A case study of granite exploration using 2D ERI technique in Palapathirama Puram, Tirunelveli District,Tamilnadu

摘要

The aim of study is to identify the granite intrusion in the Palapathiramapuram, Tirunelveli District, Tamilnadu. 2D Electrical Resistivity Imaging technique was used to infer the structural fault zone, subsurface condition, quality of granite rock investigated in the study area. The following technique was conducted with the help of resistivity meter, Multicore cable, wire spool and rods in three profiles with Wenner Configuration. The collected resistivity data was converted in to the apparent resistivity data converted in to 2D pseudosection with the use of Res2DINV software. The pseudoseciton is cover the part the study area horizontal and vertical change of the geological and faulted zone in the study area. The pseudosection pictures were used for the quality and quantity of the granite rocks, weathered zone (range of apparent resistivity 20-100 Ohm.m), faulted zones (range of resistivity 100-600 Ohm.m) and high quality granite rock (range of resistivity 600-6000 Ohm.m) for mining activity.