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Paleontological Journal

, Volume 52, Issue 7, pp 755–760 | Cite as

New Data on Permian Bivalves and the Age of the Volcanogenic Beds of the Arman-Viliga Folded Zone, Northeastern Asia

  • A. S. BiakovEmail author
  • I. L. Vedernikov
  • Yu. Yu. Ivanov
  • E. V. Kolesov
Article
  • 14 Downloads

Abstract

Taxonomic data on Permian bivalve mollusks and the structure of the middle part of essentially volcanogenic section on the Nyavlenga River in the northeastern Okhotsk Region, Armano-Viliga Folded Zone are reported for the first time. Fossil fauna is composed exclusively of Inoceramus-like bivalves of the genera Kolymia, Cigarella, Okhotodesma, and Maitaia, which frequently form shell rocks and date the Bocharian Horizon (upper part of the Wordian Stage) as the Middle Permian. Lithologic and paleontological characteristics of the beds are considered; it is shown that volcanites are widespread; turbidites and diamictites similar to those previously investigated in the Okhotsk and Ayan-Yuryakh basins are recorded. Permian kolymiids are figured.

Keywords:

Inoceramus-like bivalves Middle Permian volcanic deposits Arman-Viliga Folded Zone back-arc basins northeastern Asia 

Notes

ACKNOWLEDGMENTS

We are sincerely grateful to V.I. Davydov (University of Boise, United States) for help in extracting and dating of zircons.

This study was supported by the Russian Foundation for Basic Research (project nos. 14-05-00217, 17‑05-00109), the Russian Government Program for Competitive Growth of Kazan Federal University among World’s Leading Scientific and Education Centers, and the Ministry of Education and Sciences of the Russian Federation, contract no. 14.Y26.31.0029, within the framework of Resolution no. 220 of the Government of the Russian Federation.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. S. Biakov
    • 1
    • 2
    Email author
  • I. L. Vedernikov
    • 1
  • Yu. Yu. Ivanov
    • 1
  • E. V. Kolesov
    • 1
  1. 1.Shilo Northeast Interdisciplinary Scientific Research Institute, Far East Branch, Russian Academy of SciencesMagadanRussia
  2. 2.Kazan (Volga) Federal UniversityKazanRussia

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