A Case Study on Resistivity and Spectral IP properties of modern seafloor hydrothermal deposits in Japan

S. Komori, Y. Masaki, W. Tanikawa, J. Torimoto, Y. Ohta, M. Makio, L. Maeda, J. Ishibashi, T. Nozaki, O. Tadai, H. Kumag

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Resistivity and induced polarization (IP) rock properties are effectively used in the exploration of massive sulphide deposits, formed by ancient seafloor hydrothermal activity. The present study has investigated these properties using sulphide-bearing drill core samples taken from the Ihaya North Knoll and the Iheya-Small Ridge, the location of modern seafloor hydrothermal deposits in Japan. Overall, the results showed that resistivity of sulphide-bearing sediments correlates with porosity, rather than sulphide content. Furthermore, the intensity of spectral IP (phase) was found to depend on the amount of the sulphide minerals, which has a peak at a high frequency range (several kHz). These features are similar to that of typical fine-grained disseminated sulphides. In contrast to the sediments, a massive sulphide sample was found to have unique IP property, possibly due to its large sulphide mineral particles.

Original languageEnglish
Title of host publication23rd European Meeting of Environmental and Engineering Geophysics
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462822238
Publication statusPublished - Jan 1 2017
Externally publishedYes
Event23rd European Meeting of Environmental and Engineering Geophysics - Malmo, Sweden
Duration: Sep 3 2017Sep 7 2017

Publication series

Name23rd European Meeting of Environmental and Engineering Geophysics

Other

Other23rd European Meeting of Environmental and Engineering Geophysics
CountrySweden
CityMalmo
Period9/3/179/7/17

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geochemistry and Petrology
  • Energy Engineering and Power Technology

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  • Cite this

    Komori, S., Masaki, Y., Tanikawa, W., Torimoto, J., Ohta, Y., Makio, M., Maeda, L., Ishibashi, J., Nozaki, T., Tadai, O., & Kumag, H. (2017). A Case Study on Resistivity and Spectral IP properties of modern seafloor hydrothermal deposits in Japan. In 23rd European Meeting of Environmental and Engineering Geophysics (23rd European Meeting of Environmental and Engineering Geophysics). European Association of Geoscientists and Engineers, EAGE.