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The ordovician-silurian boundary on the western slope of the Subpolar Urals

  • T. M. Beznosova
  • T. V. Maidl’
  • P. Männik
  • T. Martma
Article

Abstract

Data obtained using different methods: paleontological, sedimentological, event stratigraphy and C-isotope chemostratigraphy of a unique succession of the Upper Ordovician and lower Silurian, located on the western slope of the Subpolar Urals, are presented in this work. The data obtained made it possible to revise some existing ideas about the texture of the Upper Ordovician succession and clarify the position of the Ordovician-Silurian boundary in the region. In addition, the Upper Ordovician Yaptiknyrd Formation was correlated with the synchronous formations in Scotland and Estonia.

Keywords

stratigraphy Upper Ordovician lower Silurian brachiopods conodonts the δ13C values 

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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • T. M. Beznosova
    • 1
  • T. V. Maidl’
    • 1
  • P. Männik
    • 2
  • T. Martma
    • 2
  1. 1.Institute of Geology, Komi Research Center, Ural BranchRussian Academy of SciencesSyktyvkarRussia
  2. 2.Institute of GeologyTallinn University of TechnologyTallinn, EstoniaRussia

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