.049,1.166,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.143,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.114,"59e",null,null,"Limestone, dolostone, shale","Williams Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.009,0.919,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.645,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.076,6.046,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.179,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.139,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.331,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.352,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.223,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.122,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.878,10.884,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.157,"58b",null,null,"Sandstone, dolostone, limestone","Stooping River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.001,0.105,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.151,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.373,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.193,6.350,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.274,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.015,0.912,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.311,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.108,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.224,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.137,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.217,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.400,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"58b",null,null,"Sandstone, dolostone, limestone","Stooping River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.000,0.068,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.288,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.267,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.054,3.484,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.547,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.305,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.417,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.039,1.963,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.367,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,2.506,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.196,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.125,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.272,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.123,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.921,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.125,"59e",null,null,"Limestone, dolostone, shale","Williams Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.001,0.140,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.321,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.296,21.383,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.336,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.404,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.291,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.063,1.350,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.298,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.380,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.017,1.848,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.036,2.468,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,1.156,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.152,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.276,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.411,"58b",null,null,"Sandstone, dolostone, limestone","Stooping River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.000,0.101,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.417,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.153,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.235,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.693,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.246,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.025,2.027,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.293,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.141,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.219,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.427,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.143,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.342,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.132,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.476,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.242,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.149,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.148,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.207,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.090,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.018,0.865,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.611,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.298,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.112,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.460,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.643,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.118,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.017,2.245,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.119,3.636,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.538,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,0.601,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.173,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.919,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.048,1.537,"60b",null,null,"Shale","Long Rapids Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","UPPER DEVONIAN",null,null,null]
[0.002,0.220,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.252,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.093,3.618,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.145,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.151,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.126,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.072,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.168,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.066,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.106,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.878,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.273,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[1.419,23.694,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.093,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.002,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.130,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.063,2.655,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.140,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.201,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.255,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.113,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.340,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.057,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.341,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.100,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.198,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.182,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.453,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.278,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.134,"59f",null,null,"Limestone, dolostone, shale","Murray Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.001,0.134,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,2.775,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.156,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.086,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"59f",null,null,"Limestone, dolostone, shale","Murray Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.047,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.084,8.509,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.186,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.191,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.179,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.432,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.082,3.432,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.170,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.460,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.393,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.176,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.299,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.134,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.123,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.144,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.462,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.427,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.070,2.134,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.125,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.193,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.251,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.888,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.234,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.297,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.334,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.097,4.726,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.670,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.310,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.116,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.401,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.295,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.561,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.296,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.063,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.228,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.393,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.185,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.146,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.118,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.300,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.387,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.190,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.181,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.129,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.512,7.980,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.061,2.793,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.030,0.762,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.091,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[1.078,12.735,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[2.827,60.586,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.474,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.245,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.304,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.469,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.259,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.263,"38","Carbonatite - alkalic intrusive suite (450 to 600 Ma)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic intrusions",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.148,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.372,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.177,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.335,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.117,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.285,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.163,5.166,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.007,0.488,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.121,"38","Carbonatite - alkalic intrusive suite (450 to 600 Ma)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic intrusions",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.142,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.100,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.268,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.021,2.236,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.148,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.059,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.179,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.069,3.372,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.277,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.375,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.757,"59f",null,null,"Limestone, dolostone, shale","Murray Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.088,"38","Carbonatite - alkalic intrusive suite (450 to 600 Ma)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic intrusions",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.210,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.171,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.281,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.063,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.208,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.738,"59g",null,null,"Limestone, dolostone, shale","Moose River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.003,0.314,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.354,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.629,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.433,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.518,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.111,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.242,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.053,2.769,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.029,1.557,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.214,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.186,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.712,"59h",null,null,"Limestone, dolostone, shale","Kwataboahegan Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.225,9.783,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.308,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.189,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.023,1.374,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.038,2.434,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.091,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.505,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.946,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.309,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.163,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.160,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.195,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.147,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.024,1.106,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.431,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.037,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.737,"58b",null,null,"Sandstone, dolostone, limestone","Stooping River Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.002,0.556,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.104,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,4.094,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.232,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.364,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.132,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,1.318,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.890,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.149,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.143,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.091,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.235,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.100,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.011,0.508,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.123,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.097,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.795,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.151,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,1.640,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.048,1.753,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.142,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.476,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.301,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.068,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.153,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.280,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.868,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.064,3.204,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.163,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,1.107,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.097,9.519,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.045,1.848,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.179,5.430,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.154,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.380,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.209,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.078,"59e",null,null,"Limestone, dolostone, shale","Williams Island Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.001,0.162,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.020,1.311,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.288,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.141,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.126,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.159,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.233,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.144,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,0.859,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.120,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.202,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.048,2.292,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10b","Mafic and ultramafic rocks","anorthosite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.407,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.354,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.265,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.130,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.002,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.118,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.111,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.416,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.552,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.579,"57d",null,null,"Sandstone, shale, dolostone, siltstone","Kenogami River Fm. (Upper Silurian to Lower Devonian)","PHANEROZOIC","PALEOZOIC","SILURIAN","UPPER SILURIAN",null,null,null]
[0.001,0.159,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.577,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.054,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.155,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.244,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.097,1.342,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.099,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,0.647,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.635,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.134,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.038,2.402,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.209,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.457,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.481,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.784,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.236,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.035,2.725,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.768,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,2.000,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.489,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.208,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.141,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.311,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,1.688,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.136,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.403,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.106,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.048,1.049,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.049,2.546,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.128,"16c","Hornblendite - nepheline syenite suite","syenite, nepheline and/or foid-bearing syenite",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.001,0.159,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.146,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.250,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.154,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.245,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.214,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.090,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.219,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.021,1.386,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.276,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.205,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.085,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.095,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.057,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.001,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.246,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.236,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.334,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.169,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.199,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.758,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.158,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.458,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.190,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.245,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.383,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.072,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.220,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.157,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.133,"63a",null,null,"Kaolinitic clay, clay, clay sand, lignite","Mattagami Fm, :Mistuskwia Beds","PHANEROZOIC","MESOZOIC","CRETACEOUS AND JURASSIC","LOWER CRETACEOUS AND MIDDLE JURASSIC",null,null,null]
[0.001,0.198,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.233,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.014,2.538,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.218,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.786,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.440,27.519,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.099,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.235,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,0.521,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.082,8.837,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,1.107,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.146,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.079,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.262,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.226,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.250,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.991,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.469,"16c","Hornblendite - nepheline syenite suite","syenite, nepheline and/or foid-bearing syenite",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.003,0.746,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.143,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.269,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.666,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.755,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.387,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.298,4.611,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.469,"7d","Metasedimentary rocks","conglomerate and arenite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.480,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.311,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.475,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.641,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.021,2.920,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.595,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.142,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.361,"30a","Felsic intrusive rocks","Grantic, alkali granite, granodiorite, quartz feldspar porphyry; minor related volcanic rocks (1.4 to 1.5 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.101,8.325,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.026,1.951,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.127,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.382,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.219,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.016,1.395,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.107,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,1.589,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.274,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.183,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.274,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.116,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.303,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,2.718,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.360,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.978,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.155,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.876,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.251,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.046,1.213,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.528,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.269,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.244,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.151,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.220,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.121,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,2.549,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.379,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.459,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.104,2.741,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.860,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.326,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.174,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.525,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.636,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.135,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.212,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.152,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.022,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.262,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.285,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.413,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.100,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.136,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,0.481,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.273,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.322,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.608,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.334,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.281,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.492,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,1.165,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.232,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.309,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.032,1.471,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,3.150,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.201,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.529,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.744,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.133,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.404,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.331,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.205,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.402,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.264,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.392,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.249,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.210,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.307,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.406,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.178,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.927,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.390,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.157,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.216,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.157,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,0.598,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.088,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.168,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.164,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.369,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.063,1.465,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.215,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.041,2.995,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.550,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.558,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.146,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.355,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.138,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.203,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.210,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.233,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.256,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.227,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.117,3.027,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.246,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.191,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.134,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.208,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.774,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.065,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.490,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.267,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.308,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.117,2.511,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.016,1.328,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.156,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.935,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.879,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.477,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.206,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.202,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.044,5.345,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.022,2.005,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,4.017,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.165,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.079,3.384,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.179,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.853,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.317,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.203,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.647,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.573,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.209,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.101,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.361,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.183,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.267,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.404,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.035,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.108,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,0.542,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.727,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.008,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.338,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.337,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,0.687,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.314,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.215,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.570,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.054,1.390,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.254,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.247,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.221,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.114,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.181,7.882,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.400,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.157,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.265,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.020,1.541,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.510,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.500,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.207,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.214,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.780,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.117,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.513,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.554,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.030,2.300,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.153,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.226,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.183,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.545,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.094,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.410,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.257,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.103,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.562,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.007,0.969,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.336,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.032,1.292,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,1.079,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.142,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.267,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.039,2.215,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.029,1.310,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.219,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,2.809,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.265,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.173,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.041,2.286,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.081,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.654,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.236,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.171,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.271,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.130,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.090,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.640,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.068,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.953,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.067,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.033,0.922,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.686,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.318,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.139,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.086,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.300,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.245,3.482,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,1.270,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.139,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.042,3.158,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.186,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.146,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.038,1.132,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.417,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.866,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.130,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.242,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,1.259,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.405,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.040,0.817,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.154,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.496,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.553,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.400,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.123,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,2.019,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.196,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.158,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.128,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.435,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.304,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.083,8.730,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.348,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.164,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,1.739,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.178,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.162,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.250,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.242,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.231,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.368,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.185,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.401,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.632,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.096,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.345,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.382,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.291,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.142,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.273,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.065,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.246,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.119,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.214,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.365,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.131,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.424,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.178,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.140,2.964,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.322,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.192,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.099,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.779,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.177,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.094,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,0.803,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.520,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.090,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.292,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.735,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.503,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,2.332,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.211,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.442,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.540,11.406,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.305,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.029,1.833,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.125,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.452,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.157,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.550,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.011,1.070,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.462,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.247,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.288,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.295,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.195,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.247,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.241,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.616,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.356,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.009,1.190,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.161,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.221,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.447,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.133,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.317,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.152,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.478,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.301,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.981,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.278,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,0.593,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.229,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.227,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.330,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,2.379,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.085,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.633,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.113,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.347,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.032,3.825,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.022,3.992,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.367,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.351,11.454,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.384,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.186,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.582,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.200,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.183,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.176,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.508,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.320,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.276,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.300,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.487,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.711,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.297,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.024,1.373,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.319,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.213,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.056,1.300,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.150,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.114,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.258,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.182,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.046,1.812,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.143,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.426,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.333,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.234,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.300,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.027,1.967,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.782,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.617,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.119,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.190,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.551,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.288,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.192,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.018,0.967,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.175,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.182,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.064,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.340,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.378,9.533,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.114,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.351,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.295,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.207,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.328,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.301,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.159,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,1.037,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,0.952,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.195,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.172,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.157,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.210,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.309,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.225,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.267,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.020,2.583,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.274,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.350,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.342,15.026,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.495,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.142,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.107,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.694,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.082,7.354,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.245,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.436,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.131,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.187,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.070,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.317,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.019,1.182,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.277,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.293,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.317,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,1.488,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.397,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.160,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.387,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.096,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.290,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.810,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.669,"7d","Metasedimentary rocks","conglomerate and