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Title: RARE-EARTH MINERALIZATION IN GRANITES OF THE NORTH-EAST OF THE VERKHOYANSK-KOLYMA OROGEN
RARE-EARTH MINERALIZATION IN GRANITES OF THE NORTH-EAST OF THE VERKHOYANSK-KOLYMA OROGEN

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Vera Trunilina
10.5593/sgem2023/1.1/s01.17
10.5593/sgem2023/1.1
1314-2704
978-619-7603-56-9
English
23
1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Geology
The results of the study of granites of the north-east of the Verkhoyansk-Kolyma orogen bearing rare-earth mineralization are summarized in the article. Ore-bearing granites are classified as A-type of postorogenic and rift-related geodynamic conditions. Three groups are identified in them, differing in the origin and scale of the associated rareearth mineralization. The most ore-bearing granites are spatially and genetically related to alkaline–ultrabasic – alkaline-basic formations and formed within a long-lived hotspot from granite melt, generated from a fenitized crustal substrate under the influence of a flow of transmagmatic fluids. Granite massifs are limited ore-bearing, crystallized from melts generated in the Paleoproterozoic substrates of the lower crust under the influence of heat and fluids, related to the mantle magmas and bearing clear signs of mixing of basic and acidic melts during crystallization. These massifs are localized within the Indigirka crustal extension belt, where the presence of buried centers of the basic melts is assumed, which activation caused the re-melting of crustal substrates. Granites that do not bear signs of mantle-crustal interaction usually have only dispersed accessory rare-earth mineralization.
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conference
https://doi.org/10.5593/sgem2023/1.1/s01.17
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 03 - 09 July, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
133-146
03 - 09 July, 2023
website
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granites, ore content, rare-earth minerals, mantle-crustal interaction