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Paper Title for Landslide Identifications Based on Geology and Geoelectricity Mapping Analysis, Study Area: Road Province Pacitan-Ponorogo, East Java, Indonesia.
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE-HAGI 1st Asia Pacific Meeting on Near Surface Geoscience and Engineering, Apr 2018, Volume 2018, p.1 - 6
Abstract
Understanding of landslide mechanism was imperative to appropriate the mitigation geotechnical methods. Engineering geological investigation and geoelectrical dipole-dipole resistivity analysis were carried out in the studied area to elucidate the mechanism of the landslide. The engineering geological investigation consists of local topographical mapping. The geoelectrical dipole-dipole resistivity analysis assessment of the problems affected landslide was conducted by a sub-surface imagine using resistivity contrast. The results presented in this paper successfully detect fractures at various depths and their position with the resistivity low contrasts as claystone is among the high-resistivity zones (volcanic rock). Low resistivity zone has a pattern with a slope of ∼45 degrees to the East and acted as field shear-surface the movement of soil in landscape survey. Interpretation of resolution lithology and shear-surface fields ranging between 25 – 30 m.