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Home Archive of journals Issue 2(34) 2019 Geodynamic formation setting of the strategic metal deposits in the Russian Arctic zone

GEODYNAMIC FORMATION SETTING OF THE STRATEGIC METAL DEPOSITS IN THE RUSSIAN ARCTIC ZONE

JOURNAL: 2019, 2(34), p. 109-119

RUBRIC: Study and development of nature resources of the Arctic

AUTHORS: Volkov A.V., Galyamov A.L., Lobanov K.V.

ORGANIZATIONS: Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of RAS

DOI: 10.25283/2223-4594-2019-2-109-119

UDC: 553.44:553.061

The article was received on: 24.01.2019

Keywords: database, geodynamic situation, metallogeny, forecast, strategic metals, Arctic zone of the Russian Federation, magmatism, large deposit, ore occurrence

Bibliographic description: Volkov A.V., Galyamov A.L., Lobanov K.V. Geodynamic formation setting of the strategic metal deposits in the Russian Arctic zone. Arctic: ecology and economy, 2019, no. 2(34), pp. 109-119. DOI: 10.25283/2223-4594-2019-2-109-119. (In Russian).


ANNOTATION:

The article presents the GIS analysis results of the metallogeny correlation with geodynamic settings in the Arctic zone of the Russian Federation (AZRF), and discusses the role of magmatism in the tectonic and metallogenic evolution of the region. The research is based on the Arctic updated database, including location information of more than 26 thousand objects — ore and placer deposits, ore occurrences, mineralization points, more than 8 thousand of them — in Russia. According to the GIS analysis, almost equal number of objects (30%) is located in the protrusions of the Precambrian Foundation, the terrains of the passive and active continental margin, and 9% of the total — in a collision setting. It is shown that the extent areas of different-age granitoid intrusions are unevenly distributed, often forming combined assemblages that fix magma-bearing channels. A large number of ore objects, including large complex deposits of strategic metals, are developed on the periphery of these areas. The GIS analysis of the deposits’ location in the areas of granitoids, magnetite, titanic iron ore and intermediate series shows that previously identified metallogenic features are, in general, valid for the AZRF. The deposits of Au, Ag and Cu are localized in the areas of development of the Cretaceous magmatism of the magnetite series, and the mineralization of Sn, W, Pb and Zn is confined to the distribution areas of titanic iron ore granite series. The obtained results are essential for the new deposits’ forecasting.


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© 2011-2019 Arctic: ecology and economy
DOI 10.25283/2223-4594