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Sources of Fluids and Material for Gold and Antimony Mineralization in the Adychanskii Ore Region (East Yakutia, Russia)статья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 ноября 2017 г.
- Авторы: Aristov V.V., Kryaghev S.G., Ryzhov O.B., Volfson A.A., Prokofiev V.Yu, Sidorova N.V., Sidorov A.A.
- Журнал: Doklady Earth Sciences
- Том: 476
- Номер: 1
- Год издания: 2017
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 986
- Последняя страница: 991
- DOI: 10.1134/S1028334X17090100
- Аннотация: The peculiarities of fluid inclusions; the O and C isotope composition of host rocks, vein minerals,and inclusions; and the S and Pb isotope composition of sulfides allowed us to distinguish two groups of fluids with a similar temperature, salinity, and source of the aqueous part produced upon metagenesis and mobilized during collisional events. Quartz-A precipitates from the CO2–H2O hydrocarbonate–Na fluid with a salinity of 7–10 wt % eq. NaCl at a depth of ~6 km (290–340°C, 1550 bar). Regeneration of quartz (quartz-C), precipitation of quartz-B, and quartz-AB with carbonate and chlorite occurred at a depth from 3.5 to 1.5 km (250–380°C, 1250–900–350 bar) from CO2–CH4–N hydrous sulfate–hydrocarbonate Na–Mg fluids with Cl–, Ca, and K and a salinity of 5–10 wt % eq. NaCl, and a wide variety of impurities. The localization of veins in sinistral shear dislocations and strong heterogeneity in the P–T conditions allow us to explain the formation of fluid-2 by the postcollisional events.
- Добавил в систему: Прокофьев Всеволод Юрьевич