New Minimal 87Sr/86Sr Values in Permian Biogenic Carbonates of the Omolon Massif (Northeastern Asia)
- Authors: Biakov A.S.1,2, Brynko I.V.1, Bond D.P.3, Harvey J.4, Goryachev N.A.1, Vedernikov I.L.4, Filimonova T.V.5
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Affiliations:
- Shilo North-East Interdisciplinary Scientific Research Institute, Far East Branch of the Russian Academy of Sciences
- Kazan Federal University
- Department of Geography, Geology and Environment, University of Hull
- School of Earth and Environment, University of Leeds
- Geological Institute, Russian Academy of Sciences
- Issue: Vol 488, No 2 (2019)
- Pages: 1143-1147
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/195480
- DOI: https://doi.org/10.1134/S1028334X19100027
- ID: 195480
Cite item
Abstract
For the first time very low values (up to 0.706707) of the ratio 87Sr/86Sr were recorded in the biogenic carbonates of the Omolon massif (Northeast Asia) of the Capitanian age. These results are in good agreement with previously obtained data on limestones in Japan (Kani et al., 2013; 2018). In general, the strontium ratio curve constructed by us repeats the well-known world trend, differing by its somewhat underestimated (by an average of 0.0005–0.0008) values. The Capitanian strontium minimum can be associated with the entry into the ocean of significant amounts of lightweight femic strontium due to a sharp increase in paleospreading. The maximum values of the strontium ratio, obtained from the middle part of the Intomodesma evenicum bivalve Subzone are 0.706986, which corresponds to the lower part of the Changhsingian stage.
About the authors
A. S. Biakov
Shilo North-East Interdisciplinary Scientific Research Institute, Far East Branch of the Russian Academyof Sciences; Kazan Federal University
Author for correspondence.
Email: abiakov@mail.ru
Russian Federation, Magadan, 685000; Kazan, 420008
I. V. Brynko
Shilo North-East Interdisciplinary Scientific Research Institute, Far East Branch of the Russian Academyof Sciences
Email: abiakov@mail.ru
Russian Federation, Magadan, 685000
D. P. G. Bond
Department of Geography, Geology and Environment, University of Hull
Email: abiakov@mail.ru
United Kingdom, Hull
J. Harvey
School of Earth and Environment, University of Leeds
Email: abiakov@mail.ru
United Kingdom, Leeds
N. A. Goryachev
Shilo North-East Interdisciplinary Scientific Research Institute, Far East Branch of the Russian Academyof Sciences
Email: abiakov@mail.ru
Russian Federation, Magadan, 685000
I. L. Vedernikov
School of Earth and Environment, University of Leeds
Email: abiakov@mail.ru
United Kingdom, Leeds
T. V. Filimonova
Geological Institute, Russian Academy of Sciences
Email: abiakov@mail.ru
Russian Federation, Moscow, 119017