Palladium-rich Cu/Ni/PGE-mineralized mafic/ultramafic complex Located 85 kilometers North of Thunder Bay City, in 'Western Wabigoon Subprovince'.
The mafic complex is intruded in Archean formations (sandstone, arkose, greywacke affected by lower amphibolite contact metamorphism facies : garnets).
The Cu/Ni/PGE mineralization is hosted by a leucogabbro (overlying a clinopyroxenite), associated with diorites, granodiorites, biotite leucogranite and dunites).
The area is affected by extensive brecciation caused by injection of volatile-rich magma.
The mineralization (disseminated blebby sulphides surrounded by epidote), is related to late-stage immiscible separation of a sulphide melt from volatile-rich magma followed by metal redistribution by deuteritic fluids.
Ref.:
N.T. Pettigrew and K.H. Hattori, 2001, Explor. Mining Geol. , Vol. 10, N° 1-2, pp. 35-49.
Mineral List
26 entries listed. 17 valid minerals.
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