Meadowbank Gold Mineralization
Gold mineralization is intimately associated with sulphides, dominantly pyrrhotite and pyrite. These occur as replacement of magnetite in oxide facies of the banded iron formation in S0//S1. Sulphides occur as fracture fill and disseminated form in both iron formation and inter-bedded clastic units.
The bulk of gold mineralization is contained within the iron formation, with mineralization in the clastic units probably representing remobilization and/or secondary enrichment by gold bearing hydrothermal fluids.
Gold tends to concentrate along the lower limb and in the hinge area of the recumbent F2 fold, and shows excellent continuity both along strike and down dip.
Gold mineralization at Meadowbank does not match either stratiform or non-stratiform deposits but may be described as hybrid in character.