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["1",1.01,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Elk Park Plutonic Suite, Mount Holly","Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["10",10.00,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN",null,null,null,null,null,"Unseparated schist, gneiss, and migmatite; may include rocks as young as","Silurian. Contains detrital zircon populations distinct from those of units 7","and 9. Unnamed gneiss and schist east of Brindle Creek fault",null,null,null,null,null,null,null,null,null,null,null,null]
["11",11.00,"AXIAL REALM","Southern Appalachians","GOOCHLAND DOMAIN","Metamorphic rocks of unknown origin",null,null,null,null,"High-grade paragneiss, orthogneiss, and amphibolite of unknown affinity that","structurally overlie ca. 1 Ga basement of unit 1. Locally contains small bodies","of Devonian orthogneiss. Maidens Gneiss",null,null,null,null,null,null,null,null,null,null,null,null]
["12b_VOL_MAFIC",12.00,"AXIAL REALM","Northern Appalachians","Peri-Laurentian Arc System (Iapetan)",null,null,null,null,null,"Mainly Lower to Upper Ordovician ophiolitic and magmatic-arc rocks with","associated sedimentary rocks; older strata contain Laurentian fauna. Volcanic","rocks (mafic). Hawley Formation, Snooks Arm Group",null,null,null,null,null,null,null,null,null,null,null,null]
["14a",13.01,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,null,"unconformity","Younger magmatic-arc/back-arc and overlying sequences ? Neoproterozoic to Lower","Paleozoic magmatic sequences with associated clastic sedimentary rocks;","generally <580 Ma. Albemarle Group",null,null,null,null,null,null,null,null,null,null,null,null]
["14a_INT_FELSIC",13.04,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,null,"unconformity","Younger magmatic-arc/back-arc and overlying sequences ? Neoproterozoic to Lower","Paleozoic magmatic sequences with associated clastic sedimentary rocks;","generally <580 Ma. Intrusive rocks (felsic). Albemarle Group",null,null,null,null,null,null,null,null,null,null,null,null]
["14a_VOL_FELSIC",13.02,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,null,"unconformity","Younger magmatic-arc/back-arc and overlying sequences ? Neoproterozoic to Lower","Paleozoic magmatic sequences with associated clastic sedimentary rocks;","generally <580 Ma. Volcanic rocks (felsic). Albemarle Group",null,null,null,null,null,null,null,null,null,null,null,null]
["14a_VOL_MAFIC",13.03,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,null,"unconformity","Younger magmatic-arc/back-arc and overlying sequences ? Neoproterozoic to Lower","Paleozoic magmatic sequences with associated clastic sedimentary rocks;","generally <580 Ma. Volcanic rocks (mafic). Albemarle Group",null,null,null,null,null,null,null,null,null,null,null,null]
["14b",13.05,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,"unconformity",null,"Older magmatic arc ? Neoproterozoic magmatic-arc rocks with associated clastic","sedimentary rocks; generally >580 Ma. Virgilina Formation",null,null,null,null,null,null,null,null,null,null,null,null,null]
["14b_INT_FELSIC",13.08,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,"unconformity",null,"Older magmatic arc ? Neoproterozoic magmatic-arc rocks with associated clastic","sedimentary rocks; generally >580 Ma. Intrusive rocks (felsic). Virgilina","Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["14b_INT_MAFIC",13.09,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,"unconformity",null,"Older magmatic arc ? Neoproterozoic magmatic-arc rocks with associated clastic","sedimentary rocks; generally >580 Ma. Intrusive rocks (mafic). Virgilina","Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["14b_VOL_FELSIC",13.06,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,"unconformity",null,"Older magmatic arc ? Neoproterozoic magmatic-arc rocks with associated clastic","sedimentary rocks; generally >580 Ma. Volcanic rocks (felsic). Virgilina","Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["14b_VOL_MAFIC",13.07,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,"unconformity",null,"Older