arenite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.831,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.108,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.188,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.148,12.693,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.100,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.202,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.167,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.700,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.051,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.334,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.129,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.192,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.396,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.408,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.156,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.204,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.138,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.094,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.352,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.257,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.075,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.091,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.231,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.158,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.007,1.211,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.145,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.970,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.517,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,0.724,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.025,1.735,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.217,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.105,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.190,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.159,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.071,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.052,1.347,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.049,2.275,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.013,1.312,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.322,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.568,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.084,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.181,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.324,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,0.495,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.269,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.262,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.173,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.025,1.519,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.106,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.377,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.101,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.696,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.187,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.151,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.379,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.172,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,0.992,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.172,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,2.073,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.227,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.208,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.337,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.483,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.508,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.463,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.106,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.604,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.107,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.621,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.448,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.011,1.501,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.124,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.003,0.560,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.399,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.032,1.703,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.982,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.144,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.175,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.171,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.406,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.024,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.313,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.377,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.564,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.041,2.118,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.143,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.063,4.238,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.307,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.572,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.066,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.043,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.045,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.068,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.119,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.328,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.576,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.560,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.289,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.025,1.048,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.145,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.344,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.488,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.285,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.150,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.117,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.402,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.055,2.649,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.381,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.743,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.858,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.171,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.196,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.205,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.639,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.113,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.068,1.380,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.174,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.259,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.444,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.165,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.364,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.038,1.287,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.132,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.325,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.290,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.199,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.091,9.626,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.110,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.385,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.283,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.342,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.192,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.287,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.656,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.155,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.203,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.046,2.623,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.171,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.381,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.171,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.815,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.561,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.142,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.020,1.790,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.019,0.828,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.955,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.235,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.606,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.239,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.052,2.757,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.006,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.051,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.006,0.531,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.937,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.358,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.423,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.145,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.034,3.936,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.285,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.024,1.050,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.202,"27","Carbonatite - alkalic intrusive suite (ca. 1.9 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultimafic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.336,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.121,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.104,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.412,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.489,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.339,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.363,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.327,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.265,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.116,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.302,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.018,0.642,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.169,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.113,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.242,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.343,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.351,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.286,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.030,1.771,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.207,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.219,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.109,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.155,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.147,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.228,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.022,1.079,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.202,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.256,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.025,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.260,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.247,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.001,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.331,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.159,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.356,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.063,3.862,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.375,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.273,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"27","Carbonatite - alkalic intrusive suite (ca. 1.9 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultimafic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.212,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.750,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,1.430,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.676,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.242,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.058,3.871,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.312,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.426,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,1.410,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.169,7.670,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.113,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.166,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.686,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.103,3.771,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.140,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.608,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.264,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.567,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.127,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.031,2.026,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.033,1.549,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.307,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.518,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.121,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.938,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.420,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.107,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.499,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.046,1.899,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.128,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.294,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.911,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.366,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.385,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.511,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.171,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.361,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.318,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.622,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.131,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.018,0.951,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.251,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.000,0.094,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.014,1.345,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.028,0.864,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.710,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.404,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.356,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.271,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.765,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.001,0.385,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.445,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.594,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.054,2.685,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.139,2.579,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.394,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.177,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.655,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.454,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.242,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.115,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.387,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.615,15.973,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.553,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.094,2.794,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.225,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.155,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.153,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.011,0.711,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.236,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.423,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,1.232,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.106,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.434,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.584,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.352,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.020,2.488,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.129,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.131,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.788,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.508,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,0.695,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.797,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.267,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.098,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.254,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.472,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.141,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.118,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.209,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.592,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.029,3.354,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.067,3.270,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.399,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.067,2.046,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.014,1.067,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.134,2.238,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.672,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.150,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.013,0.745,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.308,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.003,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.096,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.186,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.171,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.016,0.972,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.350,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.760,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.340,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.142,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.392,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.377,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.183,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.125,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.212,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.566,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.305,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.274,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.178,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.225,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.255,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.114,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.542,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.301,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.271,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.155,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.481,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.272,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.163,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.384,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.034,5.203,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.149,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.008,0.562,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.260,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.587,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.586,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.239,7.265,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.034,1.613,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.133,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.175,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.639,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.725,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.652,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.225,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.737,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.227,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.201,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.124,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.157,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.162,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.636,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.224,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.547,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.036,1.822,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.243,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.021,0.855,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.307,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.293,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.298,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.317,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.399,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.551,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.223,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.143,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.341,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.254,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.103,10.349,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.375,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.396,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.239,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.948,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.100,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.725,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.246,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.016,0.622,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.334,20.438,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.522,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.324,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.650,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.425,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.177,4.586,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.442,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.132,2.959,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.247,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.164,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.168,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.191,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.528,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.001,0.254,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.214,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.172,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.130,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.147,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.259,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.097,2.814,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.154,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.914,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.050,2.002,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.211,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.466,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.178,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.208,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.069,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.034,3.441,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.552,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.050,3.407,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.191,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.112,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.232,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.124,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.355,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.280,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.202,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.759,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.015,1.210,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.042,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.082,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.035,0.873,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.032,2.837,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.558,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.123,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.704,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.096,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.046,4.670,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.191,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.009,0.397,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.277,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.146,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.208,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.512,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.408,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.283,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.195,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.878,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.096,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.033,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.180,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.407,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.156,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.089,3.355,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,2.070,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.144,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.307,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.344,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.121,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.365,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.318,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.020,4.420,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.191,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.194,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.257,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.195,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.132,13.777,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.307,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.292,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.314,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.064,10.564,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,1.647,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.356,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.070,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.439,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.385,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.150,5.385,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.055,1.182,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.223,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.182,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,0.501,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.437,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.129,20.404,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.016,0.801,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.128,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.103,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.450,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,0.764,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.386,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.295,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.193,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.264,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.163,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.000,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.105,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.378,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.481,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.210,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,0.708,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.240,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.019,0.737,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.295,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.123,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.243,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.134,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.321,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.206,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.131,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.061,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.232,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.581,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.035,2.455,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.112,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.251,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.402,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.303,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.327,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.271,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.229,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.454,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.078,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.029,1.929,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.136,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.170,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.181,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.260,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.005,0.399,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.132,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.629,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.070,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.208,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.127,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.185,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.182,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.229,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.189,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.705,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.485,9.615,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.112,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.524,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.086,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.083,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.141,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.014,1.004,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.269,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.628,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.153,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.173,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.262,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.194,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.134,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.163,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.183,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.157,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.153,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.121,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.202,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.186,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.096,5.401,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.222,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.283,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.134,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.327,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.134,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.147,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.129,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.251,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.264,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.203,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.342,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.194,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.215,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.222,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.167,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.103,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.262,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.347,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.217,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.450,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.232,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.191,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.280,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,1.000,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.972,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.140,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.267,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.597,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.021,2.424,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.671,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.298,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.138,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.086,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.125,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.256,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.509,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.112,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.110,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.172,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.124,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,1.155,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.094,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.682,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.499,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.464,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.150,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.024,2.679,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.018,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.213,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.125,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.068,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,0.794,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.123,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.205,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.128,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.107,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.324,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.930,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.346,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.207,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.219,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.482,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.112,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.253,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.135,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.283,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,1.062,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.122,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.428,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.120,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.099,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.069,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.130,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.777,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.106,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.204,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.349,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.132,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.274,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.114,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.103,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.100,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.302,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.124,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.128,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.108,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.093,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.518,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.226,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,0.705,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.144,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.118,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.192,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.026,1.578,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.162,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.202,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.227,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.145,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.534,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[1.691,33.425,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.179,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.200,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.192,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.152,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.155,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.129,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.185,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.168,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.433,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.501,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.544,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.150,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.287,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.055,3.826,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.050,1.249,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.461,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.264,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.203,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.445,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.237,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.116,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.047,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,0.974,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.147,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.387,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.052,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.199,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.182,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.306,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.253,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,2.073,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.202,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.720,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.241,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,2.974,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.241,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.339,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.087,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.171,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.272,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.215,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,1.935,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.170,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.246,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.656,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.333,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.113,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.137,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.085,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.174,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.506,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.194,4.757,"32","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","basalt, conglomerate, arkose, rhyolite, quartz feldspar porphyry",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.270,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.191,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.209,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.118,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.243,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.072,5.532,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.162,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.250,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.253,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.156,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.317,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.123,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.122,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.022,0.807,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.774,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.192,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.271,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.160,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,1.530,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.113,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.176,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.145,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.161,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.196,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.678,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.326,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.206,"34b","Mafic and related intrusive rocks (Keweenawan age)","Pigeon River and Pukaskwa swarms: diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.091,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.545,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.852,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.148,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.146,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.032,4.258,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.187,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.129,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.076,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.418,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.738,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.258,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.152,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.361,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.111,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.707,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.772,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,2.303,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.240,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.178,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.118,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.264,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.479,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.128,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.414,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.133,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.238,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.188,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.016,1.134,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,2.407,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.083,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.144,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.118,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.077,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.065,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.148,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.103,"1","Metasedimentary rocks and mafic to ultramafic metavolcaic rocks","coarse clastic metasedimentary rocks, marble, quartz arenite, iron formation, komatiite, mafic metavolcanic rocks, and minor felsic metavolcanic rocks",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages. This unit comprises those greenstone sequences in which shallow-water supermature sediments (quartz arenites, shallow wat"]
[0.000,0.052,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.191,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.238,4.577,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.227,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.198,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.135,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.213,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.435,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.674,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.071,2.733,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.241,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.025,2.964,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.347,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.113,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,1.468,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.613,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.216,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.716,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.284,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.065,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.094,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.366,"34b","Mafic and related intrusive rocks (Keweenawan age)","Pigeon River and Pukaskwa swarms: diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.082,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.180,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.547,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.079,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.159,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.422,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.401,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.254,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.213,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,1.910,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.021,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.195,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.174,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.527,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.130,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.276,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.230,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.033,3.535,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.361,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.054,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.114,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.188,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.197,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.153,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.312,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.176,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.504,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.425,23.160,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.289,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.025,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.031,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.417,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.040,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.453,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.326,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.087,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.776,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.191,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.622,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.134,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.204,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.176,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.774,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.137,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.093,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.341,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.133,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.006,0.481,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.132,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.535,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.066,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.136,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.157,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.585,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.249,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.535,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.170,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.213,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.431,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.052,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,0.773,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.232,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,2.181,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.309,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.198,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.619,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.003,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.249,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.141,4.130,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.107,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.566,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.212,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.168,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.362,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.339,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.300,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.219,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.323,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.739,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.045,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.207,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.338,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.000,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.321,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.157,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.265,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.146,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.194,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.419,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.062,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.017,1.605,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.608,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.170,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.212,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.022,1.878,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.066,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.149,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.637,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.052,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.647,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.096,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.254,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.222,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.128,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.463,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,2.011,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.060,3.953,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.410,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.245,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.073,6.445,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.316,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.424,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.143,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.184,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.116,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.126,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,2.177,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.601,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.120,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.259,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.301,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.095,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.179,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.112,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.196,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.190,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.335,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.175,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.151,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.883,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.148,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.461,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.327,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.227,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.188,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.331,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.249,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.210,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,1.085,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.074,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.232,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,2.075,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.464,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.122,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.585,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.075,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.256,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.522,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.138,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.293,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.418,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.114,13.146,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.481,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.732,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.173,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.173,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.118,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.122,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.327,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.047,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.297,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.106,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.250,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.183,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.116,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.620,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"32","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","basalt, conglomerate, arkose, rhyolite, quartz