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On Deep Electroconductivity of Tobol-Ishim Interfluve

  • V. P. Borisova
  • T. A. Vasilieva
  • S. L. Kostuchenko
  • E. B. FainbergEmail author
Conference paper
Part of the Springer Proceedings in Earth and Environmental Sciences book series (SPEES)

Abstract

The results of 1D and 2.5D modeling and inversion of amplitude and phase curves of magnetotelluric sounding in the Tobol-Ishim interfluve of Western Siberia are presented. Cross sections of the electrical conductivity of the crust and asthenosphere are constructed as well. It is suggested that there is a conductive layer lying at a depth of ~60–70 km. A decrease in the electrical resistivity of the overlying crustal layer from 1000–3000 to ~300 Ω-m which may be a sign of an increase in the conductivity of the earth’s crust is noted.

Keywords

Magnetotellurics Western Siberia Conductive layer 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • V. P. Borisova
    • 1
  • T. A. Vasilieva
    • 1
  • S. L. Kostuchenko
    • 2
  • E. B. Fainberg
    • 1
    Email author
  1. 1.Geoelectromagnetic Research Centre—Schmidt Institute of Physics of the EarthMoscowRussia
  2. 2.Limited Liability Company “Rosgeology”MoscowRussia

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