magmatic arc ? Neoproterozoic magmatic-arc rocks with associated clastic","sedimentary rocks; generally >580 Ma. Volcanic rocks (mafic). Virgilina","Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["14c",13.10,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,null,null,"Unseparated magmatic and clastic sedimentary sequences. Spring Hope Formation",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["14d_MAFIC_OPH",13.11,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Suprastructural magmatic-arc and associated rocks",null,null,null,null,"Mafic-ultramafic complex of probable oceanic origin. Mafic components of an","ophiolite and areas of isolated ultramafic and metaultramafic bodies. Complex","of Halifax County",null,null,null,null,null,null,null,null,null,null,null,null]
["15",14.01,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Infrastructural magmatic-arc/oceanic rocks",null,null,null,null,"Gneiss, schist, metavolcanic rocks, and amphibolite, with local mélange and","ultramafic bodies. Locally yield Neoproterozoic to Cambrian radiometric ages.","Battleground Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["15_INT_FELSIC",14.04,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Infrastructural magmatic-arc/oceanic rocks",null,null,null,null,"Gneiss, schist, metavolcanic rocks, and amphibolite, with local mélange and","ultramafic bodies. Locally yield Neoproterozoic to Cambrian radiometric ages.","Intrusive rocks (felsic). Battleground Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["15_INT_MAFIC",14.05,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Infrastructural magmatic-arc/oceanic rocks",null,null,null,null,"Gneiss, schist, metavolcanic rocks, and amphibolite, with local mélange and","ultramafic bodies. Locally yield Neoproterozoic to Cambrian radiometric ages.","Intrusive rocks (mafic). Battleground Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["15_SHEAR",14.07,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Infrastructural magmatic-arc/oceanic rocks",null,null,null,null,"Gneiss, schist, metavolcanic rocks, and amphibolite, with local mélange and","ultramafic bodies. Locally yield Neoproterozoic to Cambrian radiometric ages.","Shear zone. Battleground Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["15_UMAFIC_OPH",14.06,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Infrastructural magmatic-arc/oceanic rocks",null,null,null,null,"Gneiss, schist, metavolcanic rocks, and amphibolite, with local mélange and","ultramafic bodies. Locally yield Neoproterozoic to Cambrian radiometric ages.","Ultramafic components of an ophiolite and areas of isolated ultramafic and","metaultramafic bodies. Battleground Formation",null,null,null,null,null,null,null,null,null,null,null]
["15_VOL_FELSIC",14.02,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Infrastructural magmatic-arc/oceanic rocks",null,null,null,null,"Gneiss, schist, metavolcanic rocks, and amphibolite, with local mélange and","ultramafic bodies. Locally yield Neoproterozoic to Cambrian radiometric ages.","Volcanic rocks (felsic). Battleground Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["15_VOL_MAFIC",14.03,"PERI-GONDWANAN REALM","Southern Appalachians","CAROLINIA","Infrastructural magmatic-arc/oceanic rocks",null,null,null,null,"Gneiss, schist, metavolcanic rocks, and amphibolite, with local mélange and","ultramafic bodies. Locally yield Neoproterozoic to Cambrian radiometric ages.","Volcanic rocks (mafic). Battleground Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["1_AMCS_BLUE",1.09,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Anorthosite-mangerite-charnockite","suite rocks (gabbro, anorthosite). Elk Park Plutonic Suite, Mount Holly","Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null]
["1_AMCS_RED",1.08,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Anorthosite-mangerite-charnockite","suite rocks (mangerite, charnockite, granite). Elk Park Plutonic Suite, Mount","Holly Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null]
