The problem of genesis of gold and silver sulfides and selenides in the Kupol deposit (Chukotka,Russia) |
| |
| Authors: | NE Savva GA Pal’yanova MA Byankin |
| |
| Institution: | 1. Northeastern Complex Research Institute, Far East Branch of the Russian Academy of Sciences, ul. Portovaya 16, Magadan, 682000, Russia;2. V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia;3. Chukotskaya Gorno-Geologicheskaya Kompaniya Joint-Stock Company, ul. Proletarskaya 11, Magadan, 685000, Russia |
| |
| Abstract: | Gold and silver minerals from the Kupol epithermal deposit, Chukotka, were studied. A schematic sequence of mineral formation has been compiled. Specific mineral assemblages have been revealed in jarosite breccias: with native gold, uytenbogaardtite, fischesserite, acanthite, and native sulfur. We considered a possible mechanism of formation of gold and silver sulfides and selenides in volcanogenic deposits: They might have formed during solfatara and postsolfatara processes with the participation of volcanic gases or their condensates and sublimates as well as liquid sulfur (and selenium) and sulfuric hydrotherms produced under the interaction of volcanic gases with meteoric waters. The specific features of the Kupol deposit confirm the solfatara genesis of Au–Ag sulfides and selenides. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
