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Home Archive of journals Volume 11, No. 3, 2021 Less-common and rare earth elements of the Pechenga region ores


JOURNAL: Volume 11, No. 3, 2021, p. 406-421

HEADING: Study and development of nature resources of the Arctic

AUTHORS: Lobanov, K.V., Grigoryeva, A.V., Volkov, A.V., Chicherov, M.V., Murashov, K.Y.

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

DOI: 10.25283/2223-4594-2021-3-406-421

UDC: 553.4

The article was received on: 25.06.2021

Keywords: rare earth elements, copper-nickel deposits, microelements, geochemistry of ores, Pechenga region

Bibliographic description: Lobanov, K.V., Grigoryeva, A.V., Volkov, A.V., Chicherov, M.V., Murashov, K.Y. Less-common and rare earth elements of the Pechenga region ores. Arktika: ekologiya i ekonomika. [Arctic: Ecology and Economy], 2021, vol. 11, no. 3, pp. 406-421. DOI: 10.25283/2223-4594-2021-3-406-421. (In Russian).


The article presents the investigations in the Pechenga ore region — one of the largest industrial regions in the Arctic zone of Russia, located on the territory of the Murmansk area. The researchers obtained new data on the chemical composition of the main ore minerals, the content of trace elements, including rare earths (REE), in the ores of the Pilguyarvi and Vostok deposits and late polymetallic veins of the Pechenga region. They found that the main textural types of ores (massive, veined and disseminated) differ significantly in chemical composition and content of rock and ore-forming components. They also revealed the enrichment of ores with a wide range of trace elements. In comparison with the upper crust, the Pechenga ores are clearly enriched with chalcophilic and siderophilic trace elements. The enrichment coefficients of ore elements reach mainly tens (Cr, Au, Cd) hundreds (Ag, Se, Re, Pt) and thousands (Ni, Cu, Ir) times. The distribution of trace elements in various types of Cu-Ni ores has a great similarity, which indicates their geochemical affinity and synchronous participation in ore formation. The geochemical features are in good agreement with the mineral composition of the ores. The concentration of rare earth elements in the main types of ores, with the exception of massive ores and late polymetallic veins, exceeds the level of the chondrite standard and the REE fractionation is weak. The composition of the REE in ores came by from the host rocks. The research has established the high enrichment of all types of Re, Bi and Cd ores, which are potentially industrially significant as high-tech metals and are of considerable interest for associated mining.

Finance info: The research was financially supported by the Russian Foundation for Basic Research, (Grant No. 18-05-70001 Studying the geological and geodynamic conditions for the formation of large strategic metal deposits in the Arctic zone of Russia: conclusions for forecasting and prospecting for new deposits).

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DOI 10.25283/2223-4594