["1_INT_FELSIC",1.03,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Intrusive rocks (felsic). Elk Park","Plutonic Suite, Mount Holly Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["1_INT_MAFIC",1.04,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Intrusive rocks (mafic). Elk Park","Plutonic Suite, Mount Holly Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["1_MAFIC_OPH",1.05,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Mafic components of an ophiolite and","areas of isolated ultramafic and metaultramafic bodies. Elk Park Plutonic","Suite, Mount Holly Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null]
["1_ORTHOGNEISS",1.07,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Orthogneiss. Elk Park Plutonic","Suite, Mount Holly Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["1_PARAGNEISS",1.10,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Paragneiss and metavolcanic rock.","Elk Park Plutonic Suite, Mount Holly Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["1_SHEAR",1.06,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Shear zone. Elk Park Plutonic Suite,","Mount Holly Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["1_VOL_FELSIC",1.02,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Volcanic rocks (felsic). Elk Park","Plutonic Suite, Mount Holly Complex, Disappointment Hill Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["1a",1.11,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Grenville basement of Laurentia including ca. 1 Ga inliers within the hinterland",null,null,null,null,null,"Gneiss, schist, and plutonic rocks affected by the Grenville Orogeny and","associated post-orogenic granitoid bodies. Basement components >= 1.5 Ga.",null,null,null,null,null,null,null,null,null,null,null,null,null]
["2",2.01,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus rift facies",null,null,null,null,null,"Encratonic magmatic rocks (ca. 750?680 Ma) and associated sedimentary rocks;","southern Appalachians. Grandfather Mountain Formation, Crossnore Complex",null,null,null,null,null,null,null,null,null,null,null,null,null]
["23",15.00,"Southern Appalachians","Mid-Paleozoic clastic wedge and time-equivalent rocks",null,null,null,null,null,"on Laurentian Realm","Middle Ordovician to Lower Devonian, generally thin, shallow marine to","terrestrial, clastic sedimentary wedge with subordinate carbonate rocks and","chert. Includes unit 33 in southernmost Appalachians and carbonate rocks that","are either the cratonward equivalent of unit 6 or lie unconformably on rocks","deformed during the Taconic Orogeny. Tuscarora Formation, Tonoloway Formation,","Salina Group",null,null,null,null,null,null,null,null,null]
["24",16.00,"Southern Appalachians","Extensional basin and cover rocks",null,null,null,null,null,"on southern Laurentian Realm","Upper Ordovician to Lower Mississippian clastic sedimentary rocks and","diamictite lying unconformably on unit 4. Talladega Group",null,null,null,null,null,null,null,null,null,null,null,null,null]
["25_INT_FELSIC",17.01,"Southern Appalachians","Mid-Paleozoic magmatism mainly in Axial Realm",null,null,null,null,null,null,"Middle Ordovician to Lower Silurian plutonic rocks and orthogneiss mainly","confined to the Piedmont domain. Intrusive rocks (felsic). Shelton Granite","Gneiss, Cortlandt complex",null,null,null,null,null,null,null,null,null,null,null,null]
["25_INT_MAFIC",17.02,"Southern Appalachians","Mid-Paleozoic magmatism mainly in Axial Realm",null,null,null,null,null,null,"Middle Ordovician to Lower Silurian plutonic rocks and orthogneiss mainly","confined to the Piedmont domain. Intrusive rocks (mafic). Shelton Granite","Gneiss, Cortlandt complex",null,null,null,null,null,null,null,null,null,null,null,null]
["26",18.00,"Southern Appalachians","Marine basin",null,null,null,null,null,"on Axial Realm","Upper Ordovician slate, schist, quartzite, and conglomerate with minor","metavolcanic rocks. Arvonia Formation",null,null,null,null,null,null,null,null,null,null,null,null,null]
