A case study of crystalline limestone intrusion and fault zone identication using 2d eri technique in Ramco cements, pandalgudi mines, Tamilnadu

Abstract

The aim of the study is find out the intrusion of crystalline limestone and faultzone indentification in Pandalgudi
mines, Ramco Cement Pvt Ltd, Tamilnadu. The Crystalline limestone formed in this region due to the geotectonic
intrusion of Calgic Granite in the Southern Granite Terrian (SGT) of Madurai Block. The high quality crystalline
limestones were mined in this Pandalgudi region. The tectonically formed faulted zone and open cast mine were
mapped through the 2D Electrical Resistivity Imaging (ERI) technique. 2D ERI technique were covered both vertical
and horizontal pseudosection to display the subsurface intrusive, weathered soil and Crystalline limestone in the
study area. The 2D ERI study has been carried out using the equipment resistivity meter, Multicore cable, rods and
Res2DINV software. These apparent resistivity pseudosectioon were display the range of resistivity in the three
profiles obtained average apparent resistivity (1-100 Ohm weather soil, 100-600 weathered limestone, 1400-14000
Ohm.m- Calcic Granulite rock) indicate the subsurface geological condition of the pandalgudi open cast mine.