Peculiarities of ore formation at the N’yavlenga Au-Ag epithermal deposit, Northeast Russia

Thermobarogeochemical studies have revealed the relatively high-temperature ore-bearing fluid of the N’yavlenga deposit. The dependence between the homogenization temperatures of the fluid inclusions and salinity of the fluid and the bimodal distribution of salinity values indicates mixing of two di...

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Bibliographic Details
Published in:Doklady earth sciences 2014-09, Vol.458 (1), p.1063-1066
Main Authors: Volkov, A. V., Prokof’ev, V. Yu, Ali, A. A., Sidorov, A. A.
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Fluid dynamics
Geology
High temperature
Metamorphism
Metamorphism (Geology)
Mineralogy
Porphyry
Rocks, Metamorphic
Salinity
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Summary:Thermobarogeochemical studies have revealed the relatively high-temperature ore-bearing fluid of the N’yavlenga deposit. The dependence between the homogenization temperatures of the fluid inclusions and salinity of the fluid and the bimodal distribution of salinity values indicates mixing of two different fluids in the ore-bearing system. These facts are related to the thermal metamorphism of ores from the N’yavlenga deposit and indicate the complex relations of the early Au-Ag epithermal and late Au-Cu-Mo porphyry mineral complexes in orebodies of the deposit.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X14090359