GEOCHEMISTRY AND ORIGIN OF THE ORE-FORMING FLUIDS IN HYDROTHERMAL-MAGMATIC SYSTEMS IN TECTONICALLY ACTIVE ZONES

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dc.contributor.author Bortnikov N.S.
dc.date.accessioned 2024-12-22T03:48:00Z
dc.date.available 2024-12-22T03:48:00Z
dc.date.issued 2006
dc.identifier https://www.elibrary.ru/item.asp?id=13524864
dc.identifier.citation Geology of Ore Deposits, 2006, 48, 1, 1-22
dc.identifier.issn 1075-7015
dc.identifier.uri https://repository.geologyscience.ru/handle/123456789/47082
dc.description.abstract Data on fluid inclusions and stable isotope compositions (O, H, C, and S) in minerals have been summarized for large- and middle-scale mesothermal gold deposits (Nezhdaninsk, Berezovsk, Kochkar', Svetlinsk, Darasun, and Maisk), cassiterite-silicate-sulfide deposits of Sikhote Alin (Solnechnoe, Arsen'evsk, and Vysokogorsk), vein silver-base metal deposits in the Southern Verkhoyansk region (Prognoz and Kupol'noe), and epithermal copper-bismuth-silver-base metal deposits of the Karamazar district in Tajikistan (Kanimansur, Tary Ekan, and Zambarak). It is shown that ores precipitated from fluids with salinity varying from brines (up to 60 wt % NaCl equiv) to dilute fluids (1-3 wt % NaCl equiv). As a rule, fluids of different compositions entered the hydrothermal-magmatic system. A fluid mixture of H2O-CO2-NaCl ± CH4 ± N2 predominated in the orogenic (mesothermal) gold-bearing hydrothermal systems, with deposition of the final-stage gold-bearing sulfosalts from aqueous-salt fluid. Brines played a significant role in the formation of cassiterite-silicate-sulfide and vein silver-base metal deposits. The brines often coexisted with a low-density vapor-rich fluid at the ore deposition site. The obtained data suggest a predominant magmatic component in the hydrothermal-magmatic systems, with a significant contribution of meteoric waters. © Pleiades Publishing, Inc., 2006.
dc.title GEOCHEMISTRY AND ORIGIN OF THE ORE-FORMING FLUIDS IN HYDROTHERMAL-MAGMATIC SYSTEMS IN TECTONICALLY ACTIVE ZONES
dc.type Статья
dc.identifier.doi 10.1134/S1075701506010016


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