feldspar porphyry",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.124,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.342,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.177,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.029,1.683,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.543,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.028,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.092,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.240,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.367,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.071,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.163,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.192,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.124,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.131,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.116,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.086,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.215,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.078,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.238,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.234,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.019,0.725,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.183,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"32","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","basalt, conglomerate, arkose, rhyolite, quartz feldspar porphyry",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.020,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.121,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.137,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.047,4.153,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.238,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.080,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.062,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.255,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.142,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.182,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.201,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.167,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.294,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.091,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.148,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.715,"34b","Mafic and related intrusive rocks (Keweenawan age)","Pigeon River and Pukaskwa swarms: diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.066,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.216,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.010,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.148,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.087,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.873,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.282,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.186,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.290,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.414,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.074,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.425,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.518,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.555,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.396,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.191,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.095,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.259,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.072,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.101,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.045,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.085,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.452,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.127,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.620,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.155,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.387,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.089,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,3.372,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.442,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.247,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.240,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.146,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.309,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.205,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.157,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.940,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.218,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.218,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.617,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.495,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.469,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.093,15.138,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.070,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.401,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.106,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.062,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.232,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.141,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.563,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.240,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.064,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.121,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.045,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.430,9.165,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.205,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.168,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,1.693,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.189,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.525,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.255,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,0.928,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.070,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.107,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.186,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.169,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.675,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.129,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,1.633,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.090,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.156,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.433,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.207,"32a","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Basalt and associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.201,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.504,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.132,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.410,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.701,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.211,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.182,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.237,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.185,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.302,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.227,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.166,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.147,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,1.612,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.010,1.461,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.086,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.293,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.354,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.396,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.168,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.348,"33b","Mafic intrusive rocks","Sudbury swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.173,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.145,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.187,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.148,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.155,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.141,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.174,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.182,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.152,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.209,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.168,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.030,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.265,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.351,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.543,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.298,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.106,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.137,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.098,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.099,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.178,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.002,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.014,2.559,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.159,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.194,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.192,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.201,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.031,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.599,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.093,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.047,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.532,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.282,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.311,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.198,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.037,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.112,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,1.148,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.180,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.840,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.040,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.294,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.220,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.733,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.329,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.216,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.284,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.079,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.085,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.106,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.163,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.099,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.082,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.175,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.024,2.230,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.199,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.152,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.280,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.031,"34d","Mafic and related intrusive rocks (Keweenawan age)","Felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.111,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.233,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.204,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.173,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,1.019,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.035,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.146,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.162,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.135,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.113,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.103,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.213,18.581,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.089,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.199,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.006,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.609,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.141,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.165,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.215,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.113,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.081,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,2.187,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.079,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.344,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.362,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.045,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.006,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.176,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.510,"13","Muscovite - bearing granitic rocks","muscovite-biotite and cordierite-biotite granite, granodiorite-tonalite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.233,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.122,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.816,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.921,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.148,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.117,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.061,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.035,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.011,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.079,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.423,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.278,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.113,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.092,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.037,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.093,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.094,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.110,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.494,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.160,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.310,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.267,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.160,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.063,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.245,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.113,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.122,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.668,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.069,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.008,0.744,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.504,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.388,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.120,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.307,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.078,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.021,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.120,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.755,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.049,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.197,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.109,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.016,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,1.303,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.137,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"10b","Mafic and ultramafic rocks","anorthosite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.415,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.053,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.047,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.129,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.026,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.413,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,0.752,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.244,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.457,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.075,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,2.137,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.158,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.228,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.107,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.061,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.297,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.066,"10b","Mafic and ultramafic rocks","anorthosite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.146,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"10b","Mafic and ultramafic rocks","anorthosite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.017,1.221,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.398,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.178,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.261,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.348,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.128,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.132,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.806,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.151,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.230,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.345,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.195,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.015,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.285,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,1.909,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.265,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.217,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.207,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.195,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,1.183,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.012,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.124,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.007,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.039,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.116,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.202,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.263,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.008,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.155,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.119,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.112,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.011,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.128,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,0.734,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.130,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.589,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,2.966,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.064,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.096,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.350,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.268,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.081,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.312,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.159,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.297,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.018,2.900,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.171,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.190,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.230,7.705,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.186,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.016,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.010,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.079,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.228,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.154,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.206,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.379,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.181,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.897,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.059,4.317,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.413,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.103,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.702,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.013,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.267,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.062,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.443,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.011,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.040,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.201,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.194,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.133,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.311,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.006,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.004,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.049,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.264,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.674,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.135,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.215,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.171,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.371,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.169,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.005,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.008,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.134,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.562,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.009,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.040,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.054,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.461,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.035,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.160,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.114,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.046,2.406,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.187,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.029,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.055,3.771,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.309,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.281,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.792,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.022,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.509,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.138,"33b","Mafic intrusive rocks","Sudbury swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.105,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.128,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.275,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.010,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.108,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.134,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.016,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.069,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.137,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.374,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.285,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.370,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.084,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.001,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.112,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.441,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.194,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,0.889,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.536,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"34","Mafic and related intrusive rocks (Keweenawan age)","diabase dikes and sills, ultramafic, gabbroic, granophyric and felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.166,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.004,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.184,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.138,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.168,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.004,0.721,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.058,3.806,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.320,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.045,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.141,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.075,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.317,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.001,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.323,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.308,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.051,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.410,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.207,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.007,0.722,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.207,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.558,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.092,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.213,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.022,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.056,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.228,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.441,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.039,1.634,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.190,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.483,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.154,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.228,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.656,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.311,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.373,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.153,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.013,2.084,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.416,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.187,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.191,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.052,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.805,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.541,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.090,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.453,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.148,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.176,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.130,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"3","Mafic metavolcanic and metasedimentary rocks","mafic metavolcanic rocks, minor iron formation",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.256,18.440,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.105,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.353,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.075,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,2.110,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.018,1.594,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.079,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,1.349,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.160,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.327,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.235,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.153,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.086,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.174,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.119,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.459,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.184,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.334,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.121,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.129,16.002,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.139,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.463,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.143,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.282,"33b","Mafic intrusive rocks","Sudbury swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.144,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.503,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.148,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.210,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.220,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.126,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.459,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.003,0.550,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.147,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.021,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.118,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.026,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.055,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.023,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.047,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.131,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.104,9.607,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.265,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.188,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.164,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.456,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.013,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.276,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.225,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.082,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.289,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.112,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.300,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.121,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,1.063,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.050,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.199,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.015,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.235,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.348,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.072,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.227,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.188,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.035,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.150,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.492,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.039,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.517,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.195,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.068,2.597,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.149,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.140,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.018,2.276,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.193,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.011,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.053,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.458,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.178,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.046,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.947,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.013,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.142,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.028,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.327,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.121,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.222,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.578,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.236,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.716,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.241,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.322,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.041,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.006,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.072,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.256,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.162,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.001,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.008,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.265,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.005,1.004,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.377,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,1.058,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.364,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.324,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.134,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.224,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.008,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.006,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.311,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.116,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.113,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.191,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.281,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.078,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.016,1.682,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.145,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.216,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.180,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.035,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.900,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"33b","Mafic intrusive rocks","Sudbury swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.047,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.148,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.433,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.026,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.137,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.031,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.013,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.115,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.001,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.470,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"33b","Mafic intrusive rocks","Sudbury swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.055,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.116,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.011,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.574,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.307,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"34","Mafic and related intrusive rocks (Keweenawan age)","diabase dikes and sills, ultramafic, gabbroic, granophyric and felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.119,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.074,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.126,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.329,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.128,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.131,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.221,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.359,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.213,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.025,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.006,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.060,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.135,5.940,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.078,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.022,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.141,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.036,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.015,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.020,0.612,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.179,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.011,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,1.328,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.015,3.288,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.171,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"33","Mafic intrusive rocks","diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.250,"33b","Mafic intrusive rocks","Sudbury swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.126,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.503,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.192,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.314,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.063,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.020,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.014,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.307,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.131,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.079,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.111,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.013,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.113,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.149,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.541,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.018,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.216,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.214,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.022,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.031,3.416,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.007,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.471,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.093,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.029,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.024,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.023,1.110,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.027,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.399,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.280,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.257,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.028,1.185,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.259,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.383,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.095,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.147,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.225,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.133,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.142,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.175,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.115,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.008,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.971,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.011,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.218,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.143,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.371,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.134,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.287,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.005,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.064,1.614,"10b","Mafic and ultramafic rocks","anorthosite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.087,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.571,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.200,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.070,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.185,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.167,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.150,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.024,1.055,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.126,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.194,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.014,0.610,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.025,1.151,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.051,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.259,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.847,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.404,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.255,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.239,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.000,0.052,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.102,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.035,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.041,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.234,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.029,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.010,2.040,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.010,1.089,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.016,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.009,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.472,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.011,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.483,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.228,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.153,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.035,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.171,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.073,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.010,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.011,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.113,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.449,6.780,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.051,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.211,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.065,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,2.260,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.006,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.132,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.116,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.013,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.478,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.115,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.106,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.295,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.018,1.406,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.068,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.049,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.114,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.826,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.012,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.312,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.480,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.110,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.089,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.131,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.119,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.098,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.107,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.045,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.204,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.011,2.452,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.185,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.181,"34d","Mafic and related intrusive rocks (Keweenawan age)","Felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.018,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.134,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.171,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.047,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.012,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.098,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.513,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.186,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.000,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.063,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.416,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.238,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.179,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.172,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.177,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.040,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.134,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.231,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,1.145,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.779,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.255,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.141,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.544,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,1.868,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.098,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.013,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.239,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.064,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.152,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.214,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.231,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.149,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.107,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.127,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.282,"16","Hornblendite - nepheline syenite suite","pyroxenite, diorite, monzonite, syenite, nepheline syenite, foid-bearing syenite (saturated to undersaturated suite)",null,null,"ARCHEAN","NEOARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group"]
