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Karimah, Karimah, Susilo, Adi, Suryo, Eko Andi, Rofiq, Aunur 
ORCID: https://orcid.org/0000-0001-9823-040X and Hasan, Muhammad F.R
(2022)
3D modelling of geoelictrical resistivity data to ditermine direction of landslides in Kastoba Lake, Bawean Island, Indonesia.
Jurnal Penelitian Pendidikan IPA, 7 (1).
pp. 1-8.
ISSN 2407795X
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11360.pdf - Published Version Available under License Creative Commons Attribution. Download (879kB) | Preview |
Abstract
Landslides are one of the factors caused by subsurface structures that are not compact, and have low density or resistivity values due to changes in groundwater. Rainwater that infiltrates into the ground will reach to an impermeable layer which is identified as a slip plane. This research was conducted in the Kastoba Lake area, Bawean Island, Indonesia. The purpose of this study is to determine the slip plane and the direction of the landslide in the studied area. Data acquisition was carried out based on a preliminary study of residual anomaly contour analysis from gravity data, then geoelectric data acquisition was carried out in the studied area. The results of lithological analysis on 3D geoelectric resistivity modeling in this study obtained three layers of subsurface structures, namely topsoil, clay, and lavas. The slip plane of the study area is above the clay layer (7.25 meters depth). The results of the 3D interpretation indicated that the direction of the landslide was towards the north, as evidenced by the existence of public information that the area studied had landslides with the avalanche direction towards the north. For further analysis, a factor of safety analysis is needed based on the analysis of the bore hole drilling method in the studied area.
| Item Type: | Journal Article |
|---|---|
| Keywords: | geoelectrical resistivity; gravity; slip zone; landslide; Kastoba Lake |
| Subjects: | 04 EARTH SCIENCES > 0403 Geology > 040309 Petroleum and Coal Geology |
| Divisions: | Graduate Schools > Magister Programme > Graduate School of Islamic Studies |
| Depositing User: | Ph.D Aunur Rofiq |
| Date Deposited: | 18 Aug 2022 13:12 |
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