Email this article U-Th-He dating of pyrite from the Uzelga Copper-Zinc massive sulfide deposit (South Urals, Russia): first application of a new geochronometer
- Authors: Yakubovich O.V.1,2, Vikentyev I.V.3, Zarubina O.V.4, Bryanskiy N.V.4, Gorokhovskii B.M.1, Kotov A.B.1, Dril S.I.4, Bortnikov N.S.3
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Affiliations:
- Institute of Precambrian Geology and Geochronology of the Russian Academy of Sciences
- Saint-Petersburg State University
- Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
- Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences
- Issue: Vol 485, No 6 (2019)
- Pages: 708-712
- Section: Geology
- URL: https://journals.eco-vector.com/0869-5652/article/view/14438
- DOI: https://doi.org/10.31857/S0869-56524856708-712
- ID: 14438
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Abstract
Based on a study of pyrite from the Uzelga Cu-Zn volcanogenic massive sulfide (VMS) deposit (South Urals) the age of ore mineralization was first determined with the direct age-dating method, based on the fraction of radiogenic helium, incorporated into the pyrite crystal lattice from submicron inclusions of U and Th minerals. Taking into account the measurement errors, the obtained age of 377 ± 8 Ma (MSWD = 1.2) is quite consistent with the independent age dates available for the ore mineralization (Late Eifelian-Early Givetian, 385-390 Ma).
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About the authors
O. V. Yakubovich
Institute of Precambrian Geology and Geochronology of the Russian Academy of Sciences; Saint-Petersburg State University
Author for correspondence.
Email: olya.v.yakubovich@gmail.com
Russian Federation, 2, Makarova embankment, St.Petersburg, 199034; 7/9, Universitetskaya embankment, Saint-Petersburg, 199034
I. V. Vikentyev
Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, 35, Staromonetny, Moscow, 119017
O. V. Zarubina
Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, PBox 9, 1a, Favorsky street, Irkutsk, 664033
N. V. Bryanskiy
Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, PBox 9, 1a, Favorsky street, Irkutsk, 664033
B. M. Gorokhovskii
Institute of Precambrian Geology and Geochronology of the Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, 2, Makarova embankment, St.Petersburg, 199034
A. B. Kotov
Institute of Precambrian Geology and Geochronology of the Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, 2, Makarova embankment, St.Petersburg, 199034
S. I. Dril
Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, PBox 9, 1a, Favorsky street, Irkutsk, 664033
N. S. Bortnikov
Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Academician of the Russian Academy of Sciences
Russian Federation, 35, Staromonetny, Moscow, 119017References
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