[0.000,0.040,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.036,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.122,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.152,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.219,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.087,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.113,5.021,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.021,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.211,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.024,1.129,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.135,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.070,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.002,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.227,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.106,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.136,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.249,23.171,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.322,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.262,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.612,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.066,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.118,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.202,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.337,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.067,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.547,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.212,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.221,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.622,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.031,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.139,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.111,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.030,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.193,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.154,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.008,1.119,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.032,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.178,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.306,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.050,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,0.514,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.207,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.099,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.021,3.052,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.282,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.462,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.290,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.064,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.086,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.165,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.159,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.029,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.378,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.098,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.102,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.449,"7b","Metasedimentary rocks","argillite, slate, mudstone",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.522,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.102,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.270,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.272,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.099,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.064,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.008,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.257,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.158,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.125,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.028,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,1.446,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.174,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.307,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.912,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.110,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.049,4.171,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.029,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.074,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.131,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.037,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.009,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.155,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.367,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.024,1.098,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.269,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.007,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.435,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.274,"10b","Mafic and ultramafic rocks","anorthosite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,1.302,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.157,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.131,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.351,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.070,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.035,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.155,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.178,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.145,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.089,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.535,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.156,"34c","Mafic and related intrusive rocks (Keweenawan age)","Ultramatic, gabbroic and granophyric intrusions",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.189,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.374,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.174,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.135,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.127,"10b","Mafic and ultramafic rocks","anorthosite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.100,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.383,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.091,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.287,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.061,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.143,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.012,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.167,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.235,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.161,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.152,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.163,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.813,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.225,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.236,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.655,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.376,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.116,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.115,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.027,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.023,1.261,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.410,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.246,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.132,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.382,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.279,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.052,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.127,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.436,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.031,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.384,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.670,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.137,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.680,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.065,2.574,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.036,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.101,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.163,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.338,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.410,"34b","Mafic and related intrusive rocks (Keweenawan age)","Pigeon River and Pukaskwa swarms: diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.025,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.085,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.063,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.225,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.659,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.594,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.089,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.133,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.126,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.051,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.008,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.029,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.025,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.187,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.034,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.312,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.261,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.010,0.549,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.134,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.010,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.024,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.448,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.048,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.026,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.158,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.189,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.400,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.422,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.071,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.222,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.017,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.270,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.010,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.011,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.305,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.105,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.899,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.544,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.030,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.037,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.221,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.162,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.132,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.022,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.170,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.167,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.138,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.035,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.020,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.631,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.007,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.067,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.017,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.804,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.409,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.536,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.184,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.013,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.092,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.075,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.112,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.114,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.367,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.493,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.227,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.168,"34c","Mafic and related intrusive rocks (Keweenawan age)","Ultramatic, gabbroic and granophyric intrusions",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.340,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.125,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,0.674,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.177,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.035,1.289,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.156,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.101,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.067,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.051,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.293,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.010,0.650,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.214,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.077,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.024,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.230,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.233,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.467,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.120,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.083,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.413,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.132,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.421,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.275,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.360,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.713,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.065,1.549,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.204,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.259,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.042,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.021,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.064,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.357,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.116,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.557,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.180,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.132,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.200,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.239,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.314,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.061,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.024,5.295,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.024,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.553,"14c","Diorite - monzonite - granodiorite suite","syenite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.626,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.041,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.117,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.019,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.053,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.408,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.034,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.289,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.153,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.084,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,1.099,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.021,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.067,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.041,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.072,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.153,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.109,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.036,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.340,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.016,3.041,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.208,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.431,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.049,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.042,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.178,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.159,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.034,1.351,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.181,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.060,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.015,0.721,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.050,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.153,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.178,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.029,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.223,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.057,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.222,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.182,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.054,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.092,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.146,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.072,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.175,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.202,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.168,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.238,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.158,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.337,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.161,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.133,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.071,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.048,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.231,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.061,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.067,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.220,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.076,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.133,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.153,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.069,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.261,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.197,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.119,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.558,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.357,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.268,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.120,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.227,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.045,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.020,1.069,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.449,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.038,4.041,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.252,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.274,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.260,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.150,"34c","Mafic and related intrusive rocks (Keweenawan age)","Ultramatic, gabbroic and granophyric intrusions",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.219,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.084,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.298,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.041,1.363,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.750,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.169,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.090,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.089,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.136,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.064,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.306,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.017,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.410,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.153,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.458,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.124,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.142,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.169,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.054,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.649,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.086,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.133,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.064,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,1.094,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.212,"34b","Mafic and related intrusive rocks (Keweenawan age)","Pigeon River and Pukaskwa swarms: diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.088,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.845,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.112,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.099,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.031,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.256,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,0.501,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.058,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.308,"34b","Mafic and related intrusive rocks (Keweenawan age)","Pigeon River and Pukaskwa swarms: diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.019,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.036,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.011,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.047,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.017,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.125,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.055,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.130,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.011,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.436,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.183,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.046,3.809,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.039,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.013,1.343,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.102,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.037,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.111,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.146,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.013,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.130,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.244,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.133,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.241,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.136,2.667,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.494,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.007,1.327,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.069,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.156,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.032,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.287,"7b","Metasedimentary rocks","argillite, slate, mudstone",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.118,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.020,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.283,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.538,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.569,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.137,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.021,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.102,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.051,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.309,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.143,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.172,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.031,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.022,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.046,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.224,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.099,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.128,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.230,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.051,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.135,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.139,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.044,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.223,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.025,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.109,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.049,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.525,"34c","Mafic and related intrusive rocks (Keweenawan age)","Ultramatic, gabbroic and granophyric intrusions",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.026,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.030,1.903,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.143,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.141,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,1.020,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.312,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.031,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.447,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.304,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.136,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.016,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.106,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.209,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.240,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.212,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.109,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.226,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.116,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.092,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.031,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.013,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.025,1.061,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.086,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.149,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.024,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.033,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.299,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.123,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.029,1.984,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.066,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.032,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.324,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.117,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,1.205,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.118,"24a","Sedimentary Rocks (Animikie Group)","Rove Formation: argillite, shale, wacke, minor volcanic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.087,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.251,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.144,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"34a","Mafic and related intrusive rocks (Keweenawan age)","Logan and Nipigon sills (1109 Ma): diabase sills",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.019,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.124,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.078,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.161,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.029,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.074,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.132,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.300,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.568,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.012,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.009,"24b","Sedimentary Rocks (Animikie Group)","Gunflint Formation: conglomerate, taconite, algal chert, chert, carbonate rocks, argillite-tuff",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.014,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.222,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.293,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.060,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.028,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.306,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.111,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.004,0.592,"10b","Mafic and ultramafic rocks","anorthosite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.014,1.637,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.241,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.122,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.193,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.028,0.849,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.136,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.123,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.178,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.067,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.172,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.014,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.019,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.402,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.246,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.332,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.026,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.150,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.150,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.146,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.479,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.701,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.181,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.016,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.115,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.013,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.009,0.371,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.020,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.029,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.101,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.007,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.009,0.718,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.364,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.247,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.004,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.033,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.588,"34e","Mafic and related intrusive rocks (Keweenawan age)","Abitibi swarm (1141 Ma): diabase dikes",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.054,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.022,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.025,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.548,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.559,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.030,1.369,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.178,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.015,0.831,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.059,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.421,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.035,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.092,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.055,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.026,1.153,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.128,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.148,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.126,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.252,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.017,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.229,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.067,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.048,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.175,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.045,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.729,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.113,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.094,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.096,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.032,2.479,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.073,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.118,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.129,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.036,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.052,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.035,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.170,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.008,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.609,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.080,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.231,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.116,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.145,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.303,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.102,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,1.323,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.211,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.068,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.618,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.348,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.061,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.189,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.543,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.051,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.021,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.104,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.246,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.906,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.072,"23a","Mafic and related intrusive rocks","Preissac swarm: diabase dikes",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.130,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.383,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.139,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.171,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.174,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.031,1.602,"55",null,null,"Shale, limestone, dolostone, siltstone",null,"PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.092,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.051,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.129,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.573,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.143,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.705,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.139,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.070,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.582,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.341,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.112,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.528,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,1.064,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.164,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.213,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.053,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.245,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.048,1.029,"56",null,null,"Sandstone, shale, dolostone, siltstone",null,"PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.064,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.076,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.080,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.085,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.466,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.550,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.047,0.982,"32a","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Basalt and associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.164,"23a","Mafic and related intrusive rocks","Preissac swarm: diabase dikes",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.148,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.073,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.437,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.272,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.237,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.016,0.914,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.021,1.912,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.065,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.077,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.206,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.009,0.958,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.074,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.461,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.270,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.012,1.294,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.195,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.085,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.032,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.287,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.046,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.159,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.628,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.312,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.024,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.077,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.047,3.066,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.084,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.201,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.043,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.027,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.303,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.100,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.788,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.177,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.406,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.196,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.043,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.197,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.273,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.112,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.019,2.331,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.114,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.173,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.028,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.158,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.035,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,0.931,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.102,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.300,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.588,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.155,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.312,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.093,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.031,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.075,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.212,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.138,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.012,1.857,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.112,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.094,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.022,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.159,"5a","Mafic to intermediate metavolcanic rocks","Andesitic flows, tuffs and breccias with minor rhyolites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.130,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.164,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.052,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.012,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.199,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.062,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.950,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.265,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.011,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.088,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.286,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.092,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.079,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.298,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.108,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.155,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.165,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.038,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.051,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.361,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.015,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.366,"9b","Coarse clastic metasedimentary rocks","Alkaline metavolcanic rocks: mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.127,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.190,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.069,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.056,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.179,"6b","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.084,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.212,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.095,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.334,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.108,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.143,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.030,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.210,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.071,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.082,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.069,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.010,0.464,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.016,0.602,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.101,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.141,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.010,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.090,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.587,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.290,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.144,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.038,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.228,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.106,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,1.103,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.135,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.014,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.065,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.054,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,1.826,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.181,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.015,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.099,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.223,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.144,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.058,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.009,1.306,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.060,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.047,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.013,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.139,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.299,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.047,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.435,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.050,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.249,9.398,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.124,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.450,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.058,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.014,0.554,"15a","Massive granodiorite to granite","Potassium feldspar megacrystic units",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.951,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.110,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.290,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.063,2.031,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.774,20.887,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.155,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.032,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.296,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.009,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.934,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.153,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.161,"9","Coarse clastic metasedimentary rocks","mainly coarse clastic metasedimentary rocks, with minor, mainly alkalic, mafic to felsic metavolcanic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.293,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.047,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.027,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.038,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.068,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.016,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.311,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.094,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.003,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.022,1.804,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.096,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.680,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.021,2.729,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.043,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.115,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.223,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.026,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.031,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.117,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.821,13.504,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.176,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.187,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.025,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.057,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.261,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.154,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.251,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.193,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.127,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.208,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.119,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.806,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.205,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.467,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.002,0.315,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.108,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.048,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,1.059,"6a","Felsic to intermediate metavolcanic rocks","dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.059,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.047,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.042,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.119,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.018,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.353,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.693,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.033,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.004,0.578,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.048,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.013,0.512,"32b","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Rhyolite, quartz feldspar porphyry; associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.166,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.001,0.267,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"10c","Mafic and ultramafic rocks","ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.599,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.843,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"4a","Mafic to ultramafic metavolcanic rocks","Ultramafic metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.129,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.140,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.152,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.041,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.212,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.117,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.288,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.034,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.501,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.152,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.234,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.039,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.013,1.058,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.149,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.028,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.038,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.029,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.123,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.017,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.077,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.044,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.131,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.143,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.020,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.030,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.042,2.429,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.073,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.020,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.033,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.134,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.495,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.014,0.870,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.070,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.285,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.177,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.089,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.125,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.142,"55",null,null,"Shale, limestone, dolostone, siltstone",null,"PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.031,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.042,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.026,3.024,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.015,0.657,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.018,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.023,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.063,"4b","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks metasedimentary rocks and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.136,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.142,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.018,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.000,0.076,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.038,0.888,"36","Jacobsville Gp.; Oronto Gp.","sandstone, shale, conglomerate",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.115,"9a","Coarse clastic metasedimentary rocks","Metasedimentary rocks: conglomerate, arkose, arenite, wacke, sandstone, siltstone, argillite",null,null,"ARCHEAN","NEO-ARCHEAN (2.5 to 2.9 Ga)",null,null,"Superior",null,"These rocks are referred to as “Timiskaming” in the Abitibi subprovince of the Superior province."]
