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https://hdl.handle.net/2440/119041
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Type: | Journal article |
Title: | Characteristics and genesis of the Mnogovershinnoe gold-silver deposit, SE Russia |
Author: | Khomich, V. Boriskina, N. Fatyanov, I. Santosh, M. |
Citation: | Ore Geology Reviews, 2018; 103:56-67 |
Publisher: | Elsevier |
Issue Date: | 2018 |
ISSN: | 0169-1368 1872-7360 |
Statement of Responsibility: | Vadim G. Khomich, Natalia G. Boriskina, Igor I. Fatyanov, M. Santosh |
Abstract: | The Mnogovershinnoe ore deposit is part of the Bekchiul volcano-plutonic complex, located on the northern flank of the East-Sikhote-Alinsky belt in SE Russia. The complex was developed in two stages during the Senonian (Upper Cretaceous) and Paleocene-Eocene. The early stage is represented by a poorly differentiated andesite-granodiorite association and the late stage is marked by subalkaline monzodiorite-granite intrusions. The vein-metasomatic zones with Au-Ag mineralization are associated with magmatic units of the early stage and are crosscut by large dikes of the late stage. The deposit shows features of epithermal mineralization and a higher temperature overprint. The total ca. 1000 m zone of productive mineralization shows vertical zoning characterized by gold-sulfosalt-sulfide, gold-sulfide, then gold-telluride-sulfide, and telluride-sulfide, from bottom to top. The hydrothermal system of the deposit shows evidence for mixing between fluids derived from the volcano-plutonic units and meteoric water. The mineralization is inferred to have formed from the mixing between these fluids and by the fluctuations of fluid pressure in the system. |
Keywords: | Gold; silver; zoning; fluid mixing; ore genesis |
Rights: | © 2017 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.oregeorev.2017.01.017 |
Published version: | http://dx.doi.org/10.1016/j.oregeorev.2017.01.017 |
Appears in Collections: | Aurora harvest 4 Geology & Geophysics publications |
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