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International Journal of Geophysics
Volume 2014 (2014), Article ID 969462, 13 pages
http://dx.doi.org/10.1155/2014/969462
Research Article

Correlation of VLF-EM Data with Radiometric Measurements: Implications for Uranium Exploration around Beldih, South Purulia Shear Zone, India

Department of Geology & Geophysics, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India

Received 22 October 2013; Revised 26 January 2014; Accepted 25 February 2014; Published 27 March 2014

Academic Editor: Michael S. Zhdanov

Copyright © 2014 Saurabh Mittal et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study is an attempt to correlate VLF-EM data with the radiometric measurements to decipher the subsurface structure and to locate uranium mineralization in the shear zone. The study area is around Beldih mine which is an open cast apatite mine located on the South Purulia Shear Zone. VLF method has been applied to map the structure and the presence of radioactive minerals has been delineated by the detection of high α and γ counts with respect to the background radiations. High radiation counts and high surface γ activity are found just above the higher apparent current-density zones in all the profiles studied, at various locations, indicating uranium and/or thorium mineralization as well as good correlation between these techniques.