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Home » Archive of journals » Volume 15, No. 3, 2025 » Uranium-noble metal mineralization of the Karelian Arctic and Northern Priladozhye: mineralogical and geochemical comparison and prospects

URANIUM-NOBLE METAL MINERALIZATION OF THE KARELIAN ARCTIC AND NORTHERN PRILADOZHYE: MINERALOGICAL AND GEOCHEMICAL COMPARISON AND PROSPECTS

JOURNAL: Volume 15, No. 3, 2025, p. 55-68

HEADING: Study and development of nature resources of the Arctic

AUTHORS: Ivashchenko, V.I.

ORGANIZATIONS: Institute of Geology of the Karelian Research Centre of the Russian Academy of Sciences

DOI: 10.25283/2223-4594-2025-3-55-68

UDC: 553.411.071+553.495(581.524.441)

The article was received on: 16.04.2025

Keywords: gold, platinum group metals, Precambrian, Karelian Arctic, uranium, selenium, alkaline-carbonate metasomatic rocks, carbonaceous schists, evaporites

Bibliographic description: Ivashchenko, V.I. Uranium-noble metal mineralization of the Karelian Arctic and Northern Priladozhye: mineralogical and geochemical comparison and prospects. Arktika: ekologiya i ekonomika. [Arctic: Ecology and Economy], 2025, vol. 15, no. 3, pp. 55-68. DOI: 10.25283/2223-4594-2025-3-55-68. (In Russian).

Abstract:

The article considers the results of a detailed mineralogical and geochemical study and comparative analysis of the Lagernoye and Ozernoye gold-uranium occurrences in the Arctic zone of the Republic of Karelia (Kuolajärvi structure) and similar mineralization in the Ladoga and Onega structures. The author specifies the genetic and geochemical features and proposes a model of their formation involving evaporites, fault metasomatism and granitoid magmatism. Based on the detection and identification of platinum-metal mineral phases in metasomatically altered black shales of the Lagernoye occurrence, the reliability of analytical data on high Pd contents in them is confirmed and, in this aspect, the metallogenic potential of the Niluttiyärvi exploration area of the Karelian Arctic for noble metals and uranium is shown.

Finance info: The work was carried out with the financial support of the State Assignment topic of the Institute of Geology, Karelian Research Centre, RAS Assignment topic (State registration no. 225011700925-0).

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DOI 10.25283/2223-4594