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PREDICTIVE MODEL OF MINERAL PROSPECTIVITY OF THE SHAKHTAMA ORE FIELD (EASTERN TRANSBAIKALIA)

G. А. Yurgenson, R. V. Gruzdev

Institute of Natural Resources, Ecology and Cryology SB RAS, Chita, Russia

The article analyzes the generalized material from a long-term systematic study of the Shakhtama ore field. A concise review of the geological structure, tectonomagmatic features of ore-forming processes and formation conditions of the ore field, and geochemical and hydrothermal-metasomatic zoning of produced mineralization within its boundaries is provided. Analysis of the obtained data has revealed significant scales of hydrothermal-metasomatic alterations within the flanks of the ore field (in addition to the well-known Shakhtama molybdenum deposit), thus laying the ground for searches for deposits with multimetal ores containing disseminated copper-molybdenum, and gold economically viable for open-pit mining. Based on the distinctive characteristics and criteria for localization of the molybdenum-copper-porphyry association type of deposits described in the article, a predictive model of mineral prospectivity has been developed for the Shakhtama ore field, according to which the exploration targets of the ore field are defined as gold-coppermolybdenum ore association.

Keywords: Shakhtama ore field, predictive model of mineral prospectivity, molybdenum-copper-porphyry, gold-copper-molybdenum formation, hydrothermal-metasomatic zoning.

DOI 10.20403/2078-0575-2025-3-50-61

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