Paleoproterozoic Age of Carbonates and Trondhjemites of the Central Azov Group: Sr Isotope Chemostratigraphy and U–Pb Geochronology
- Authors: Kuznetsov A.B.1, Lobach–Zhuchenko S.B.1, Kaulina T.V.2, Konstantinova G.V.2
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Affiliations:
- Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
- Geological Institute, Kola Science Center, Russian Academy of Sciences
- Issue: Vol 484, No 2 (2019)
- Pages: 142-145
- Section: Geology
- URL: https://ogarev-online.ru/1028-334X/article/view/194591
- DOI: https://doi.org/10.1134/S1028334X19020211
- ID: 194591
Cite item
Abstract
The Sr isotope characteristic of carbonate rocks in the Central Azov Group has been reported (0.70322–0.70352), the Nd model age of silicate sediments has been calculated (2.34–2.31 Ga), and the U–Pb age of trondhjemites (2052 ± 5 Ma) breaking through carbonates was determined. According to the data obtained, the marine sedimentary cover of the Azov block making up the Early Precambrian Sarmatia Continent was formed in the Early Paleoproterozoic 2.23–2.34 Ga ago.
About the authors
A. B. Kuznetsov
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Author for correspondence.
Email: antonbor9@mail.ru
Russian Federation, St. Petersburg, 199034
S. B. Lobach–Zhuchenko
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Email: antonbor9@mail.ru
Russian Federation, St. Petersburg, 199034
T. V. Kaulina
Geological Institute, Kola Science Center, Russian Academy of Sciences
Email: antonbor9@mail.ru
Russian Federation, Apatity, 184200
G. V. Konstantinova
Geological Institute, Kola Science Center, Russian Academy of Sciences
Email: antonbor9@mail.ru
Russian Federation, Apatity, 184200
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