convergent margin ni-cu-pge deposits : geology
The Giant Mascot Ni-Cu-PGE deposit remains British Columbia’s only past-producing nickel mine (1958-1974) with ~4.2 Mt of ore grading 0.77% Ni, 0.34% Cu, minor Co, Ag, and Au, and unreported platinum group elements (PGE). The deposit is part of a new class of ‘convergent margin’ Ni-Cu-PGE sulphide deposits containing orthopyroxene and magmatic hornblende. The ultramafic-mafic intrusions