Geophysical Exploration in Hot Springs Region Soppeng Regency, Indonesia

Abstract

Surface water is coming from rivers, rain, lakes, seas, and others seeps into groundwater, flows and comes into contact with the magma or hot, frozen bodies, boils and then forms water and steam (hydrothermal), due to specific gravity, temperature, and its pressure, this steam and hot water flows back to the surface through the fracture fields in the earth's crust. The research purposes are to identify the types of sediments and minerals found in the Hot Water Regions precisely located in Bulue Village, Marioriawa District, Soppeng Regency, South Sulawesi Province. This research uses the X-Ray Diffraction (XRD), resistivity meter, Electrode (potential electrode and current electrode) and Res2Dinv software for calculating the apparent resistivity based on the Wenner-Schlumberger configuration geometry factor and minerals dominance. Geoelectric results show silt and clay sediments are found to be dominant in Soppeng Regency hot springs. Silica is the central part that forms the rock, both rocks and rocks sediments. Furthermore, the result of X-Ray Diffraction (XRD) of mineral for three soil samples is dominated by Sodium-potassium to Aluminosilicate (41%), Sanidine (35%), Sanidine (equal to 47%) (Sanidine is mineral found mostly in volcanic rocks).