Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1134/S1819714015040028

Ключевые слова: fluid, isotope composition, mineralogy, northeastern Russia, polygenetic mineralization, structure, deformations, temperature conditions

Аннотация: Detailed structural study of ore zones and deformations in host rocks reveals the multistage tectonic evolution of the Malo-Taryn ore field. Gold–quartz mineralization is confined to the interstratal and longitudinal thrust faults, where vein–stringer bodies are systematically oriented relative to the structures of the thrust stage. Antimony mineralization is superposed on gold–quartz mineralization in the same structures, being associated with veins formed during the shear stage of deformations. It is determined that the types of mineralization were formed in the following sequence: gold–bismuth, low-sulfide gold–quartz, berthierite–antimonite, and silver–antimony. Data on mineral assemblages and typomorphic features of minerals are reported. The isotope composition of minerals, temperature conditions, and composition of orebearing fluids are studied. It is established that the same minerals ascribed to different types of mineralization sharply differ in typomorphic features, which is caused by the different composition and genesis of the hydrothermal fluids. The superposition of different types of mineralization on one another within repeatedly activated tectonic structures that were fluid-permeable for a long time is an important indication of large-scale deposits. © 2015, Pleiades Publishing, Ltd.

Журнал: Russian Journal of Pacific Geology

Выпуск журнала: Vol. 9, Is. 4

Номера страниц: 274-286

• Fridovsky V.Y. (Institute of Diamond and Precious Metal Geology, Siberian Branch, Russian Academy of Sciences, pr. Lenina 39, Yakutsk, Russian Federation, Ammosov Northeastern Federal University, ul. Belinskogo 58, Yakutsk, Russian Federation)
• Gamyanin G.N. (Institute of Diamond and Precious Metal Geology, Siberian Branch, Russian Academy of Sciences, pr. Lenina 39, Yakutsk, Russian Federation, Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of )
• Polufuntikova L.I. (Ammosov Northeastern Federal University, ul. Belinskogo 58, Yakutsk, Russian Federation)

• Scopus