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Polarization Characteristics of the ELF–SLF Magnetic Field Excited by a Linear Vibrator

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Abstract

The paper considers methodological issues of solving the inverse problem of electromagnetic sound, based on the results of measuring the low-frequency magnetic field from two orthogonal antennas located on the Kola Peninsula in areas with different conductivity of the lithosphere. The polarization characteristics of the tangential magnetic field components are determined. They are compared with theoretical calculations using a plane-layered model of a wave propagation medium with homogeneous layers. Comparison of the theoretical calculations with the experimental data on the major axis of the polarization ellipse yields results consistent with existing concepts of the conductivity of the Kola Peninsula. Differences in the direction of the ellipse and ellipticity require complication in the model: the inclusion of faults in the lithosphere, as well as the anisotropy of the structures forming it.

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ACKNOWLEDGMENTS

The authors are grateful to A.A. Zhamaletdinov for the FENICS-2014 and FENICS-2019 experiments.

Funding

The study was supported by the Russian Foundation for Basic Research (project nos. 19-05-00823, 19-05-00528).

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Authors and Affiliations

  1. Polar Geophysical Institute, Russian Academy of Sciences, 183010, Murmansk, Russia

    E. D. Tereshchenko

  2. St. Petersburg Branch, Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, Russian Academy of Sciences (SPbF IZMIRAN), 199034, St. Petersburg, Russia

    P. E. Tereshchenko & A. E. Sidorenko

  3. St. Petersburg Scientific Center, Russian Academy of Sciences, 199034, St. Petersburg, Russia

    P. E. Tereshchenko

Authors
  1. E. D. Tereshchenko
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  2. P. E. Tereshchenko
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  3. A. E. Sidorenko
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Corresponding author

Correspondence to E. D. Tereshchenko.

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Tereshchenko, E.D., Tereshchenko, P.E. & Sidorenko, A.E. Polarization Characteristics of the ELF–SLF Magnetic Field Excited by a Linear Vibrator. Seism. Instr. 57, 321–328 (2021). https://doi.org/10.3103/S0747923921030130

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  • DOI: https://doi.org/10.3103/S0747923921030130

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