Demarcating of Aquifer Zones with Geophysical and Geospatial Approach in South Western parts of Rangareddy District, Telangana State, India

Abstract

Aquifer zones are identified by the Geophysical Electrical Resistivity Survey method. This method is useful to delineate the subsurface formations, weathered zone, fracture pattern, etc. An attempt made to identify the subsurface lithology and aquifer zones by geo-electrical resistivity method in parts of Rangareddy District, Telangana State, India. The study area consists of Granites, Basalts of Deccan Traps and Laterites. Electrical soundings have been conducted along 5 profiles across and along the lineaments. In total 148 Vertical Electrical Soundings (VES) were conducted. Integrated studies of interpretation of geomorphologic and geophysical data were used to prepare a groundwater potential map. Geo-electrical parameter and sections have been prepared based on resistivity of the soundings. From the interpretation of results the shallow aquifers is due geomorphologic features and the potential of deeper aquifers is determined by lineaments such as faults and joints.