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In groundwater exploration in hard rock media, it is very important to delineate structures such as geological contacts, faults and joints. Exploration of groundwater in hard rock terrain is a very challenging and difficult task when the promising groundwater zones are associated with fractured and fissured media. Since these structures control the groundwater flow and are more favorable sites for the groundwater accumulation. In this environment, the groundwater potentiality depends mainly on the thickness of the weathered/fractured layer overlying the basement. The main aim of a geophysical investigation in a hard rock region is to solve different hydrogeological problems like depth of water table, basement rock, thickness of weathered zone/formation, structural and stratigraphic conditions relevant to groundwater conditions, and permeability of aquifers. The combination of various geophysical techniques with environmental conditions is essential to constrain the interpretation and reduce uncertainties.

Groundwater Geophysics in Hard Rock offers the methodology to groundwater exploration in hard rocks, several geophysical practices and combinations to be used, analysis of data with case studies and drilling results and the preparation of different utility maps.