[0.050,2.341,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.009,0.582,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.023,1.358,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.332,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.009,0.946,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.276,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.181,"55",null,null,"Shale, limestone, dolostone, siltstone",null,"PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.001,0.113,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.065,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.293,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.581,6.031,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.283,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.845,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.101,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.236,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.065,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.181,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.081,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.164,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.277,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.150,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.385,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.248,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.114,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.293,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.121,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.322,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.049,2.212,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.148,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.137,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.102,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.070,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.037,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.042,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.432,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.085,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.220,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.147,"5b","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.151,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.059,3.319,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,0.651,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.162,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.062,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.041,3.615,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.102,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.188,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.115,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.081,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.888,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.119,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.097,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.015,0.616,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.139,"14a","Diorite - monzonite - granodiorite suite","diorite, monzonite, quartz monzonite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.921,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.021,1.634,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.109,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.129,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.073,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.145,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.172,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.036,2.423,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.016,1.943,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.004,0.761,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.148,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.076,2.040,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.096,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.299,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.057,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.362,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.133,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.074,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.186,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,0.417,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.219,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.268,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.416,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.092,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.223,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.202,9.615,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.144,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.137,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.442,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.139,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.151,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.139,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.079,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.444,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.007,0.604,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.053,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.198,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.055,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.188,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.308,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.055,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.291,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.154,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.015,1.268,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.070,2.949,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.119,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.046,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.063,"7d","Metasedimentary rocks","conglomerate and arenite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.009,0.490,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.075,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.163,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.139,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.202,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.111,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.020,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.124,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.037,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.170,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.004,0.384,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.113,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.065,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.112,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.048,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.057,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.210,"14b","Diorite - monzonite - granodiorite suite","granodiorite, granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.205,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.289,"34","Mafic and related intrusive rocks (Keweenawan age)","diabase dikes and sills, ultramafic, gabbroic, granophyric and felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.070,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.155,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.071,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.010,0.474,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.008,0.605,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.039,2.354,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.213,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"36","Jacobsville Gp.; Oronto Gp.","sandstone, shale, conglomerate",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.104,"7d","Metasedimentary rocks","conglomerate and arenite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.061,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.094,"32a","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Basalt and associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.104,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"7d","Metasedimentary rocks","conglomerate and arenite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.099,"7d","Metasedimentary rocks","conglomerate and arenite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"34","Mafic and related intrusive rocks (Keweenawan age)","diabase dikes and sills, ultramafic, gabbroic, granophyric and felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.201,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.079,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.078,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.004,0.361,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.293,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.390,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.136,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.095,"34","Mafic and related intrusive rocks (Keweenawan age)","diabase dikes and sills, ultramafic, gabbroic, granophyric and felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.091,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.269,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.065,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.070,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.135,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,1.482,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.344,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.172,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.198,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.073,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.206,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.007,1.008,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.069,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.145,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.603,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.509,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.096,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.033,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.194,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,0.344,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,0.447,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.208,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.039,3.078,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.057,"34","Mafic and related intrusive rocks (Keweenawan age)","diabase dikes and sills, ultramafic, gabbroic, granophyric and felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.033,1.439,"32a","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Basalt and associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.038,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.161,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.060,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.148,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.230,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.052,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.099,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.593,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.146,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.121,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.784,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.266,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.065,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.245,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.007,0.368,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.116,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.429,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.392,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.111,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.169,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.309,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.070,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[2.607,107.398,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.072,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.141,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.096,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.204,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.007,0.753,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.086,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.169,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.050,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.010,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.081,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.053,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.261,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.097,"7c","Metasedimentary rocks","marble, chert, iron formation, minor metavolcanic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.046,3.601,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.072,"2","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias",null,null,"ARCHEAN","MESOARCHEAN (2.9 to 3.4 Ga)",null,null,"Superior",null,"This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.101,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.167,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.017,"32b","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Rhyolite, quartz feldspar porphyry; associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.132,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,0.573,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.015,"34","Mafic and related intrusive rocks (Keweenawan age)","diabase dikes and sills, ultramafic, gabbroic, granophyric and felsic to intermediate intrusive rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.051,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.090,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.187,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.003,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.345,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.337,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.167,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.132,"32b","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Rhyolite, quartz feldspar porphyry; associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.133,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.390,"20","Quirke Lake Group","sandstone, siltstone, conglomerate, limestone, dolostone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.110,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.048,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.238,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.191,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.212,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.093,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.292,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.110,"32b","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Rhyolite, quartz feldspar porphyry; associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.159,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.048,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.075,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.025,0.805,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.070,"35","Carbonatite - alkalic intrusive suite (1.0 to 1.2 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic rocks",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.040,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.030,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.075,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.082,"32b","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Rhyolite, quartz feldspar porphyry; associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.106,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.069,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.064,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.066,"32b","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Rhyolite, quartz feldspar porphyry; associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"32b","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Rhyolite, quartz feldspar porphyry; associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.031,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.282,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.014,1.450,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.127,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.165,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.179,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.084,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.174,3.748,"36","Jacobsville Gp.; Oronto Gp.","sandstone, shale, conglomerate",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.024,1.322,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.158,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.161,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.077,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.073,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.017,1.731,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.175,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.136,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.057,2.079,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.152,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.093,"32b","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Rhyolite, quartz feldspar porphyry; associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.071,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.495,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.065,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.258,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.158,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.099,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.580,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.108,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.005,0.484,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.085,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.404,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.127,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.146,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.084,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.099,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.106,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.091,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.067,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.003,0.305,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.202,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.385,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.010,0.871,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.197,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.012,0.626,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.084,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.382,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.155,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.117,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.083,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.216,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.174,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.081,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.004,0.524,"20","Quirke Lake Group","sandstone, siltstone, conglomerate, limestone, dolostone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.125,"32a","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Basalt and associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.061,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.217,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.017,1.094,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.096,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.127,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.080,6.099,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.424,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.065,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.140,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.061,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.008,0.917,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.298,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.089,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.125,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.094,"31","Sibley Gp.","conglomerate, sandstone, shale",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.295,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.054,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.200,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.012,0.851,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.179,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.201,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.150,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.223,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.187,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.087,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.004,0.665,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.303,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.053,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.046,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.111,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.040,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.072,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.187,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.338,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.121,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.085,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.106,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.047,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.093,"10a","Mafic and ultramafic rocks","gabbro",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.276,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.007,0.633,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.033,2.422,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.177,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.237,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.024,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.007,1.190,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.144,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.005,0.518,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.401,"7e","Metasedimentary rocks","Paragneiss andmigmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.128,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.040,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.117,10.290,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.297,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.353,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.382,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.308,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.117,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.136,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.008,0.568,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.100,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.231,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.055,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.188,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.214,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.079,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.131,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.183,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.296,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.138,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.359,"4","Mafic to ultramafic metavolcanic rocks","mafic metavolcanic rocks with minor komatiite, metasedimentary and pyroclastic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.059,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.176,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.093,"20","Quirke Lake Group","sandstone, siltstone, conglomerate, limestone, dolostone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.200,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.020,2.773,"29b","Sudbury Igneous Complex","Norite-gabbro, quartz norite, sublayer and offset rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.256,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.240,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.142,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.005,0.551,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.086,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.084,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.040,3.535,"29a","Sudbury Igneous Complex","Granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.140,"20","Quirke Lake Group","sandstone, siltstone, conglomerate, limestone, dolostone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.492,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.270,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.021,1.460,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.186,"10","Mafic and ultramafic rocks","gabbro, anorthosite, ultramafic rocks",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.095,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.153,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.027,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.065,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.077,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.127,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.047,2.923,"28c","Whitewater Gp.","Onaping Formation: lapilli tuff, breccia, felsic flows and intrusions, minor carbonate and cherty",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.098,"12","Foliated tonalite suite","tonalite to granodiorite-foliated to massive",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,1.109,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.049,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.124,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.161,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.090,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.295,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.263,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.325,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.072,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.184,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.015,3.303,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.129,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.052,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.138,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.032,2.719,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.145,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.060,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.789,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.205,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.009,0.454,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.169,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.107,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.053,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.509,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.093,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.006,0.417,"8","Migmatized supracrustal rocks","metavolcanic rocks, minor metasedimentary rocks, mafic gneisses of uncertain protolith, granitic gneisses",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.200,"20","Quirke Lake Group","sandstone, siltstone, conglomerate, limestone, dolostone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,0.565,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.155,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.473,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.095,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,2.239,"28b","Whitewater Gp.","Onwatin Formation: carbonaceuos slate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.183,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.006,0.333,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.023,1.097,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.106,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.065,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.067,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.038,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.019,1.911,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.128,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.535,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.004,0.864,"29b","Sudbury Igneous Complex","Norite-gabbro, quartz norite, sublayer and offset rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.018,1.719,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.070,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.185,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.398,"28c","Whitewater Gp.","Onaping Formation: lapilli tuff, breccia, felsic flows and intrusions, minor carbonate and cherty",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.198,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.129,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.065,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.018,1.019,"28a","Whitewater Gp.","Chelmsford Formation: wacke, minor siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.059,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.090,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.440,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.382,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.564,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,2.372,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.103,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.104,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.340,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,1.374,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.073,"23a","Mafic and related intrusive rocks","Preissac swarm: diabase dikes",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.167,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.161,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.274,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.254,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.143,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.091,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.030,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.136,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.080,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.234,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.067,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.546,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.039,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.121,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.199,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.073,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.072,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.093,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.135,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.132,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.114,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.191,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.087,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.427,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.066,"27","Carbonatite - alkalic intrusive suite (ca. 1.9 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultimafic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.110,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.007,1.263,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.058,7.066,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.164,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.013,0.489,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.390,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.433,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.408,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.053,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.156,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.063,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.082,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.046,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.049,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.048,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.028,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.216,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.311,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.556,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.012,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.251,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.079,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.193,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.066,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.089,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.018,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,0.716,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.120,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.031,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.008,0.974,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.041,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.258,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.120,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.046,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.354,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.051,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.037,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.059,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.081,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.137,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.083,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.345,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,1.207,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.337,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.181,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.043,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.119,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.149,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.001,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.018,0.801,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.044,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.308,"15","Massive granodiorite to granite","massive to foliated granodiorite to granite",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.069,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.038,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.122,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.151,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.011,3.195,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.219,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.317,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.156,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.052,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.056,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.118,8.856,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.163,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.117,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.220,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.039,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.003,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.567,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.311,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.196,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.077,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.036,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.008,2.233,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.074,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.292,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.124,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.130,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.046,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.747,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.205,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.035,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.023,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.752,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.138,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.131,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.032,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.125,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.055,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.011,1.499,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.157,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.180,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.026,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.455,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.059,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.088,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.069,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.026,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.154,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.076,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.414,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.083,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.029,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.032,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.016,1.084,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.563,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.027,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.005,1.571,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.062,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.057,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.344,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.094,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.798,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.135,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.024,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.106,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.079,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.044,"36","Jacobsville Gp.; Oronto Gp.","sandstone, shale, conglomerate",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.394,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.097,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.184,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.037,"23a","Mafic and related intrusive rocks","Preissac swarm: diabase dikes",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.048,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.034,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.009,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.067,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.128,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.031,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.057,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.062,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.028,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.094,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.183,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.118,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.082,"23a","Mafic and related intrusive rocks","Preissac swarm: diabase dikes",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.002,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.019,"7","Metasedimentary rocks","wacke, siltstone, arkose, argillite, slate, marble, chert, iron formation, minor metavolcanic rocks,conglomerate, arenite, paragneiss, migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.087,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.103,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.591,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.131,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.005,1.294,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.044,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.133,"30a","Felsic intrusive rocks","Grantic, alkali granite, granodiorite, quartz feldspar porphyry; minor related volcanic rocks (1.4 to 1.5 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.089,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.057,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.028,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.107,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.164,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.292,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.089,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.046,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.026,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.053,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.050,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.002,0.288,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.097,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.711,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.074,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.135,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.065,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.091,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.064,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.086,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.264,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.080,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.404,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.454,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.060,"32a","Osler Gp., Mamainse Point Fm., Michipicoten Island Fm.","Basalt and associated conglomerate and arkose",null,null,"PROTEROZOIC","MESOPROTEROZOIC (0.9 to 1.6 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.104,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.064,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.003,0.957,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.097,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.027,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.083,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.059,"6","Felsic to intermediate metavolcanic rocks","rhyolitic, rhyodacitic, dacitic and andesitic flows, tuffs and breccias related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.082,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.390,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.255,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.366,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,0.489,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.067,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.172,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.157,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.187,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.048,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.142,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.047,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.006,0.590,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.041,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.168,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.030,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.045,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.066,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,0.495,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.170,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.150,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.231,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.179,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.148,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.059,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.006,0.827,"30a","Felsic intrusive rocks","Grantic, alkali granite, granodiorite, quartz feldspar porphyry; minor related volcanic rocks (1.4 to 1.5 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.043,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.129,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.062,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.046,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.063,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.086,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.176,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.150,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.037,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.288,12.548,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.101,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.032,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.121,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.292,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.174,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.213,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.072,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.197,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.080,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.192,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.091,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.031,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.251,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.036,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.108,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.350,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.105,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.807,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.208,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.120,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.187,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.402,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.071,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.001,0.165,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.024,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.063,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.176,"29b","Sudbury Igneous Complex","Norite-gabbro, quartz norite, sublayer and offset rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.156,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.039,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.081,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.035,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.343,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.056,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.002,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.033,4.294,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.075,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.035,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.058,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.371,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.065,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.509,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.011,1.200,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.199,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.103,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.869,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.140,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.169,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.040,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.120,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.662,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.202,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.039,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.128,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.029,1.999,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.198,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.167,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.031,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.065,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.008,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.099,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.069,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.070,"19","Hough Lake Group","siltstone, wacke, argillite, quartz-feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.110,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.563,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.212,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.057,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.667,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.093,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.024,2.246,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.096,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.600,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.459,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.046,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.079,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.062,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.112,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.402,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.017,1.331,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.048,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.233,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.364,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.040,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.065,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.039,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.096,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.054,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.037,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.201,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.098,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,1.167,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.001,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.092,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.073,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.154,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.108,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.008,0.966,"5","Mafic to intermediate metavolcanic rocks","basaltic and andesitic flows, tuffs and breccias,  related migmatites",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group. This unit was formerly classified as Keewatin. Most of these sequences range in age from 2.7 Ga to 2.8 Ga based on U/Pb zircon ages."]
