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UDC 553.411.071:552.1(571.54/.55-11) ORE COMPOSITION OF THE POGROMNOYE GOLD DEPOSIT (EASTERN TRANSBAIKALIA)
A. M. Spiridonov, Z. I. Kulikova, A. E. Budyak, L. D. Zorina, L. A. Pavlova, A. V. Parshin, E. M. Granina
We have studied mineralogical and geochemical characteristics of ores of the Pogromnoye gold deposit that is unconventional for Transbaikalia. The deposit is localized in the dynamoclastic strata in the area of the Mongol-Okhotsk suture, along which the jointing of the Siberian and Mongolian-Chinese mainlands occurred. Gold mineralization is represented by two morphological types of ores: stockwork quartz-carbonate-pyritearsenopyrite in metasomatically altered effusives deposit-1) and quartz-veined (interspersed with sulphides) in altered carbonaceous shales (deposit-10). Auriferous in the deposit are pre-ore and ore metasomatites by volcanites with sulphide mineralization (gold concentrators – pyrite and arsenopyrite-II-I) and modified carbonaceous shales (gold concentrators – vein quartz and arsenopyrite-II). Gold in ore deposits is native, high-grade.
Key words: gold deposit, metasomatites, dinamoclasticity, morphological type of ore mineralization, ore compositions.
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