GROUNDWATER EXPLORATION BY USING ELECTRICAL RESISTIVITY METER IN GRANITIC TERRAIN OF HYDERABAD REGION, TELANGANA STATE, INDIA
Author(s):
SHAIK SALEEMMIYA, I. PANDURANGA REDDY, SREENU KUNSOTH
Keywords:
Hard Rocks, porosity, Permeability, Runoff, Infiltration, weathered/fractured zones, Electrical resistivity method, groundwater.
Abstract
Hard rock occupies large parts of the earth’s crust. These rocks are devoid of primary porosity and permeability. Most crystalline rock areas of Hyderabad are located in areas of high relief as a result, runoff is high and infiltration rates are very low. Most often, the occurrence of ground water in this terrain is localized and confined to weathered/fractured zones. Hence detailed pre-drilling geophysical investigations become inevitable. This present work gives a brief geological background of the hard work encountered in the study areas and explains the usefulness of the electric resistivity method. Electrical resistivity method is useful to investigate the nature of subsurface formations by studying the variations in their resistance to flow of electrical current and hence determine the occurrence of groundwater. The objectives of this method in the field of groundwater exploration are to locate groundwater bearing formations, estimation of depth to the water table, thickness and lateral extent of aquifers, depth to bed rock, structures and stratigraphic conditions such as fractures.
Article Details
Unique Paper ID: 155088

Publication Volume & Issue: Volume 8, Issue 12

Page(s): 1316 - 1322
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