| Инд. авторы: | Starikova A.E., Sklyarov E.V., Sharygin V.V. |
| Заглавие: | Y-REE Mineralization in Biotite-Arfvedsonite Granites of the Katugin Rare-Metal Deposit, Transbaikalia, Russia |
| Библ. ссылка: | Starikova A.E., Sklyarov E.V., Sharygin V.V. Y-REE Mineralization in Biotite-Arfvedsonite Granites of the Katugin Rare-Metal Deposit, Transbaikalia, Russia // Doklady Earth Sciences. - 2019. - Vol.487. - Iss. 1. - P.800-803. - ISSN 1028-334X. - EISSN 1531-8354. |
| Внешние системы: | DOI: 10.1134/S1028334X19070080; SCOPUS: 2-s2.0-85071495826; WoS: 000482992100014; |
| Реферат: | eng: This paper reports on the results of studies of the carbonate-fluoride isolations with extremely high Y and REE concentrations from biotite-arfvedsonite granite of the Katugin rare metal deposit. We obtained the chemical data on that minerals that compose these isolations-gagarinite-(Y), tveitite-(Y), fluocerite-(Ce), bastnaesite, and fluornatropyrochlore. A carbonate-fluoride globule with a well-preserved crystallization order was revealed in quartz of the host granite. This finding might be evidence of silicate-fluorine immiscibility suggested before for the Y-REE isolations in the Katugin granites. We assumed that the fluoride melt occurred at the magmatic stage of the formation of biotite-arfvedsonite granite, which resulted in depletion of the host granite with fluorine and the redistribution of the REE and Y in the fluoride salt melt.
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| Ключевые слова: | GENESIS; CRYOLITE; AGE; |
| Издано: | 2019 |
| Физ. характеристика: | с.800-803 |