The Ryabinovoe Porphyry Cu–Au Deposit (Southern Yakutia): Geology, Wallrock Alteration, Noble Gases Isotope Systematics and Isotopic Dating of Mineralization Processes
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
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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.
期刊介绍：
Geology of Ore Deposits is a periodical covering the topic of metallic and nonmetallic mineral deposits, their formation conditions, and spatial and temporal distribution. The journal publishes original scientific articles and reviews on a wide range of problems in theoretical and applied geology. The journal focuses on the following problems: deep geological structure and geodynamic environment of ore formation; distribution pattern of metallogenic zones and mineral deposits; geology and formation environment of large and unique metallic and nonmetallic deposits; mineralogy of metallic and nonmetallic deposits; physicochemical and isotopic characteristics and geochemical environment of ore deposition; evolution of ore-forming systems; radiogeology and radioecology, economic problems in exploring, developing, and mining of ore commodities.
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