["2_INT_FELSIC",2.03,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus rift facies",null,null,null,null,null,"Encratonic magmatic rocks (ca. 750?680 Ma) and associated sedimentary rocks;","southern Appalachians. Intrusive rocks (felsic). Grandfather Mountain","Formation, Crossnore Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["2_VOL_FELSIC",2.02,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus rift facies",null,null,null,null,null,"Encratonic magmatic rocks (ca. 750?680 Ma) and associated sedimentary rocks;","southern Appalachians. Volcanic rocks (felsic). Grandfather Mountain Formation,","Crossnore Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["3",3.01,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus rift facies",null,null,null,null,null,"Neoproterozoic to Cambrian mainly clastic sedimentary rocks filling rift basins","and associated magmatism related to Iapetan rifting. Locally contains fragments","of oceanic crust. Ocoee Supergroup, Catoctin Formation, Pinnacle Formation,","Tibbit Hill Formation, Bateau Formation, Lynchburg Formation",null,null,null,null,null,null,null,null,null,null,null]
["32c",19.01,"Syn-Acadian sedimentary and magmatic rocks",null,null,null,null,null,null,null,"Upper Silurian to Lower Devonian plutonic rocks confined to Carolinia.","Concord-Salisbury Plutonic Suite",null,null,null,null,null,null,null,null,null,null,null,null,null]
["32c_INT_FELSIC",19.02,"Syn-Acadian sedimentary and magmatic rocks",null,null,null,null,null,null,null,"Upper Silurian to Lower Devonian plutonic rocks confined to Carolinia.","Intrusive rocks (felsic). Concord-Salisbury Plutonic Suite",null,null,null,null,null,null,null,null,null,null,null,null,null]
["32c_INT_MAFIC",19.03,"Syn-Acadian sedimentary and magmatic rocks",null,null,null,null,null,null,null,"Upper Silurian to Lower Devonian plutonic rocks confined to Carolinia.","Intrusive rocks (mafic). Concord-Salisbury Plutonic Suite",null,null,null,null,null,null,null,null,null,null,null,null,null]
["33",20.00,"Southern Appalachians","Acadian clastic wedge",null,null,null,null,null,"on Laurentian Realm","Mainly Middle to Upper Devonian dominantly terrestrial clastic sedimentary","rocks deposited on the west flank (Catskill clastic wedge) and on interior","portions of the Appalachian Orogen; includes minor carbonate rocks. Hamilton","Group, Genesee Group, Sonyea Group",null,null,null,null,null,null,null,null,null,null,null]
["34",21.01,"Northern Appalachians",null,null,null,null,null,null,null,"Middle Devonian to earliest Carboniferous plutonic rocks. Concord pluton, Deer","Isle Granite, South Mountain batholith, Ackley batholith",null,null,null,null,null,null,null,null,null,null,null,null,null]
["34_INT_FELSIC",21.02,"Northern Appalachians",null,null,null,null,null,null,null,"Middle Devonian to earliest Carboniferous plutonic rocks. Intrusive rocks","(felsic). Concord pluton, Deer Isle Granite, South Mountain batholith, Ackley","batholith",null,null,null,null,null,null,null,null,null,null,null,null]
["35",22.01,"Southern Appalachians",null,null,null,null,null,null,null,"Lower Mississippian to Lower Permian mainly terrestrial clastic sedimentary","rocks that form westward transgressive wedges; includes minor cratonal facies","near base.",null,null,null,null,null,null,null,null,null,null,null,null]
["35a",22.02,"Southern Appalachians",null,null,null,null,null,null,null,"Lower Mississippian to Lower Permian mainly terrestrial clastic sedimentary","rocks that form westward transgressive wedges; includes minor cratonal facies","near base. Mauch Chunk-Pottsville clastic wedge. Mauch Chunk Group",null,null,null,null,null,null,null,null,null,null,null,null]
["35b",22.03,"Southern Appalachians",null,null,null,null,null,null,null,"Lower Mississippian to Lower Permian mainly terrestrial clastic sedimentary","rocks that form westward transgressive wedges; includes minor cratonal facies","near base. Pennington-Lee clastic wedge. Lee Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["35c",22.04,"Southern Appalachians",null,null,null,null,null,null,null,"Lower Mississippian to Lower Permian mainly terrestrial clastic sedimentary","rocks that form westward transgressive wedges; includes minor cratonal facies","near base. Ouachita clastic wedge. Pottsville Group",null,null,null,null,null,null,null,null,null,null,null,null]
