Email this article Y-REE mineralization in biotite-arfvedsonite granites of the Katugin rare-metal deposit, Transbaikalia, Russia
- Authors: Starikova A.E.1,2, Sklyarov E.V.3,4, Sharygin V.V.1,2
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Affiliations:
- Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
- Novosibirsk State University
- Institute of the Earth`s Crust of the Siberian Branch of the Russian Academy of Sciences
- Far Eastern Federal University
- Issue: Vol 487, No 1 (2019)
- Pages: 88-92
- Section: Geochemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/15399
- DOI: https://doi.org/10.31857/S0869-5652487188-92
- ID: 15399
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Abstract
We provide the results of study of the extremely enriched in Y-REE carbonate-fluorine isolations from biotite-arfvedsonite granite of the Katugin rare metal deposit. New chemical data of isolations mineral phases - gagarinite-(Y), tveitite-(Y), fluocerite-(Ce), basnaesite, fluornatropyroclore, are delivered. Carbonate-fluoride globule in quartz of hosting granite gives possibility to estimate crystallization order. This finding might be the evidence of silicate-fluorine immiscibility suggested before for Y-REE segregations in the Katugin granites. Fluorine melt segregation took likely place at the magmatic stage of biotite-arfvedsonite granite formation. It causes host granite depletion with fluorine and redistribution of REE and Y in fluorine salt melt.
About the authors
A. E. Starikova
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Author for correspondence.
Email: starikova@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
E. V. Sklyarov
Institute of the Earth`s Crust of the Siberian Branch of the Russian Academy of Sciences; Far Eastern Federal University
Email: starikova@igm.nsc.ru
Corresponding Member of the Russian Academy of Sciences
Russian Federation, 128, Lermontova street, Irkutsk, 664033; 8 Sukhanova St., Vladivostok, 690950V. V. Sharygin
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: starikova@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
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