Research Article
Ahilan J. and G. R. Senthil Ku
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 geoelectrical resistivity method in part of Mangalur block, Cuddalore District, Tamil Nadu, S.India. The study area consist of charnockite and charnockitic gneiss rocks. Electrical soundings have been conducted at every 2 Km intervals in grid pattern. Totally 36 VES were conducted, which have been qualitatively and quantitatively interpreted using software packages. Pseudosections have been generated by IPI 2 WIN ver.3.1 and isoresistivity maps were prepared. Geoelectrical parameter and sections have been prepared based on quantitative interpretation. Considering the hydrometeorological and hydrogeological conditions the VES interpretation was done. From the interpretation result the VES no. 21 (Alambadi) is a prospective zone for groundwater target.