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Data on the Conditions of the Formation of Gold Mineralization in the Drazhnoe Deposit, the Republic of Sakha (Yakutia): Evidence from the Study of Fluid Inclusionsстатья
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 21 июля 2021 г.
- Авторы: Sivkov D.V., Prokofiev V.Yu, Chikatueva V.Yu
- Журнал: Moscow University Geology Bulletin
- Том: 76
- Номер: 2
- Год издания: 2021
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 155
- Последняя страница: 162
- DOI: 10.3103/S0145875221020113
- Аннотация: New results of thermobarogeochemical studies show that quartz veins in the Drazhnoe deposit were formed under mesothermal conditions at a depth of 3–9 km from heterogeneous carbon dioxide–aqueous fluids with a low concentration of brines and high contents of CO2, which is typical of ore-forming fluids in orogenic vein gold deposits. Based on the phase composition, three types of fluid inclusions are distinguished: (1) carbon dioxide–hydrous; (2) gaseous, filled with dense carbon dioxide; and (3) a two-phase gas–liquid of hydrous–brine solutions. Na, Mg, and Fe chlorides predominated in the ore-forming fluids. It is assumed that the fluids migrated along the regional Adycha-Taryn shear zone and were lifted to the Earth’s surface at a supra-lithostatic pressure, which was followed by precipitation of ore elements and the formation of quartz veins during tectonic movements along shear zones.
- Добавил в систему: Прокофьев Всеволод Юрьевич
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