Identification of Alteration Zones Based on Resistivity and Induced Polarization Geoelectric Survey

Air Putih, Lebong Regency's geothermal field, is near gold mining. The relationship between the two can be illustrated in type of rock alteration. study aims to identify alteration zone caused by Regency system. It was described correlation rocks' resistivity and chargebility values based on geoelectric measurement. Two tracks spread along Putih tour, with a track length 240 meters, were used see variations chargeability depth potential due deeper current penetration determine area. results field measurements are form 2D models processed Res2DinvX64 software. According analysis, subsurface lithology research area relatively same because location measurement lines still close together; namely, there wet valley rocks alterated layers. Pores cause layers found conductive areas filled fluid or water at high temperatures. evidenced detection manifestations surface warm soil, rocks, steamy small holes containing grains. higher temperature pressure, lower value rock-specific resistance. At tourist Regency, it that prophylitic several minerals andesite lava, breccia, tuff, soil.