The results of investigation of micromineralogy of disseminated-sulphide gold ore deposits of the Yana-Kolyma belt; the investigation was conducted via electron microscopy using a QEMSCAN （Quantitative Evaluation of ...The results of investigation of micromineralogy of disseminated-sulphide gold ore deposits of the Yana-Kolyma belt; the investigation was conducted via electron microscopy using a QEMSCAN （Quantitative Evaluation of Minerals by Scanning Electron Microscopy） hardware and software instrument equipped with a Quantax quantitative analysis system. The following micro-mineral phases have been detected： native gold and silver, selenides of Au and Ag （naumanite and fishesserite （？）, hessite, sulfoarsenides of Ni and Co （gersdorffite, cobaltite, rammelsbergite）, molibdenite and platinum group minerals. Our findings in disseminated sulfide ores selenides of Au and Ag, and molybdenite, together with the findings of platinum group minerals and Ni and Co, emphasize the ＂black shale＂ specifics character of these types of deposits.展开更多
文摘The results of investigation of micromineralogy of disseminated-sulphide gold ore deposits of the Yana-Kolyma belt; the investigation was conducted via electron microscopy using a QEMSCAN （Quantitative Evaluation of Minerals by Scanning Electron Microscopy） hardware and software instrument equipped with a Quantax quantitative analysis system. The following micro-mineral phases have been detected： native gold and silver, selenides of Au and Ag （naumanite and fishesserite （？）, hessite, sulfoarsenides of Ni and Co （gersdorffite, cobaltite, rammelsbergite）, molibdenite and platinum group minerals. Our findings in disseminated sulfide ores selenides of Au and Ag, and molybdenite, together with the findings of platinum group minerals and Ni and Co, emphasize the ＂black shale＂ specifics character of these types of deposits.