[0.000,0.097,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.265,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.094,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.278,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.121,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.126,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.178,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.580,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,1.000,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.308,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.055,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.166,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.057,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.389,"14","Diorite - monzonite - granodiorite suite","diorite, tonalite, monzonite, granodiorite, syenite and hypabyssal equivalents (saturated to oversaturated suite)",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.032,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.211,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.062,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.009,0.877,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.012,1.346,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.208,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,1.011,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.261,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.084,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.450,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.267,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.014,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.113,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.196,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.178,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.355,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.013,1.335,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.418,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.057,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.047,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.033,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.068,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.169,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.158,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.358,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.532,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.077,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.202,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.336,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.054,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.228,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.012,0.480,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.065,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.153,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.222,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.041,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.046,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.045,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.007,0.573,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.070,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.082,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,1.364,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.310,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.088,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.040,3.183,"30b","Felsic intrusive rocks","Killarney monzogranite and granite rocks (1.7 and 1.4 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.075,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.078,4.009,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.190,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.298,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.054,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.114,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.499,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.248,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.257,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.105,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.419,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.199,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.123,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.053,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.054,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.119,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.194,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.133,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.149,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.132,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.245,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.040,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.083,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.149,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.036,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.063,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.013,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.341,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.103,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.099,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.125,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.092,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.119,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.098,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.063,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.649,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.124,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.010,1.395,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.108,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.189,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.105,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.178,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.152,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.002,0.528,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.237,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.122,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.055,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.152,9.667,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.002,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.081,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.265,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.109,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.167,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.057,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.184,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.170,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.004,0.279,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.044,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.061,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.320,"7a","Metasedimentary rocks","wacke, siltstone, arkose",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.070,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.023,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.068,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.168,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.491,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.036,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.052,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.196,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.344,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.104,3.145,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.159,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.072,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.025,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.144,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.123,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.130,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.305,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.139,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.489,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.005,0.762,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.050,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.073,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.068,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.061,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.103,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.081,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.101,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.051,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.145,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.169,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.089,"21","Cobalt Group","siltstone,argillite, sandstone, conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.036,"27","Carbonatite - alkalic intrusive suite (ca. 1.9 Ga)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultimafic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.288,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.108,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.042,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.098,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.107,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.094,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.634,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.007,1.162,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.028,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.743,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.431,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.257,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.196,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.045,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.053,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.930,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.131,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.189,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.180,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.124,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.310,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.180,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.892,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.005,0.518,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.739,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.273,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.009,1.228,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.135,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.055,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.087,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.017,2.287,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.037,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.418,"30b","Felsic intrusive rocks","Killarney monzogranite and granite rocks (1.7 and 1.4 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.193,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.443,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.289,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.138,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.234,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.034,1.614,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.031,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.165,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.274,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.639,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.106,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.069,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.044,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.080,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.025,2.359,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.015,1.964,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.193,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.031,"38","Carbonatite - alkalic intrusive suite (450 to 600 Ma)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic intrusions",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.148,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.091,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.188,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.254,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.318,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.181,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.008,1.364,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.050,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.090,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.181,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.007,1.533,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.090,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.008,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.086,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.048,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.056,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.005,0.764,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.634,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.501,"18c","Elliot Lake Group","Volcanic rocks: includes mafic, intermediate and felsic metavolcanic rocks, intercalated metasedimentary rocks and epiclastic rocks",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.066,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.001,0.158,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.007,1.032,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.139,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.676,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.762,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.302,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.056,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.265,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.103,"38","Carbonatite - alkalic intrusive suite (450 to 600 Ma)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic intrusions",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.578,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.005,0.570,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.185,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.334,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.100,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.317,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.095,"38","Carbonatite - alkalic intrusive suite (450 to 600 Ma)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic intrusions",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.467,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.138,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.094,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.428,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.435,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.056,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.078,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,0.802,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.454,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.031,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.263,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.029,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.216,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.096,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.004,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.031,0.816,"55b",null,null,"Shale, limestone, dolostone, siltstone","Georgian bay Fm.; Blue Mountain Fm.; Billings Fm.; Collingwood Mb.; Eastview Mb.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.111,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.156,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.441,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.804,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.029,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.077,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.154,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.172,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.303,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.296,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.045,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.148,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.277,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.067,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.124,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.030,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.036,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.101,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.307,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.146,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.232,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.072,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.085,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.123,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.369,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.109,"17b","Mafic and ultramafic intrusive rocks","Gabbro, anorthosite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.055,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.294,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.022,1.160,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.079,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.474,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.105,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.043,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.108,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.205,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.322,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.207,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.162,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.742,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.150,"38","Carbonatite - alkalic intrusive suite (450 to 600 Ma)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic intrusions",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.181,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.504,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.223,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.167,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.059,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.147,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.060,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.073,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.050,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.148,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.392,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.108,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.156,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.212,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.166,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.778,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.458,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.139,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.057,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.012,1.202,"30a","Felsic intrusive rocks","Grantic, alkali granite, granodiorite, quartz feldspar porphyry; minor related volcanic rocks (1.4 to 1.5 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.111,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.173,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.356,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.188,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.103,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.724,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.096,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.409,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.097,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.039,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.162,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.048,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.428,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.410,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.108,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.325,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.059,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.059,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.271,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.288,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.164,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.062,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.570,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.109,"11","Gneissic tonalite suite","tonalite to granodiorite-foliated to gneissic-with minor supracrustal inclusions",null,null,"ARCHEAN","NEO-TO MESOARCHEAN (2.5 to 3.4 Ga)",null,null,"Superior",null,"Granulite grade units may be shown by screened overprint. Rocks in these groups are subdivided lithologically. The order does not imply age relationship within or among group."]
[0.000,0.076,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.196,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.049,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.096,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.027,"30a","Felsic intrusive rocks","Grantic, alkali granite, granodiorite, quartz feldspar porphyry; minor related volcanic rocks (1.4 to 1.5 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.567,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.106,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.273,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.211,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.187,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.092,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.205,"18b","Elliot Lake Group","Matinenda Formation: quartz feldspar sandstone, conglomerate, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,1.070,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.192,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.074,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.220,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.090,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.619,"20","Quirke Lake Group","sandstone, siltstone, conglomerate, limestone, dolostone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.358,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.097,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.016,1.521,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.193,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.058,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.066,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.136,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.540,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.045,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.082,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.090,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.082,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.066,5.992,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.164,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.167,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.099,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.186,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.263,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.371,"18a","Elliot Lake Group","McKim Formation: siltstone, wacke, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.549,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.050,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.261,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.194,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.361,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.115,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.314,"19c","Hough Lake Group","Ramsay Lake Formation: conglomerate, minor sandstone, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.472,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.163,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.003,0.711,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.230,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.748,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.230,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.087,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.096,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.326,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.006,1.256,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.134,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.048,4.509,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.143,"20","Quirke Lake Group","sandstone, siltstone, conglomerate, limestone, dolostone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.120,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.045,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.008,0.840,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.273,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.085,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.183,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.157,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.192,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.165,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.207,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.083,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.055,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.180,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.235,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.204,"19b","Hough Lake Group","Pecors Formation: siltstone, argillite, wacke, minor sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.204,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.034,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.157,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.174,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.274,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.169,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.128,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.054,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.129,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.625,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.510,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.476,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.167,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.107,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.198,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.373,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.075,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.325,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.232,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.043,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.017,1.863,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.431,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.049,"30a","Felsic intrusive rocks","Grantic, alkali granite, granodiorite, quartz feldspar porphyry; minor related volcanic rocks (1.4 to 1.5 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.002,0.699,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.248,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.346,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.123,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.082,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.363,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.251,"20c","Quirke Lake Group","Bruce Formation: conglomerate with minor sandstone and siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.071,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.789,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.398,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.357,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.005,0.488,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.379,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.085,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.235,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.092,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.645,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.235,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.211,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.043,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.263,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.068,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.002,0.463,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.793,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.293,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.083,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.218,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.072,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.111,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,0.750,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.043,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.347,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.004,0.782,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.095,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.066,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.100,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.638,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.079,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.089,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.167,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.039,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.312,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.244,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.010,0.947,"21a","Cobalt Group","Bar River Formation: quartz sandstone, hematitic sandstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.203,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.235,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.170,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.111,"20b","Quirke Lake Group","Espanola Formation: limestone, dolostone, siltstone, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.059,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.406,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.153,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.085,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.140,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.481,"23d","Mafic and related intrusive rocks","Nipissing sills (2219 Ma): diabase sills, dikes and related granophyre",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.116,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.117,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,0.628,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.214,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.288,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.431,"20a","Quirke Lake Group","Serpent Formation: quartz-feldspar sandstone, sandstone with minor siltstone, calcareous siltstone and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.112,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.023,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.026,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.149,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.132,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.053,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.326,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.103,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.090,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.111,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.182,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.049,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.027,1.141,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.119,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.470,"21d","Cobalt Group","Gowganda Formation: conglomerate, sandstone, siltstone, argillite",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.065,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.148,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.059,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.060,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.198,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.192,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.092,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.011,1.819,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.099,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.154,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"21c","Cobalt Group","Lorrain Formation: quartz sandstone, minor conglomerate, siltstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.001,0.221,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.101,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.085,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.044,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.070,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.083,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.272,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.332,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.096,"19a","Hough Lake Group","Mississagi Formation: quartz-feldspar sandstone, argillite and conglomerate",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.255,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.005,0.507,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.249,"55b",null,null,"Shale, limestone, dolostone, siltstone","Georgian bay Fm.; Blue Mountain Fm.; Billings Fm.; Collingwood Mb.; Eastview Mb.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.001,0.262,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.099,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.509,10.457,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.116,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.022,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.244,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.169,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.110,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.077,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,0.746,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.078,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.077,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.411,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.281,"21b","Cobalt Group","Gordon Lake Formation: siltstone, argillite, sandstone",null,null,"PROTEROZOIC","PALEOPROTEROZOIC (1.6 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.093,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.027,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.006,0.406,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.047,1.910,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.130,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.039,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.134,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.051,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.057,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.079,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.156,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.183,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.651,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.000,0.051,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.136,4.835,"55b",null,null,"Shale, limestone, dolostone, siltstone","Georgian bay Fm.; Blue Mountain Fm.; Billings Fm.; Collingwood Mb.; Eastview Mb.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.004,0.811,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.036,2.538,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.200,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.280,"30a","Felsic intrusive rocks","Grantic, alkali granite, granodiorite, quartz feldspar porphyry; minor related volcanic rocks (1.4 to 1.5 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.028,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.028,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.234,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,0.491,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.286,"30a","Felsic intrusive rocks","Grantic, alkali granite, granodiorite, quartz feldspar porphyry; minor related volcanic rocks (1.4 to 1.5 Ga)",null,null,"PROTEROZOIC","MESO-TO PALEOPROTEROZOIC (0.9 to 2.5 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.058,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.008,0.670,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,1.007,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.192,7.974,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.314,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.188,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.296,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.046,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.154,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.310,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.020,0.605,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.032,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.372,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.284,"37c","Mafic intrusive rocks","Gabbro, diorite, ultramafic rocks, granophyre",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.157,5.812,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.138,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.295,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.007,0.451,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.131,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.042,0.911,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.107,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.131,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.002,0.253,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.045,"56b",null,null,"Sandstone, shale, dolostone, siltstone","Lockport Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.078,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.481,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.133,4.467,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.127,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.145,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.258,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.036,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.009,1.735,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.008,0.603,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.055,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.002,0.292,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.104,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.091,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.036,1.499,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.096,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.003,0.262,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.304,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.117,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.047,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.020,1.199,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.024,0.601,"56a",null,null,"Sandstone, shale, dolostone, siltstone","Guelph Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.320,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.046,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.008,1.166,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.128,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.147,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.186,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.142,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.307,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.421,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.437,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.240,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.061,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.074,"38","Carbonatite - alkalic intrusive suite (450 to 600 Ma)","carbonatite, nepheline syenite, alkalic syenite, ijolite, fenite; associated mafic and ultramafic intrusions",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,null]
