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Russian Geology and Geophysics

2006 year, number 11

GEOLOGO-GENETIC MODELS OF GOLD DEPOSITS IN THE TRANSBAIKALIAN AREA OF THE MONGOLO-OKHOTSK FOLD BELT

A.M. Spiridonov and L.D. Zorina
Institute of Geochemistry, Siberian Branch of the RAS, 1a ul. Favorskogo, Irkutsk, 664033, Russia
Keywords: Geologo-genetic models, gold deposits, ore-magmatic systems, geodynamic setting, ore formation processes, geologic processes responsible for ore formation, zoning, thermodynamic setting of ore deposition
Pages: 1138-1149

Abstract

Based on Ovchinnikov's genetic-type formula, geologo-genetic models have been constructed for Mesozoic gold deposits localized in chamber-dome and chamber-depression structures in the Transbaikalian area of the Mongolo-Okhotsk fold belt. This formula includes 12 factors that characterize ore formation processes, their depth of occurrence and geodynamic settings, the sources of ore matter and ore-forming solution, energy of ore formation processes, composition of ore-forming solution, environment and mechanism of ore deposition, zoning, interaction of ores with host rocks, and thermodynamic setting of ore deposition.