Email this article High-Temperature Beryl from Vugless Granite Pegmatites of the Suprunovskoye Deposit, Irkutsk Oblast, Russia
- Authors: Gerasimova E.I.1,2, Prokof’iev V.Y.3, Smirnov S.Z.4, Kovalskaya T.N.5
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Affiliations:
- Vernadsky State Geological Museum, Russian Academy of Sciences
- Fersman Mineralogical Museum, Russian Academy of Sciences
- Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences
- Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
- Institute of Experimental Mineralogy, Russian Academy of Sciences
- Issue: Vol 57, No 7 (2019)
- Pages: 829-834
- Section: Short Communications
- URL: https://journals.rcsi.science/0016-7029/article/view/156243
- DOI: https://doi.org/10.1134/S001670291907005X
- ID: 156243
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Abstract
New data were obtained on the chemical composition of beryl from the Suprunovskoye deposit (wt %): 66.10 SiO2, 0.51 Na2O, 17.99 Al2O3, 0.37 MgO, 0.03 K2O, 0.02 CaO, 0.58 FeO, and 13.70 BeO (calculated). Fluid and melt inclusions were investigated for the first time in this mineral. It was found that the beryl was formed during late stages of granite magmatism from a specific pegmatite silicate melt or a water–silicate liquid enriched in water (>7 wt %), heavy REE (La/Yb = 0.48), and lithium, and depleted in fluorine and boron at a temperature of ~700°C and a pressure of ~6 kbar.
About the authors
E. I. Gerasimova
Vernadsky State Geological Museum, Russian Academy of Sciences; Fersman Mineralogical Museum, Russian Academy of Sciences
Author for correspondence.
Email: ekgera@gmail.com
Russian Federation, Moscow, 125009; Moscow, 119071
V. Yu. Prokof’iev
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry,Russian Academy of Sciences
Author for correspondence.
Email: vpr2004@rambler.ru
Russian Federation, Moscow, 119017
S. Z. Smirnov
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: ssmr@igm.nsc.ru
Russian Federation, Novosibirsk, 630090
T. N. Kovalskaya
Institute of Experimental Mineralogy, Russian Academy of Sciences
Author for correspondence.
Email: tatiana76@iem.ac.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432
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