[0.000,0.069,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.042,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.361,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.222,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.166,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.141,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.153,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.009,1.052,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.012,0.497,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.002,0.466,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.012,0.944,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.070,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.077,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.071,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.116,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.132,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.171,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.033,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.066,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.002,0.275,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.070,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.044,4.317,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.555,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.164,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.173,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.053,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.099,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.202,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.091,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.024,2.060,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.004,1.001,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.116,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.077,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.099,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.013,0.759,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.038,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.009,0.729,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.010,0.814,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.185,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.159,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.309,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.006,0.708,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.174,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.101,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.080,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.104,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.007,0.727,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.140,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.120,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.167,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.055,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.136,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.015,0.758,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.024,1.563,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.165,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.447,6.196,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.502,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.185,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.143,7.392,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.000,0.101,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.004,0.439,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.264,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.007,0.806,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,0.442,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.426,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.235,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.349,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.350,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.152,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.001,0.168,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.144,"55b",null,null,"Shale, limestone, dolostone, siltstone","Georgian bay Fm.; Blue Mountain Fm.; Billings Fm.; Collingwood Mb.; Eastview Mb.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.001,0.139,"55b",null,null,"Shale, limestone, dolostone, siltstone","Georgian bay Fm.; Blue Mountain Fm.; Billings Fm.; Collingwood Mb.; Eastview Mb.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.014,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.006,0.594,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.248,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.259,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.084,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.143,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.169,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.149,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.011,0.920,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.099,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.087,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.209,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.006,0.522,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.226,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.170,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.252,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.050,2.970,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.096,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.271,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.162,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.150,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.216,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.148,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.258,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.097,2.667,"55b",null,null,"Shale, limestone, dolostone, siltstone","Georgian bay Fm.; Blue Mountain Fm.; Billings Fm.; Collingwood Mb.; Eastview Mb.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.002,0.297,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.201,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.271,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.150,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.129,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,0.502,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.099,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.181,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.074,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.130,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.072,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.129,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.006,0.413,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.079,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.139,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.361,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.069,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.056,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.003,0.421,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.168,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.523,7.029,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.002,0.262,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.018,2.128,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.324,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.003,0.464,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.007,0.731,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.126,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.122,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.206,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.096,15.069,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.109,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.163,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.108,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.295,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.139,"56a",null,null,"Sandstone, shale, dolostone, siltstone","Guelph Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.004,0.477,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.001,0.136,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.022,1.415,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.207,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.001,0.146,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.180,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.086,"56a",null,null,"Sandstone, shale, dolostone, siltstone","Guelph Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.011,0.612,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.001,0.201,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.240,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.152,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.141,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.085,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.127,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.011,0.448,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.073,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.002,0.221,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.300,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.262,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,0.549,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.002,0.296,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.203,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.003,0.411,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.121,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.149,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.009,1.811,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.000,0.148,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.556,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.192,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,0.555,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.084,3.145,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.119,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.149,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.127,"56a",null,null,"Sandstone, shale, dolostone, siltstone","Guelph Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.211,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.307,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.053,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.161,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.503,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.143,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.072,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.171,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.173,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.135,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.119,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.062,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.100,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.098,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.108,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.098,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.704,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.370,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.623,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.153,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.250,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.061,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.062,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.117,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.089,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,0.518,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.017,0.523,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.080,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.142,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.004,0.612,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.190,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.111,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.087,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.011,0.491,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.215,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.107,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.136,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.043,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.050,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.084,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.280,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.319,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.076,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.063,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.155,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.013,1.838,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.011,1.828,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.144,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.259,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.000,0.033,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.017,1.888,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.138,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.208,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.742,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.164,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.113,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.222,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.120,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.103,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.002,0.403,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.223,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.178,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.386,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.079,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.043,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.092,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.371,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.245,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.157,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.175,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.429,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.261,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.810,10.033,"56a",null,null,"Sandstone, shale, dolostone, siltstone","Guelph Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.075,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.070,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.284,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.169,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.084,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.047,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.011,0.658,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.244,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.177,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.303,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.069,2.731,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.136,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.137,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.066,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.059,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.044,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.321,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.178,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.125,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.089,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.011,1.391,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.195,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.091,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.174,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,0.308,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.416,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.304,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.002,0.317,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.395,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.001,0.146,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.102,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.203,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.240,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.193,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.096,10.526,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.033,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.077,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.348,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.042,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.212,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.044,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.309,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.116,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.083,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.225,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.140,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.209,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.010,0.538,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.076,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.125,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.133,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.091,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.223,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.146,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.323,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.414,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.107,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.152,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.260,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.996,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.183,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.234,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.379,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.167,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.171,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.206,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.124,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.054,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.181,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.054,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.159,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.069,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.168,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.021,1.636,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.014,1.224,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.046,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.097,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.308,10.077,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.132,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.063,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.203,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.138,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.086,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.375,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.105,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.127,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.021,0.940,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.544,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.246,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.296,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.417,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.453,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.561,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.502,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.171,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.021,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.053,4.136,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.304,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.238,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.165,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.147,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.179,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,1.332,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.000,0.139,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.303,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.073,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,1.196,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.111,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.127,4.129,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.616,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.001,0.236,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.211,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.098,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.173,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.121,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,0.969,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.029,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.036,2.423,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.113,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.256,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.132,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.006,1.133,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.339,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.231,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.245,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.122,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.027,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.599,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.105,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.376,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.001,0.192,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.236,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.229,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.160,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.298,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.044,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.094,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.147,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.061,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.108,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.074,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.096,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,1.025,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.056,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.664,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.025,1.069,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.524,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.018,2.122,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.012,1.240,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.042,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.075,8.400,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.015,2.835,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.345,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.482,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.013,1.474,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.023,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.000,0.076,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.126,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,1.540,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.154,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.103,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.457,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.091,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.134,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.033,"40","Mafic rocks","amphibolite, gabbro, diorite, mafic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.198,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.202,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.019,0.675,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.093,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.273,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.360,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.283,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.035,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.106,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.073,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.058,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.418,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.217,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.150,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.228,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.142,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.522,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.091,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.294,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.136,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.008,1.684,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.010,3.160,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.402,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.087,7.782,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.208,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,1.407,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.346,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.042,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.009,1.057,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.066,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.511,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.189,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.376,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.091,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.030,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.060,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.137,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.028,1.569,"54b",null,null,"Limestone, dolostone, shale, arkose, sandstone","Chazy Gp., Rockcliffe Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.162,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.053,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.299,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.020,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.152,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.071,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.239,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.402,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.303,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.534,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.521,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.083,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.000,0.082,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.055,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.045,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.323,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.093,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.307,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.049,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.149,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.043,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.484,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.203,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.100,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.076,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.108,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.169,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.192,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.124,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.076,5.082,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.379,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.006,0.672,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.109,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.014,1.785,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.072,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.051,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.095,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.000,0.020,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.029,0.712,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.028,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.381,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.397,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.125,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.049,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.736,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.066,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.122,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.065,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.411,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.061,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.139,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,1.088,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.145,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.298,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.000,0.097,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.114,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.065,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.082,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.272,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.098,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.099,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.878,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.269,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.645,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.164,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.231,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.358,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.251,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.009,1.055,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.010,1.167,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.056,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.160,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.009,1.144,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.110,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.057,4.855,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.302,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.196,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.067,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.047,2.252,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.090,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.000,0.022,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.009,0.587,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.321,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.020,2.942,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.112,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.304,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.097,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.002,0.259,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.194,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.025,2.527,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.011,0.747,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.487,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,0.624,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.120,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.008,0.368,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.224,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.274,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.120,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.008,0.480,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.190,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.001,0.182,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.296,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.012,1.640,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,0.722,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.012,1.080,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.056,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.185,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.194,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.095,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.315,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.143,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.241,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.158,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.123,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.355,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.204,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.067,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.178,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.190,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.084,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.135,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.185,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.017,2.501,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.200,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.037,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.179,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.056,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.