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| | Abstract | | We have been doing a research about an integrated approach using various geophysical techniques for active fault investigations in multiple scale under the research contract with the Japan Nuclear Energy Safety Organization. It is expected that the application of various geophysical techniques can delineate images of active fault on multiple scale, from shallow to deep, and in various physical views. We have chosen a Kushibiki fault zone in Saitama prefecture as a study area and applied mainly electric and electromagnetic methods at two sites, Site 1 and Site 2, in the FY 2009. At Site 1, lateral heterogeneity is not clear in shallow resistivity distributions, but a significant contrast is recognized in deep conductive zones. At Site 2, the resultant resistivity sections are very consistent with previous results of boring and trench surveys. |
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