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, Russian Academy of Sciences
- St. Petersburg State University
- Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences
- Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences
- Issue: Vol 485, No 2 (2019)
- Pages: 368-371
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/194778
- DOI: https://doi.org/10.1134/S1028334X19040263
- ID: 194778
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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).
About the authors
O. V. Yakubovich
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences; St. Petersburg State University
Author for correspondence.
Email: olya.v.yakubovich@gmail.com
Russian Federation, St. Petersburg, 199034; St. Petersburg,
199034
I. V. Vikentyev
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, Moscow, 119017
O. V. Zarubina
Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, Irkutsk, 664033
N. V. Bryanskiy
Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, Irkutsk, 664033
B. M. Gorokhovskii
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, St. Petersburg, 199034
A. B. Kotov
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, St. Petersburg, 199034
S. I. Dril
Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, Irkutsk, 664033
N. S. Bortnikov
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Russian Federation, Moscow, 119017
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