Deteksi Akuifer Air Tanah menggunakan Metode Geofisika Tahanan Jenis Konfigurasi Schlumberger di Desa Mangsit, Lombok Barat
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Abstract
This study aims to detect groundwater aquifer layers using resistivity methods with Schlumberger configuration in Mangsit Village, West Lombok. This area is located on the coast and serves as a tourism destination. Aquifer layers are layers capable of storing and flowing groundwater, so the existence of this layer is very important to explore. Field data acquisition was carried out using 3 sounding measurement points, VES 1, VES 2, and VES 3. The measurement length used was 500 meters. The field measurement data were then processed using IP2WIN software to obtain 1-dimensional resistivity log data. The log data were then interpreted into several subsurface rock layers. The interpretation results indicate the potential for groundwater aquifers at a depth of 46-131 meters at measurement point 1 (VES 1). At measurement point 2 (VES 2) the aquifer layer was identified at a depth of 45-127 meters. At measurement point 3 (VES 3) the aquifer layer was identified at a depth of 42-107 meters. The aquifer layer was identified as lapilli tuff rock. This rock can be a fairly good aquifer because it can store groundwater. The results of the study indicate that the Schlumberger configuration resistivity method can identify aquifer layers accurately and efficiently. These results are expected to be used as recommendations to local governments in exploiting groundwater so that water resources can be properly managed based on resistivity data.
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