Platinum-group element (PGE) deposits and occurrences: Mineralization styles, genetic concepts, and exploration criteria

Other processes may also be relevant to reef formation. Data from the well-studied Bushveld Complex suggest that the magmas had reached sulfide saturation prior to emplacement, and that sulfides were entrained in the magma during ascent and emplacement. Sulfide entrainment has previously been recognised as one of the key factors in the formation of massive Ni-Cu sulfide deposits, and it is suggested here that it is also relevant to the formation of PGE deposits.