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V. A. Shevnin
V. A. Shevnin
Moscow State University
Russia
Moscow State University
Russia
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Articles

  • Date submitted
    2016-11-10
  • Date accepted
  • Date published

Difference in galvanic and inductive methods' results, new examples for DIP and BIEP

Difference in apparent resistivity values determined  in  galvanic and inductive  electrical and electromagnetic methods depends on macroanisotropy of layered cross-section and decreased penetration depth of galvanic methods without changing penetration depth of inductive methods. Joint influence of these two factors in case of high contrast of layers' resistivities results in difference in several tens of apparent resistivity values.

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V. A. Shevnin, A. A. Bobachev, I. N. Modin, T. V. Yalov Difference in galvanic and inductive methods' results, new examples for DIP and BIEP. Journal of Mining Institute. Vol 200. p. 104.
  • Date submitted
    2016-11-10
  • Date accepted
  • Date published

Anisotropy investigations with azimuthal self potential measurements

New field technology for studying anisotropy of hydraulic properties in fractured rocks on azimuthal self potential (SP) measurements, developed by D.N. Wishart and L. Slater, is considered and used to study water filtration in loose grain  sediments of river floodplain. Azimuthal SP diagrams allow finding direction of groundwater filtration and can add to traditional azimuthal resistivity survey.

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V. A. Shevnin, S. A. Erokhin, A. M. Pavlova Anisotropy investigations with azimuthal self potential measurements. Journal of Mining Institute. Vol 200. p. 108.