Ore-forming processes in the Drazhnoe gold–quartz deposit (Eastern Yakutia, Russia)

被引：0
|
作者：
V. V. Aristov
V. Yu. Prokofiev
B. N. Imamendinov
S. G. Kryazhev
V. Yu. Alekseev
A. A. Sidorov
机构：
[1] Russian Academy of Sciences,Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM RAN)
[2] Open Joint-Stock Company NUTs Mineral’nye Resursy,undefined
[3] Central Research Institute of Geological Prospecting for Base and Precious Metals,undefined
来源：
Doklady Earth Sciences | 2015年 / 464卷
关键词：
Pyrite; Fluid Inclusion; DOKLADY Earth Science; Ankerite; Gold Bearing;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Themobarogeochemical investigations revealed that quartz from the Drazhnoe deposit was formed in mesothermal conditions at depths of 3–4 km from carbon dioxide–water fluids with wide salinity variations and an admixture of methane. Several types of fluids are distinguishable on the basis of the composition of extracts: hydrocarbonate–sodium, highly diluted, and late sulfate–hydrocarbonate–sodium with elevated salinity. Ore minerals precipitated in the thermostatic environments against the background of fluid heterogenization due to a probably significant pressure drop and mixing of different solutions. Metamorphic processes related to the early collision stage provided no substantial impact on the composition and potential of gold ore mineralization.
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页码：879 / 884
页数：5
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