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

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

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.

本文言語英語
ホスト出版物のタイトル23rd European Meeting of Environmental and Engineering Geophysics
出版社European Association of Geoscientists and Engineers, EAGE
ISBN(電子版)9789462822238
出版ステータス出版済み - 2017
外部発表はい
イベント23rd European Meeting of Environmental and Engineering Geophysics - Malmo, スウェーデン
継続期間: 9 3 20179 7 2017

出版物シリーズ

名前23rd European Meeting of Environmental and Engineering Geophysics

その他

その他23rd European Meeting of Environmental and Engineering Geophysics
国/地域スウェーデン
CityMalmo
Period9/3/179/7/17

All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学
  • 地球化学および岩石学
  • エネルギー工学および電力技術

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