An experimental study of the influence of the earth’s magnetic field on the transient process in a geological environment

V. Mogilatov, V. Potapov, A. Shein, V. Gurev, P. Osipova

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

The results of field experiments to detect the Hall effect during earth sounding by the method of establishing the electromagnetic field are considered. We are talking about the problem of interaction of the earth’s magnetic field and secondary currents in geoelectromagnetic sounding, which was previously considered only theoretically. This interaction, in particular, is manifested in the effective anisotropy of the conductivity of rocks caused by the appearance of the Hall’s conductivity, which can be considered as a new geoelectric parameter, closely related to the material composition of the geological medium. The article analyzes the signals received by a special electrical installation and assesses the Hall’s conductivity. The experimental material was obtained in the field season of 2018, and confirmed and supplemented in the work of 2019. We also attempt to explain the signals of a new method of sounding becoming (vertical electric current soundings). VECS has already been repeatedly used for delineation of deposits, and systematically a successful result was obtained in the form of a unipolar signal anomaly over the deposit. Analysis of field signals definitely indicates that they are generated by a modified host thickness above the deposit (halo). This is a significant, favorable experimental fact, very confidently confirmed in various fields, but it has not yet been possible to explain it. So we propose this time to consider the possible influence of the Earth’s magnetic field.

Original languageEnglish
Title of host publicationSaint Petersburg 2020 - Geosciences
Subtitle of host publicationConverting Knowledge into Resources
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462823280
Publication statusPublished - 2020
Event2020 Saint Petersburg International Conference and Exhibition - Geosciences: Converting Knowledge into Resources - Saint Petersburg, Russian Federation
Duration: 6 Apr 20209 Apr 2020

Publication series

NameSaint Petersburg 2020 - Geosciences: Converting Knowledge into Resources

Conference

Conference2020 Saint Petersburg International Conference and Exhibition - Geosciences: Converting Knowledge into Resources
CountryRussian Federation
CitySaint Petersburg
Period06.04.202009.04.2020

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