The seabed TDEM towed by ROV for the ocean bottom hydrothermal deposits

K. Nakayama, A. Saito

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

    Abstract

    We are developing Time Domain EM technologies for the exploration of the ocean bottom hydrothermal mineral deposits. The two measuring systems of moving type and fixed type were introduced in 2012. Currently, new time domain system towed by the ROV was developed. The towing type measurement system promotes highly efficient operation and shows as low noise levels as the fixed type. It was tested at the Okinawa hydrothermal areas, as the results, the mineral deposits are clearly detected by the obtained apparent resistivity anomalies, and the new system is proved to be more practical for the survey of the ocean bottom mineral deposits than the previous two systems we have developed. In addition, we could observe the IP effects of the seabed minerals by the coincident loop measurements.

    Original languageEnglish
    Title of host publication22nd European Meeting of Environmental and Engineering Geophysics, Near Surface Geoscience 2016
    PublisherEuropean Association of Geoscientists and Engineers, EAGE
    Publication statusPublished - 2016
    Event22nd European Meeting of Environmental and Engineering Geophysics, Near Surface Geoscience 2016 - Barcelona, Spain
    Duration: 2016 Sep 42016 Sep 8

    Other

    Other22nd European Meeting of Environmental and Engineering Geophysics, Near Surface Geoscience 2016
    CountrySpain
    CityBarcelona
    Period16/9/416/9/8

    ASJC Scopus subject areas

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

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  • Cite this

    Nakayama, K., & Saito, A. (2016). The seabed TDEM towed by ROV for the ocean bottom hydrothermal deposits. In 22nd European Meeting of Environmental and Engineering Geophysics, Near Surface Geoscience 2016 European Association of Geoscientists and Engineers, EAGE.