Accounting for the hall conductivity in the electromagnetic sounding of the Earth

V. S. Mogilatov, V. Plotkin

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

Abstract

Due to the presence of strong geomagnetic field, electric currents within the Earth are affected by the appearance of the Lorentz force producing additional extrinsic currents, which contribute to the total measured electromagnetic field. This effect, well known in physics as the Hall effect, is totally ignored in conventional geoelectric and geoelectromagnetic exploration. However, even very general and preliminary analysis shows that this effect is markedly present in geoelectromagnetic signals and, if not being counted, might lead to difficulties or to significant errors in the interpretation. In particular, the Hall effect causes the appearance of the effective anisotropy and magnetization of rocks, which are originally isotropic and nonmagnetic.

Original languageEnglish
Title of host publicationGeomodel 2017 - 19th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462822269
DOIs
Publication statusPublished - Sep 2017
Externally publishedYes
Event19th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development, Geomodel 2017 - Gelendzhik, Russian Federation
Duration: 11 Sep 201714 Sep 2017

Publication series

NameGeomodel 2017 - 19th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development
Volume2017-September

Conference

Conference19th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development, Geomodel 2017
CountryRussian Federation
CityGelendzhik
Period11.09.201714.09.2017

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