GEO ELECTRICAL RESISTIVITY METHOD FOREXPLORATION OF SUBSURFACE DEPOSITS OF BRONZITEBEARING GABBRO (GALAXY GRANITE) PRAKASAMDISTRICT. ,A. P ., INDIA.

摘要

The deposits which occur at subsurface level pose challenging problems during their exploitation. The problems confronted by such deposits can be effectively resolved by adopting suitable GeoElectrical Resistivity Method.The important geoelectrical requirement for understanding the nature of subsurface formations includes, artifical energisation of the subsurface and in response, record the signatures from the charged subsurface. The existing conventional four electrode systems can measure the subsurface responses in two orientations - viz Geo Electrical Profiling and Vertical Electrical Soundings. The authors have adopted a suitable method of Geo Electrical exploration for delineating the bed rock from weathered rock and soil. The Resistivity data is processed on the computer for obtaining Resistivity contour, 3D visuals and vertical profiles of the bed rock configuration. Availability of such information before starting quarry operations go long way in saving unwanted expenditure, time and labour. Besides, this the quarry operation can be planned in a scientific manner so that the prospect of the deposit is not affected by indiscriminate quarrying and waste disposal.The studies can be extended to other areas for proper exploitation of any subsurface granite deposits. This method is very significant for studying the deposits with precession, accuracy, reliability and resolution.