["37",23.01,"Alleghanian plutonism",null,null,null,null,null,null,null,"Carboniferous to Permian plutonic rocks. Rolesville batholith, Narragansett","Pier pluton, Sebago pluton",null,null,null,null,null,null,null,null,null,null,null,null,null]
["37_INT_FELSIC",23.02,"Alleghanian plutonism",null,null,null,null,null,null,null,"Carboniferous to Permian plutonic rocks. Intrusive rocks (felsic). Rolesville","batholith, Narragansett Pier pluton, Sebago pluton",null,null,null,null,null,null,null,null,null,null,null,null,null]
["38a",24.01,"Continental rift basins and magmatism related to formation of the Atlantic Basin",null,null,null,null,null,null,null,"Alluvial and lacustrine clastic sedimentary rocks and local basalt, granite,","syenite, gabbro, and minor felsic volcanic rocks; rift basins immediately","preceding formation of the Atlantic Ocean. Newark Supergroup, North Mountain","Basalt, Wolfville Formation",null,null,null,null,null,null,null,null,null,null,null]
["38a_INT_MAFIC",24.03,"Continental rift basins and magmatism related to formation of the Atlantic Basin",null,null,null,null,null,null,null,"Alluvial and lacustrine clastic sedimentary rocks and local basalt, granite,","syenite, gabbro, and minor felsic volcanic rocks; rift basins immediately","preceding formation of the Atlantic Ocean. Intrusive rocks (mafic). Newark","Supergroup, North Mountain Basalt, Wolfville Formation",null,null,null,null,null,null,null,null,null,null,null]
["38a_VOL_MAFIC",24.02,"Continental rift basins and magmatism related to formation of the Atlantic Basin",null,null,null,null,null,null,null,"Alluvial and lacustrine clastic sedimentary rocks and local basalt, granite,","syenite, gabbro, and minor felsic volcanic rocks; rift basins immediately","preceding formation of the Atlantic Ocean. Volcanic rocks (mafic). Newark","Supergroup, North Mountain Basalt, Wolfville Formation",null,null,null,null,null,null,null,null,null,null,null]
["39",25.01,null,null,null,null,null,null,null,null,"Plutonic rocks of unknown age and origin. Greensboro intrusive suite",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["39_INT_FELSIC",25.02,null,null,null,null,null,null,null,null,"Plutonic rocks of unknown age and origin. Intrusive rocks (felsic). Greensboro","intrusive suite",null,null,null,null,null,null,null,null,null,null,null,null,null]
["39_INT_MAFIC",25.03,null,null,null,null,null,null,null,null,"Plutonic rocks of unknown age and origin. Intrusive rocks (mafic). Greensboro","intrusive suite",null,null,null,null,null,null,null,null,null,null,null,null,null]
["3_INT_FELSIC",3.04,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus rift facies",null,null,null,null,null,"Neoproterozoic to Cambrian mainly clastic sedimentary rocks filling rift basins","and associated magmatism related to Iapetan rifting. Locally contains fragments","of oceanic crust. Intrusive rocks (felsic). Ocoee Supergroup, Catoctin","Formation, Pinnacle Formation, Tibbit Hill Formation, Bateau Formation,","Lynchburg Formation",null,null,null,null,null,null,null,null,null,null]
["3_UMAFIC_OPH",3.05,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus rift facies",null,null,null,null,null,"Neoproterozoic to Cambrian mainly clastic sedimentary rocks filling rift basins","and associated magmatism related to Iapetan rifting. Locally contains fragments","of oceanic crust. Ultramafic components of an ophiolite and areas of isolated","ultramafic and metaultramafic bodies. Ocoee Supergroup, Catoctin Formation,","Pinnacle Formation, Tibbit Hill Formation, Bateau Formation, Lynchburg Formation",null,null,null,null,null,null,null,null,null,null]
["3_VOL_FELSIC",3.02,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus rift facies",null,null,null,null,null,"Neoproterozoic to Cambrian mainly clastic sedimentary rocks filling rift basins","and associated magmatism related to Iapetan rifting. Locally contains fragments","of oceanic crust. Volcanic rocks (felsic). Ocoee Supergroup, Catoctin","Formation, Pinnacle Formation, Tibbit Hill Formation, Bateau Formation,","Lynchburg Formation",null,null,null,null,null,null,null,null,null,null]
