Selenga Ore District in Western Transbaikalia: Structural–Minerogenic Zoning, Genetic Types of Ore Deposits, and Geodynamic Settings of Ore Localization

— Integrated structural geological, minerogenic, and metallogenic studies with allowance for previous topical surveying, geological mapping and prospecting, and mineral exploration data has revealed that Upper Paleozoic and Early Mesozoic tectonomagmatic structures are widespread in the Selenga ore...

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Bibliographic Details
Published in:Geology of ore deposits 2019-09, Vol.61 (5), p.391-421
Main Authors: Gordienko, I. V., Badmatsyrenova, R. A., Lantseva, V. S., Elbaev, A. L.
Format: Article
Language:English
Subjects:
Apatite
Barium
Beryllium
Concentrates (ores)
Earth and Environmental Science
Earth Sciences
Economics
Feasibility studies
Fluorite
Gene mapping
Geologic mapping
Geological mapping
Geological surveys
Heavy metals
Localization
Magma
Mesozoic
Metals
Mineral deposits
Mineral exploration
Mineral Resources
Minerals
Mining industry
Modernization
Molybdenum
Ores
Paleozoic
Specificity
Strontium
Surveying
Titanium
Uranium
Viability
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Summary:— Integrated structural geological, minerogenic, and metallogenic studies with allowance for previous topical surveying, geological mapping and prospecting, and mineral exploration data has revealed that Upper Paleozoic and Early Mesozoic tectonomagmatic structures are widespread in the Selenga ore district. They are associated with the evolution of the transregional Upper Paleozoic Selenga–Vitim rift-related volcanoplutonic belt and the formation of the Early Mesozoic West Transbaikalian region of intraplate magmatism. Late Paleozoic–Mesozoic igneous activity accounts for the bulk of mineable mineral resources in the Selenga ore district concentrated inside and outside the ore clusters (Kunalei, Kizhinga, Cheremshana–Oshurkovo, Tashir, etc.). It is demonstrated that the main mineable metals in the district are molybdenum and beryllium, which determine the minerogenic specificity of the ore district. New compositional characteristics of the Upper Paleozoic and Early Mesozoic intraplate magmatic complexes and the associated mineral deposits (Mo, Be, Ti, quartz, fluorite, and apatite ores), as well as other promising gold, uranium, and REE–Ba–Sr ore occurrences were obtained. The geodynamic settings of their formation and the ages of the main ore-forming processes have been established; the viability of the mining industry in the Selenga ore district and the feasibility of involving its ore potential in the district’s economic modernization program have been assessed.
ISSN:1075-7015
1555-6476
DOI:10.1134/S1075701519050027