U–Th–He Dating of Pyrite from the Uzelga Copper-Zinc Massive Sulfide Deposit (South Urals, Russia): First Application of a New Geochronometer
- Autores: 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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Afiliações:
- 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
- Edição: Volume 485, Nº 2 (2019)
- Páginas: 368-371
- Seção: Geology
- URL: https://ogarev-online.ru/1028-334X/article/view/194778
- DOI: https://doi.org/10.1134/S1028334X19040263
- ID: 194778
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Resumo
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).
Sobre autores
O. Yakubovich
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences; St. Petersburg State University
Autor responsável pela correspondência
Email: olya.v.yakubovich@gmail.com
Rússia, St. Petersburg, 199034; St. Petersburg,
199034
I. Vikentyev
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Rússia, Moscow, 119017
O. Zarubina
Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Rússia, Irkutsk, 664033
N. Bryanskiy
Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Rússia, Irkutsk, 664033
B. Gorokhovskii
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Rússia, St. Petersburg, 199034
A. Kotov
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Rússia, St. Petersburg, 199034
S. Dril
Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Rússia, Irkutsk, 664033
N. Bortnikov
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences
Email: olya.v.yakubovich@gmail.com
Rússia, Moscow, 119017
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