["3_VOL_MAFIC",3.03,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus rift facies",null,null,null,null,null,"Neoproterozoic to Cambrian mainly clastic sedimentary rocks filling rift basins","and associated magmatism related to Iapetan rifting. Locally contains fragments","of oceanic crust. Volcanic rocks (mafic). Ocoee Supergroup, Catoctin Formation,","Pinnacle Formation, Tibbit Hill Formation, Bateau Formation, Lynchburg Formation",null,null,null,null,null,null,null,null,null,null,null]
["4",4.00,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus drift facies - passive margin sequence",null,null,null,"Knox?Beekmantown?St. George unconformity",null,"Lower Paleozoic basal transgressive clastic sequence and overlying dominantly","carbonate platform sequence containing local clastic rocks. Chilhowee Group,","Knox Group, Beekmantown Group, Philipsburg Group, Port au Port Group, Potsdam","Sandstone",null,null,null,null,null,null,null,null,null,null,null]
["5",5.00,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Iapetus drift facies - passive margin sequence",null,null,null,"Knox?Beekmantown?St. George unconformity",null,"Continental slope-and-rise facies; locally may contain oceanic volcanic rocks","and rift-facies rocks. Conestoga Limestone, Ottauquechee Formation,","Trois-Pistoles Group, Northern Head Group, West Castleton Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["6a",6.01,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Taconic clastic wedge",null,null,null,null,"Knox?Beekmantown?St. George unconformity","Westward-transgressive clastic wedges mainly derived from an eastern source and","associated carbonate rocks. Locally includes mélange. Lower Middle Ordovician","Sevier clastic wedge. Sevier Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["6ab",6.02,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Taconic clastic wedge",null,null,null,null,"Knox?Beekmantown?St. George unconformity","Combined geological unit.",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["6b",6.03,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Taconic clastic wedge",null,null,null,null,"Knox?Beekmantown?St. George unconformity","Westward-transgressive clastic wedges mainly derived from an eastern source and","associated carbonate rocks. Locally includes mélange. Middle to Upper","Ordovician Taconic clastic wedge; gradational with unit 23. Martinsburg","Formation, Walloomsac Formation",null,null,null,null,null,null,null,null,null,null,null]
["6c",6.04,"Southern Appalachians","LAURENTIAN REALM (entire orogen)","Taconic clastic wedge",null,null,null,null,"Knox?Beekmantown?St. George unconformity","Westward-transgressive clastic wedges mainly derived from an eastern source and","associated carbonate rocks. Locally includes mélange. Lower to Upper Ordovician","Tourelle-Humber wedge; extends into Lower Silurian on Anticosti Island.","Tourelle Formation, Goose Tickle Group",null,null,null,null,null,null,null,null,null,null,null]
["7",7.01,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Multiply tectonized accretionary complex",null,null,null,null,"Neoproterozoic to Lower Paleozoic mainly clastic metasedimentary rocks, schist,","and gneiss containing metaclastic mélanges and subordinate amphibolite,","meta-ultramafic rocks, and eclogite. Locally associated with ca. 1 Ga gneiss of","unit 1. Likely includes rocks equivalent to units 1, 3, 4, 5, 6, 8, and 9. Ashe","Formation, Evington Group",null,null,null,null,null,null,null,null,null,null]
["7_MAFIC_OPH",7.02,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Multiply tectonized accretionary complex",null,null,null,null,"Neoproterozoic to Lower Paleozoic mainly clastic metasedimentary rocks, schist,","and gneiss containing metaclastic mélanges and subordinate amphibolite,","meta-ultramafic rocks, and eclogite. Locally associated with ca. 1 Ga gneiss of","unit 1. Likely includes rocks equivalent to units 1, 3, 4, 5, 6, 8, and 9.","Mafic components of an ophiolite and areas of isolated ultramafic and","metaultramafic bodies. Ashe Formation, Evington Group",null,null,null,null,null,null,null,null,null]
