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| | Abstract | | We performed an electric and electromagnetic suevey in the Tozawa landslide area. By this investigation, the landslide topography and relations with the resistivity became clear. Tozawa landslide area generally showed low resistivity values. The earth and sand experienced a compression and they showed high resistivity values and the mountaneous topography. In addition, a big rock was sometimes included in the earth and sand, they showed very high resistivity. And we can get the resistivity distribution that we could expect the shape of the lansdlide in a deep part. The phase information of the electromagnetic survey showed the usefulness of the expectation of the underground structure of the landslide area. |
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