159,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.003,0.392,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.023,3.643,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.094,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.183,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.113,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.020,2.627,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.645,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.141,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.140,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.002,0.298,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.203,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.207,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.402,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.006,0.889,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.078,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.213,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.073,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.055,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.071,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.081,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.389,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.242,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.062,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.227,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.198,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.054,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.072,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.189,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.186,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.060,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.005,0.784,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.091,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.034,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.318,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.110,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.002,0.180,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.043,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.063,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.063,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.626,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.007,0.407,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.292,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.183,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.035,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.128,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.149,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.037,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.426,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.153,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.006,0.614,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.120,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.306,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[2.076,15.851,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.356,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.080,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.300,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.216,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.325,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.081,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.000,0.080,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.021,2.675,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.097,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.112,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.458,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.147,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.001,0.112,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.019,0.564,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.107,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.142,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.049,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.036,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.039,1.315,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.213,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.034,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.001,0.297,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.265,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.071,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.071,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.015,2.765,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.219,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.093,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.185,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.102,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.000,0.221,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.143,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.164,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.046,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.568,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.190,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.051,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.227,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.011,1.659,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.064,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.668,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.704,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.130,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.076,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.273,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.218,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.130,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.604,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.117,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,0.603,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.002,0.207,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.233,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.106,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.009,0.941,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.008,0.641,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.325,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.054,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.064,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.053,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.133,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.041,5.066,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.168,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,1.057,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.348,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.007,0.700,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.295,"42","Anorthosite and alkalic igneous rocks","anorthosite, anorthositic gabbro, gabbro and related gneisses, nepheline syenite, alkalic syenite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.003,0.640,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.451,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.192,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.257,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.189,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.182,"39","Gneisses of metasedimentary origin","quartzofeldspathic gneisses, pelitic to semi-pelitic gneisses, calc-silicate gneisses, minor quartzite, minor marble and marble breccia",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.118,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.238,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.186,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.127,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.038,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.271,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.135,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.040,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.764,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.001,0.207,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.048,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.192,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.110,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.119,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.081,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.084,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.417,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.015,2.210,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.055,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.371,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.000,0.083,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.180,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.076,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.137,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.050,"41","Migmatitic rocks and gneisses of undetermined protolith","commonly layered biotite gneisses and migmatites; locally includes quartzofeldspathic gneisses, orthogneisses, paragneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.097,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.268,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.088,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.215,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.063,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.009,0.670,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.009,1.415,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.099,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.152,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.075,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.011,1.566,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.049,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.135,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.044,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.174,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.132,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.286,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.611,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.031,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.196,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.068,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.089,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.186,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.112,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.102,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.001,0.321,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.102,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.084,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.034,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.262,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.123,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.180,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.231,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.006,0.556,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.092,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.038,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.565,8.150,"55b",null,null,"Shale, limestone, dolostone, siltstone","Georgian bay Fm.; Blue Mountain Fm.; Billings Fm.; Collingwood Mb.; Eastview Mb.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.002,0.397,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.062,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.269,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.093,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.018,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.003,0.358,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.060,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.040,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.028,1.898,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.140,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.083,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.100,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.178,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.172,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.010,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.119,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.042,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.081,"43","Felsic igneous rocks","tonalite, granodiorite, monzonite, granite, syenite; derived gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Gneiss Belt",null]
[0.000,0.052,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.260,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.076,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.263,9.998,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.020,1.879,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.058,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.497,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.052,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.019,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.003,0.456,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.144,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.169,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.186,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.059,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.148,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.010,0.880,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.052,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.067,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.053,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.014,2.128,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.036,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.418,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.129,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.026,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.339,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.342,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.103,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.536,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.236,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.341,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.075,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.149,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.096,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.003,0.413,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.523,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.281,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.147,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.433,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.031,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.124,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.282,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.088,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.339,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.012,0.961,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.474,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.183,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.070,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.021,2.506,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.142,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.038,1.663,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.255,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.120,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.148,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.268,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.370,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.336,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.430,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.025,1.997,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.111,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.104,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.022,2.779,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.122,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.050,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.017,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.066,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.010,1.910,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.124,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.140,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.161,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.472,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.092,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.101,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.007,0.926,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.066,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.029,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.108,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.152,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.057,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.202,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.157,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.079,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.087,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.135,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.028,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.104,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.438,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.248,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.016,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.059,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.245,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.053,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.147,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.056,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.024,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.232,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.085,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.616,7.379,"57c",null,null,"Sandstone, shale, dolostone, siltstone","Salina Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","UPPER SILURIAN",null,null,null]
[0.000,0.087,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.125,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.225,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.009,1.333,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.261,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.764,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.029,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.033,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.005,0.947,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.180,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.084,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.198,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.085,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.138,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.188,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.336,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.170,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.169,"48","Alkalic plutonic rocks","nepheline syenite, alkalic syenite, fenite; associated mafic, ultramafic and carbonatitic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.077,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.294,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.032,3.703,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.375,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.179,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.127,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.107,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.024,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.023,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.048,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.201,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.107,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.018,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.034,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.049,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.429,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.123,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.092,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.008,0.865,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.006,0.564,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.024,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.190,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.151,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.266,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.003,0.598,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.047,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.272,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.092,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.019,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.008,0.998,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.209,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.138,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.144,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.118,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.123,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.135,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.006,0.643,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.077,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.040,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.180,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.003,0.380,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.192,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.002,0.410,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.203,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.348,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.260,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.130,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.219,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.072,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.374,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.175,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.074,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.037,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.364,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.011,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.172,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.273,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.248,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.058,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.277,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.297,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.074,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.140,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.260,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.358,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.026,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.193,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.103,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.111,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.184,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.036,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.052,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.088,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.043,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.076,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.115,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.209,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.041,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.016,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.060,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.002,0.251,"44","Mafic to felsic metavolcanic rocks","flows, tuffs, breccias, minor iron formation, minor metasedimentary rocks; includes reworked pyroclastic units, amphibolite",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.145,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.200,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.165,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.164,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.127,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.094,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.059,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.030,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.040,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.008,0.775,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.044,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.158,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.047,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.055,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.035,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.042,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.046,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.003,0.316,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.035,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.060,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.196,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.016,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.030,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.030,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.042,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.022,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.196,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.125,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.047,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.038,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.020,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.042,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.026,"51","Tectonite","tectonites, straight gneisses, porphyroclastic gneisses, unsubdivided gneisses in major deformation zones, mylonites, protomylonites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville",null,null]
[0.001,0.245,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.042,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.000,0.035,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.004,0.944,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.031,"37a","Mafic intrusive rocks","Grenville swarm (~575 Ma): diabase dikes",null,null,"PROTEROZOIC","EARLY PALEOZOIC TO NEOPROTEROZOIC (0.45 to 0.9 Ga)",null,null,"Southern and Superior",null,"A generalized distribution of diabase dikes is shown.  Some individual swarms occur in more than one geological province."]
[0.006,0.732,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.030,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.158,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.026,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.008,0.894,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.013,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.137,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.149,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.092,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.028,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.108,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.070,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.030,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.002,0.240,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.058,4.360,"57a",null,null,"Sandstone, shale, dolostone, siltstone","Bass Island Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","UPPER SILURIAN",null,null,null]
[0.000,0.030,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.049,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.218,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.034,"49","Mafic to ultramafic plutonic rocks","diorite, gabbro, peridotite, pyroxenite, anorthosite, derived metamorphic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.932,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.025,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.128,6.254,"58a",null,null,"Sandstone, dolostone, limestone","Bois Blanc Fm.; Oriskany Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.001,0.283,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.054,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.057,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.610,7.824,"59d",null,null,"Limestone, dolostone, shale","Detroit River Gp.; Onondage Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.026,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.024,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.179,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.068,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.038,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.002,0.271,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.212,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.033,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.175,"50a","Late felsic plutonic rocks","granitic and syenitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.041,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.037,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.021,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.031,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.016,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.086,"55a",null,null,"Shale, limestone, dolostone, siltstone","Queenston Fm.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","UPPER ORDOVICIAN",null,null,null]
[0.000,0.040,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.157,"56a",null,null,"Sandstone, shale, dolostone, siltstone","Guelph Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.055,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.006,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.000,0.118,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.057,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.026,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.000,0.017,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.245,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.002,0.333,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.001,0.170,"52",null,null,"Conglomerate, sandstone, shale, dolostone","Potsdam Gp.; Nepean Fm.; Covey Hill Fm.","PHANEROZOIC","PALEOZOIC","CAMBRIAN",null,null,null,null]
[0.001,0.172,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.001,0.207,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.060,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.044,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.089,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.002,0.229,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.079,"50","Late felsic plutonic rocks","granodiorite, granite, syenite, pegmatite, alkalic granite, migmatitic gneisses",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.004,0.560,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.085,"53",null,null,"Dolostone, sandstone","Beekmantown Gp.","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","LOWER ORDOVICIAN",null,null,null]
[0.000,0.017,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.022,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.018,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.127,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.154,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.023,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.065,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.029,0.920,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.000,0.047,"45","Clastic metasedimentary rocks","conglomerate, wacke, quartz arenite, arkose, limestone, siltstone, chert, minor iron formation, minor metavolcanic rocks",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.015,"46","Carbonate metasedimentary rocks","marble, calc-silicate rocks, skarn, tectonic breccias",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.000,0.022,"47","Early felsic plutonic rocks","granodiorite, tonalite, trondhjemite, monzogranite, syenogranite; derived gneisses and migmatites",null,null,"PROTEROZOIC","NEO-TO MESOPROTEROZOIC (0.57 to 1.6 Ga)",null,null,"Grenville","Central Metasedimentary Belt",null]
[0.012,0.488,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.002,0.363,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.017,2.183,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.843,10.046,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.002,0.190,"54a",null,null,"Limestone, dolostone, shale, arkose, sandstone","Ottawa Gp.; Simcoe Gp.; Shadow Lake  Fm","PHANEROZOIC","PALEOZOIC","ORDOVICIAN","MIDDLE ORDOVICIAN",null,null,null]
[0.001,0.168,"59d",null,null,"Limestone, dolostone, shale","Detroit River Gp.; Onondage Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.003,0.288,"59d",null,null,"Limestone, dolostone, shale","Detroit River Gp.; Onondage Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.005,0.797,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.001,0.132,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.065,2.928,"56b",null,null,"Sandstone, shale, dolostone, siltstone","Lockport Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.278,5.874,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.010,2.246,"56d",null,null,"Sandstone, shale, dolostone, siltstone","Clinton Gp.; Cataract Gp.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.468,6.402,"60a",null,null,"Shale","Kettle Point Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","UPPER DEVONIAN",null,null,null]
[0.001,0.106,"56c",null,null,"Sandstone, shale, dolostone, siltstone","Amabel Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.103,"56a",null,null,"Sandstone, shale, dolostone, siltstone","Guelph Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.000,0.027,"56a",null,null,"Sandstone, shale, dolostone, siltstone","Guelph Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","MIDDLE AND LOWER SILURIAN",null,null,null]
[0.028,3.146,"57b",null,null,"Sandstone, shale, dolostone, siltstone","Bertie Fm.","PHANEROZOIC","PALEOZOIC","SILURIAN","UPPER SILURIAN",null,null,null]
[0.018,0.667,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.006,1.112,"58a",null,null,"Sandstone, dolostone, limestone","Bois Blanc Fm.; Oriskany Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","LOWER DEVONIAN",null,null,null]
[0.017,1.069,"59d",null,null,"Limestone, dolostone, shale","Detroit River Gp.; Onondage Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.025,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.004,0.379,"59d",null,null,"Limestone, dolostone, shale","Detroit River Gp.; Onondage Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.007,0.487,"61",null,null,"Shale: Port Lambton Gp.",null,"PHANEROZOIC","PALEOZOIC","MISSISSIPPIAN TO DEVONIAN","LOWER CRETACEOUS AND MIDDLE JURASSIC",null,null,null]
[0.001,0.099,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.081,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.001,0.163,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.045,1.603,"59b",null,null,"Limestone, dolostone, shale","Marcellus Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.001,0.213,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.072,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.066,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.078,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.075,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.060,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.002,0.221,"59b",null,null,"Limestone, dolostone, shale","Marcellus Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.013,0.572,"59b",null,null,"Limestone, dolostone, shale","Marcellus Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.001,0.113,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.003,0.298,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.002,0.222,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.078,1.962,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.012,"60a",null,null,"Shale","Kettle Point Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","UPPER DEVONIAN",null,null,null]
[0.000,0.073,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.010,0.441,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.019,0.770,"59a",null,null,"Limestone, dolostone, shale","Hamilton Gp.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.111,2.171,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.082,1.896,"59d",null,null,"Limestone, dolostone, shale","Detroit River Gp.; Onondage Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.002,0.222,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.000,0.026,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.004,0.292,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]
[0.008,0.343,"59c",null,null,"Limestone, dolostone, shale","Dundee Fm.","PHANEROZOIC","PALEOZOIC","DEVONIAN","MIDDLE DEVONIAN",null,null,null]