Analysis of potential landslide areas using geoelectric methods of resistivity in the Kastoba Lake, Bawean Island, Indonesia

Karimah, Karimah, Susilo, Adi, Suryo, Eko Andi, Rofiq, Aunur ORCID: https://orcid.org/0000-0001-9823-040X and Hasan, Muhammad F.R (2022) Analysis of potential landslide areas using geoelectric methods of resistivity in the Kastoba Lake, Bawean Island, Indonesia. Jurnal Penelitian Pendidikan IPA Journal of Research in Science Education, 8 (2). pp. 660-665. ISSN e_ISSN:2407-795X, p_ISSN:2460-2582

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Abstract

Kastoba Lake in Bawean Island Indonesia is a tourist attraction that has a level of vulnerability in landslide disasters. The landslides has been happen. From the large and small scale in the Kastoba Lake. Base on the problem, the landslides occured due to the field of derailment. According to the above statement, it was necessary to know the subsurface structure and the field of avalanche derailment in the kastoba lake area. This data was allowed by geophysical resistivity method which a dipole-dipole configuration with 4 measurement points. The acquisition of data was based on preliminary studies from the analysis of landslide vulnerability level maps (DEM Alos data processing) that have been done first. The results of lithological analysis with geoelectric resistivity methods in this research obtained three layers of subsurface structure, namely top soil (top layer) with a resistivity value of 7-110 Ωm, clay (middle layer) which was a resistivity value of 110-210 Ωm and lava (bottommost layer) which was a resistivity value of 210-357 Ωm. The field of gelincir in the research area was on the top layer of soil composed of weathering of rocks mixed with organic material or leaf/tree decay with an average depth of 7.25 meters. Thus, this research can be one of the parameters of landslide disaster mitigation in the development of geotourism in Kastoba Lake.

Item Type:	Journal Article
Keywords:	landslide; Gelincir field; geoeletrical resistivity; polished; lake Kastoba
Divisions:	Graduate Schools > Magister Programme > Graduate School of Islamic Studies
Depositing User:	Ph.D Aunur Rofiq
Date Deposited:	30 May 2022 14:42

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