["7_SHEAR",7.04,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Multiply tectonized accretionary complex",null,null,null,null,"Neoproterozoic to Lower Paleozoic mainly clastic metasedimentary rocks, schist,","and gneiss containing metaclastic mélanges and subordinate amphibolite,","meta-ultramafic rocks, and eclogite. Locally associated with ca. 1 Ga gneiss of","unit 1. Likely includes rocks equivalent to units 1, 3, 4, 5, 6, 8, and 9.","Shear zone. Ashe Formation, Evington Group",null,null,null,null,null,null,null,null,null,null]
["7_UMAFIC_OPH",7.03,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Multiply tectonized accretionary complex",null,null,null,null,"Neoproterozoic to Lower Paleozoic mainly clastic metasedimentary rocks, schist,","and gneiss containing metaclastic mélanges and subordinate amphibolite,","meta-ultramafic rocks, and eclogite. Locally associated with ca. 1 Ga gneiss of","unit 1. Likely includes rocks equivalent to units 1, 3, 4, 5, 6, 8, and 9.","Ultramafic components of an ophiolite and areas of isolated ultramafic and","metaultramafic bodies. Ashe Formation, Evington Group",null,null,null,null,null,null,null,null,null]
["7a",7.05,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Multiply tectonized accretionary complex",null,null,null,null,"Neoproterozoic to Lower Paleozoic mainly clastic metasedimentary rocks, schist,","and gneiss containing metaclastic mélanges and subordinate amphibolite,","meta-ultramafic rocks, and eclogite. Locally associated with ca. 1 Ga gneiss of","unit 1. Likely includes rocks equivalent to units 1, 3, 4, 5, 6, 8, and 9.","Metaclastic rocks and amphibolite of the Smith River allochthon; metaclastic","rocks yield Early Cambrian monazite ages. Fork Mountain Formation",null,null,null,null,null,null,null,null,null]
["8a",8.01,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Mainly Lower to Middle Ordovician metamagmatic rocks and associated metaclastic","rocks of the Chopawamsic volcanic arc. Chopawamsic Formation",null,null,null,null,null,null,null,null,null,null,null,null,null]
["8a_INT_FELSIC",8.03,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Mainly Lower to Middle Ordovician metamagmatic rocks and associated metaclastic","rocks of the Chopawamsic volcanic arc. Intrusive rocks (felsic). Chopawamsic","Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["8a_INT_MAFIC",8.04,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Mainly Lower to Middle Ordovician metamagmatic rocks and associated metaclastic","rocks of the Chopawamsic volcanic arc. Intrusive rocks (mafic). Chopawamsic","Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["8a_VOL_FELSIC",8.02,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Mainly Lower to Middle Ordovician metamagmatic rocks and associated metaclastic","rocks of the Chopawamsic volcanic arc. Volcanic rocks (felsic). Chopawamsic","Formation",null,null,null,null,null,null,null,null,null,null,null,null]
["8b",8.05,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Other metamagmatic rocks and associated metaclastic rocks of rift,","magmatic-arc, or oceanic affinity. Dadeville Complex",null,null,null,null,null,null,null,null,null,null,null,null,null]
["8b_INT_FELSIC",8.08,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Other metamagmatic rocks and associated metaclastic rocks of rift,","magmatic-arc, or oceanic affinity. Intrusive rocks (felsic). Dadeville Complex",null,null,null,null,null,null,null,null,null,null,null,null,null]
["8b_UMAFIC_OPH",8.09,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Other metamagmatic rocks and associated metaclastic rocks of rift,","magmatic-arc, or oceanic affinity. Ultramafic components of an ophiolite and","areas of isolated ultramafic and metaultramafic bodies. Dadeville Complex",null,null,null,null,null,null,null,null,null,null,null,null]
