The First Discovery of Platinum Group Minerals in Black Shale Gold Ores of the Degdekan Deposit, Northeast Russia

摘要

Northeast Interdisciplinary Science Research Institute, Far East Branch, Russian Academy of Sciences, ul. Portovaya 16, Magadan, 685000 Russia;Northeast Interdisciplinary Science Research Institute, Far East Branch, Russian Academy of Sciences, ul. Portovaya 16, Magadan, 685000 Russia;Northeast Interdisciplinary Science Research Institute, Far East Branch, Russian Academy of Sciences, ul. Portovaya 16, Magadan, 685000 Russia;Northeast Interdisciplinary Science Research Institute, Far East Branch, Russian Academy of Sciences, ul. Portovaya 16, Magadan, 685000 Russia;Northeast Interdisciplinary Science Research Institute, Far East Branch, Russian Academy of Sciences, ul. Portovaya 16, Magadan, 685000 Russia;%The results of investigation of heavy fraction minerals from the Degdekan deposit hosted by the lower portion of stratified Mid Permian sediments are presented; the investigation was conducted via electron microscopy using a QEMSCAN hardware and software instrument equipped with a QUANTAX quantitative analysis system. The following mineral phases of platinoids have been detected for the first time: native osmium, rutheniridosmine, osmiridium, ruthenosmiridium, laurite, iridarsenite, and Ru, Os, and Ir arsenide.