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Title: ORE-BEARING STRUCTURE OF THE PECHENGA ORE DISTRICT (ARCTIC ZONE OF RUSSIA)
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ORE-BEARING STRUCTURE OF THE PECHENGA ORE DISTRICT (ARCTIC ZONE OF RUSSIA)
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1314-2704
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English
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19
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1.1
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The Pechenga ore region spatially combines platinum-metal plutogenic, copper?nickel volcano?plutogenic, uranium-ore and gold-ore fluid-metasomatic systems, which are formed under different geotectonic regimes in the Karelian and Svecofennian (2.4?1.6 billion years) stages of development of the Baltic shield, as well as lead-zinc mineralization of the Paleozoic age. At the same time, the role of mantle sources and processes in the formation of ore mineralization decreased, and intra-crustal mineralization increased. This explains the gradual transition of platinum-metal mineralization in connection with the ultrabasites to copper?Nickel sulfide in association with gabbro?wechrlite intrusions and further to metamorphic and hydrothermal?metasomatic uranium and gold mineralization. The gold-ore mineralization in the core of the borehole SG-3 is considered in detail, where it is found at a depth of 9500-11000 m, where it spatially coincides with the zones of regressive changes. The possibility of the presence of low-sulphide platinum-metal mineralization by analogy with the deposits of the Norilsk ore region is considered for the first time.
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conference
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19th International Multidisciplinary Scientific GeoConference SGEM 2019
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19th International Multidisciplinary Scientific GeoConference SGEM 2019, 30 June - 6 July, 2019
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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407-414
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30 June - 6 July, 2019
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website
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cdrom
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4822
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ore-bearing structures; ore deposits and mineralization; Pechenga ore district; Arctic zone of Russia
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