orogenic periods to the Miocene Kuroko deposits of Japan. These deposits are associated with abundant sulfate...base of the Complex (Vermaak, 1976). At the Atok mine, platinoid minerals tend to occur at the boundaries...and the youngest, the Kuroko in the Miocene of Japan, are sufficient to warrant separation into two subtypes;...Because the Miocene massive sulfide deposits of Japan (Tatsumi, 1970; Tatsumi and Watanabe, 1970) have...elongate or circular subsid¬ ence structures. In Japan, the Kuroko deposits are mostly part of the Miocene |