PENENTUAN KEDALAMAN BATUAN DASAR MENGGUNAKAN METODE GEOLISTRIK TAHANAN JENIS DENGAN MEMBANDINGKAN KONFIGURASI DIPOLE-DIPOLE DAN WENNER DI BUKIT APIT PUHUN KECAMATAN GUGUK PANJANG KOTA BUKITTINGGI
Abstract
Bukit Apit Puhun Bukittinggi area is located at Sianok fault zone. This area is potensially occur tectonic activity such as earthquakes. Tectonic activity could disturb the stability of the bedrock. The aim of this research was to determine the resistivity and to depth of basement bedrock in Bukit Apit Puhun Bukittinggi area. This research used Robust 2D inversion Geoelectrical data with Dipole-dipole configuration and Smoothness-Constraint Least Squares with Wenner configuration. The Data of this research were taken five track using ARES (Automatic Resistivitymeter). Each of data were processed and interpreted with using Robust 2D and Smoothness-Constraint Least Squares inversion. The result of this research showed that type of basement bedrock in Bukit Apit Puhun Guguk Panjang was an igneous groups, namely Andesite. Resistivity of Andesite bedrock were varies on the each track. The resistivy of Andesite was 345 ?m 39.039 ?m. Dephts of Andesite bedrock were varies, which generally more than 30 meters deepness at Bukit Apit Puhun Bukittinggi area
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