Electrical Resistivity Method for Groundwater Exploration: A Case Study of Ganori Village Area, Aurangabad District, Maharashtra, India

Abstract

An attempt is made by geophysical surveys involving VES to depict the fracture zones. A total of twelve VES were established in the part of Ganori village of Aurangabad district, Maharashtra to identify the groundwater potential zones. The quantitative interpretation of the VES curves involves the IX1D technique. The resistivity values and subsurface thickness of first layer is represents the top soil and has a mean resistivity value of 10 meters with mean thickness 0.5 ohm-m. The second layer has a mean resistivity of 21ohm-m to 30 ohm-m with means thickness 5 to 10 meters. This layer represents a murumatic, weathered/fractured rock basement. The third layer has means resistivity of30 ohm-m to 35ohm-m and a mean thickness 30m to 50 meters. This layer represents the Amygdaloidal basalt/zeolitic rocks. Four layers were obtained in three vertical electrical soundings and only VES with a resistivity value 0f 50 ohm-m to 105ohm-m and mean thickness 35 m and below hard Trap devoid of joints and fractures rock in the study area.