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Doklady Earth Sciences

, Volume 488, Issue 2, pp 1143–1147 | Cite as

New Minimal 87Sr/86Sr Values in Permian Biogenic Carbonates of the Omolon Massif (Northeastern Asia)

  • A. S. BiakovEmail author
  • I. V. Brynko
  • D. P. G. Bond
  • J. Harvey
  • N. A. Goryachev
  • I. L. Vedernikov
  • T. V. Filimonova
GEOLOGY
  • 21 Downloads

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.

Notes

ACKNOWLEDGMENTS

The authors thank the reviewers for comments and suggestions that significantly improved the text.

FUNDING

Our study was supported by the Russian Foundation for Basic Research (project no. 17-05-00109) and the Ministry of Science and Higher Education of the Russian Federation under contract no. 14.Y26.31.0029 as part of the implementation of Government Decree no. 220. DPGB received financial support from the  Natural Environment Research Council (grant no. NE/J01799X/1).

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. S. Biakov
    • 1
    • 2
    Email author
  • I. V. Brynko
    • 1
  • D. P. G. Bond
    • 3
  • J. Harvey
    • 4
  • N. A. Goryachev
    • 1
  • I. L. Vedernikov
    • 4
  • T. V. Filimonova
    • 5
  1. 1.Shilo North-East Interdisciplinary Scientific Research Institute, Far East Branch of the Russian Academy of SciencesMagadanRussia
  2. 2.Kazan Federal UniversityKazanRussia
  3. 3.Department of Geography, Geology and Environment, University of HullHullUnited Kingdom
  4. 4.School of Earth and Environment, University of LeedsLeedsUnited Kingdom
  5. 5.Geological Institute, Russian Academy of SciencesMoscowRussia

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