Magnetotelluric Interpretation Of The Geothermal System Of The Kuju Volcano, Southwest Japan
Journal Article: Magnetotelluric Interpretation Of The Geothermal System Of The Kuju Volcano, Southwest Japan
AbstractA magnetotelluric study was carried out in the Kuju volcanic area, southwest Japan, to clarify the geothermal structure of the volcanic body, as part of a fundamental study of the utilization of volcano energy conducted by the Geothermal Research Institute of Kyushu University. Two-dimensional (2-D) resistivity models based on MT data of the Kuju volcano and a three-dimensional (3-D) model of the Kuju-Iwoyama area have been constructed by a finite-element modeling technique. The 2-D models have shown some low-resistivity zones (less than 10 ohm-m) corresponding to fracture zones in the volcanic body. The 3-D model of the Kuju-Iwoyama area with the most intense geothermal activity, has revealed a very low-resistivity zone beneath the fumarolic area with a resistivity of the order of 1 ohm-m. Temperature, porosity and deposition of alteration minerals are considered as the causes of this low-resistivity zone.
- T. Mogi and S. Nakama
- Published Journal
- Journal of Volcanology and Geothermal Research, 1993
- Not Provided
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T. Mogi,S. Nakama. 1993. Magnetotelluric Interpretation Of The Geothermal System Of The Kuju Volcano, Southwest Japan. Journal of Volcanology and Geothermal Research. (!) .