The Ryabinovoe Porphyry Cu–Au Deposit (Southern Yakutia): Geology, Wallrock Alteration, Noble Gases Isotope Systematics and Isotopic Dating of Mineralization Processes

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发表日期：

2024年2月1日

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N. V. Shatova,
A. V. Molchanov,
A. V. Terekhov,
V. V. Shatov,
O. V. Petrov,
S. A. Sergeev,
E. M. Prasolov,
G. P. Dvornik,
V. I. Leontev

摘要

Abstract

In the territory of the Ryabinovoe porphyry copper-gold deposit, ore mineralization is confined to multi-stage metasomatism fields, which were formed in two stages. At the first, pre-ore stage, high-temperature potassium-sodium metasomatites (aegirine feldspathites) were formed, at the second stage, medium-low-temperature wallrock gumbeites in the form of two facies varieties: carbonate-sericite-muscovite-orthoclase and quartz-carbonate-barite-adular varieties. Results of isotope studies (U-Pb, Rb-Sr, Re-Os, ⁴⁰Ar/³⁶Ar, ³He/⁴He, ²⁰Ne) of the aforementioned metasomatites and ore mineralization are discussed in the paper.