Investigasi Bidang Gelincir Tanah Longsor Menggunakan Metode Geolistrik Tahanan Jenis di Desa Kebarongan Kec. Kemranjen Kab. Banyumas

*Sugito Sugito  -  Program Studi Fisika Jurusan MIPA Fakultas Sains dan Teknik Unsoed, Jl. Dr. Soeparno No. 61 Karangwangkal Telp./Fax (0281) 638793 Purwokerto, Indonesia
Zaroh Irayani  -  Program Studi Fisika Jurusan MIPA Fakultas Sains dan Teknik Unsoed, Jl. Dr. Soeparno No. 61 Karangwangkal Telp./Fax (0281) 638793 Purwokerto, Indonesia
Indra Permana Jati  -  Program Studi Teknik Geologi Jurusan Teknik Fakultas Sains dan Teknik Unsoed, Indonesia
Received: 26 Mar 2012; Published: 28 Mar 2012.
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Abstract

Investigation of landslide slip surface using geoelectrical resistivity method has been conducted at Kebarongan Village, Kemranjen District, Banyumas Regency. Data acquisition by means Schlumberger and Wenner configuration.  Data processing and interpretation were using Progress version 3.0 and Res2Dinv version 3.54 softwares.  The output of Progress software were depth, number of layers, and values of rock resistivity.  Mean while the output of Res2Dinv were resistivity section, RMS, and depth of rock layers.  The interpretation result showed that at Kebarongan village lithology consist of four layers i.e. top soil, sandy clay, wet clay and sandy clay.  Slip surface is wet clay with depth of 10.31 until 14.21 m.  The slip surface orientation is same of slope area that is to south and the type of landslide is translational.   

 

Keywords: geoelectrical resistivity, landslide, slip surface, Kebarongan

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