["8b_VOL_FELSIC",8.06,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Other metamagmatic rocks and associated metaclastic rocks of rift,","magmatic-arc, or oceanic affinity. Volcanic rocks (felsic). Dadeville Complex",null,null,null,null,null,null,null,null,null,null,null,null,null]
["8b_VOL_MAFIC",8.07,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN","Composite magmatic arc and other magmatic rocks",null,null,null,null,"Other metamagmatic rocks and associated metaclastic rocks of rift,","magmatic-arc, or oceanic affinity. Volcanic rocks (mafic). Dadeville Complex",null,null,null,null,null,null,null,null,null,null,null,null,null]
["9",9.01,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN",null,null,null,null,null,"Neoproterozoic to Lower Paleozoic mainly clastic metasedimentary rocks, schist","and gneiss locally associated with amphibolite and meta-ultramafic rocks.","Separated from unit 7 by a generally closer spatial relationship with unit 8a,","more prevalent migmatization, no direct association with ca. 1 Ga basement, the","lack of eclogite, and distinct structural style. Unnamed gneiss and schist of","the Six Mile Nappe",null,null,null,null,null,null,null,null,null]
["9_SHEAR",9.03,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN",null,null,null,null,null,"Neoproterozoic to Lower Paleozoic mainly clastic metasedimentary rocks, schist","and gneiss locally associated with amphibolite and meta-ultramafic rocks.","Separated from unit 7 by a generally closer spatial relationship with unit 8a,","more prevalent migmatization, no direct association with ca. 1 Ga basement, the","lack of eclogite, and distinct structural style. Shear zone. Unnamed gneiss and","schist of the Six Mile Nappe",null,null,null,null,null,null,null,null,null]
["9_UMAFIC_OPH",9.02,"AXIAL REALM","Southern Appalachians","PIEDMONT DOMAIN",null,null,null,null,null,"Neoproterozoic to Lower Paleozoic mainly clastic metasedimentary rocks, schist","and gneiss locally associated with amphibolite and meta-ultramafic rocks.","Separated from unit 7 by a generally closer spatial relationship with unit 8a,","more prevalent migmatization, no direct association with ca. 1 Ga basement, the","lack of eclogite, and distinct structural style. Ultramafic components of an","ophiolite and areas of isolated ultramafic and metaultramafic bodies. Unnamed","gneiss and schist of the Six Mile Nappe",null,null,null,null,null,null,null,null]
["ARBITRARY",28.03,null,null,null,null,null,null,null,null,"Arcs used to close geological polygons",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["COASTAL_PLAIN",26.00,null,null,null,null,null,null,null,null,"Coastal plain - internal polygons",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["DEFINED",28.01,null,null,null,null,null,null,null,null,"Geological boundary",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["FAULT",30.02,null,null,null,null,null,null,null,null,"Undefined fault",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["INLIER",27.00,null,null,null,null,null,null,null,null,"Inlier - internal polygons",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["LIMIT_MAPPING",28.04,null,null,null,null,null,null,null,null,"Limit of mapping",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["MELANGE",33.00,null,null,null,null,null,null,null,null,"Mélange and broken formation",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["NORMAL_FAULT",31.00,null,null,null,null,null,null,null,null,"Normal fault",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["STRIKE_SLIP",30.01,null,null,null,null,null,null,null,null,"Strike-slip (arrows indicate relative movement)",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["STRUCTURAL",28.02,null,null,null,null,null,null,null,null,"An arc used to close a geological polygon along a linear feature",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["SUB_DEFINED",32.00,null,null,null,null,null,null,null,null,"Submerged geological boundaries",null,null,null,null,null,null,null,null,null,null,null,null,null,null]
["THRUST_FAULT",29.00,null,null,null,null,null,null,null,null,"Thrust fault",null,null,null,null,null,null,null,null,null,null,null,null,null,null]