Induced polarization of rocks containing passivated metallic particles

G. Gurin, Yu Ilyin, K. Titov

Research output

Abstract

In this paper, we presented data obtained with Induced Polarization (IP) measurements on artificial mixtures of spherical metallic particles and sand. The particles made of nickelized steel were fully or partially covered by colored varnish to model natural semi-conducting grains isolated from pore water by carbonate or quartz shells. We measured IP effect in time domain with four models where different portions of the particle surface were isolated. We characterized IP by the total chargeability and relaxation time. We found that the total chargeability and the relaxation time strongly decreased with increase of the isolated part of the particle surface, which means that isolated parts of the surface is passivated. For the mixture included fully isolated particles the IP response was found to be the same as the sand response. These findings suggest that part of semi-conducting minerals, which is isolated from pore water, does not polarize, and, therefore, cannot be detected by IP survey.

Original languageEnglish
Title of host publicationEngineering and Mining Geophysics 2018 - 14th Conference and Exhibition
PublisherEuropean Association of Geoscientists and Engineers
ISBN (Electronic)9789462822481
ISBN (Print)9789462822481
Publication statusPublished - 1 Jan 2018
Event14th Conference and Exhibition on Engineering and Mining Geophysics 2018 - Almaty
Duration: 23 Apr 201827 Apr 2018

Publication series

NameEngineering and Mining Geophysics 2018 - 14th Conference and Exhibition

Conference

Conference14th Conference and Exhibition on Engineering and Mining Geophysics 2018
CountryKazakhstan
CityAlmaty
Period23/04/1827/04/18

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Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Industrial and Manufacturing Engineering
  • Geotechnical Engineering and Engineering Geology

Cite this

Gurin, G., Ilyin, Y., & Titov, K. (2018). Induced polarization of rocks containing passivated metallic particles. In Engineering and Mining Geophysics 2018 - 14th Conference and Exhibition (Engineering and Mining Geophysics 2018 - 14th Conference and Exhibition). European Association of Geoscientists and Engineers.