Open Access Open Access  Restricted Access Subscription or Fee Access
Total views : 242

Gold - Sulphide Mineralization in Ultramafic-Mafic-Granite Complex of Jashpur, Bastar Craton, Central India: Evidences from Geophysical Studies


  • CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad – 500 007, India

DOI: 10.1007/s12594-017-0692-x


Time Domain Induced Polarization (TDIP) investigation in conjunction with high resolution electrical resistivity tomography surveys carried out at seven sites along a 5.2 km line in Jashpur and Raigarh districts of Chhattisgarh State yielded promising results leading to the demarcation of mineralized zones. These sites are confined to ultramafic-mafic-felsic intrusive complexes representing gabbro-pyroxenite-granite sequences characterized by gold - sulphide mineralization. Two dimensional (2D) geophysical datasets yielded interesting results and a good correlation is found between 2D inverted resistivity tomography and time domain induced polarization (IP) models. Both high resistivity-high chargeability as well as low resistivity-high chargeability conditions have been inferred from these datasets. This observation is consistent with conductive metallic mineralization. Interpretation of the Pharsabahar-Pandripani site, reveals a chargeability magnitude of 9-14 mV/V, which represents a strong metallic conductor associated with gold-sulphide ore body. The results at Samarkachar site are equally significant, showing a good correlation with the presence of a low resistivity and high chargeability zone. Hence, the present study suggests a new scope for application of resistivity and IP tomography surveys for mineral prospecting in favourable geological settings.

Full Text:

 |  (PDF views: 35)


  • ABEM. (2012) ABEM Instruction Manual – Terrameter LS, Stockholm pp. 110.
  • Chakraborty, K. and Roy, A. (2013) Petrogenesis of ultramafic-mafic to felsic plutonic rock associations from southern portion of Chhotanagpur gneissic complex in Central India: A multi-stage crust-mantle interaction process. Jour. Geol. Soc. India, v.81, pp.309-329.
  • Dahlin, T. and Zhou, B. (2006) Gradient array measurements for multi-channel 2D resistivity imaging. Near Surface Geophysics, 4, pp. 113-123.
  • Hallof, P.G. and Yamashita, M. (1990) The use of the IP method to locate gold-bearing sulphide mineralization, in Induced Polarization Applications and Case Histories, In: Fink, J.B, Sternberg, B.K., McAlister, E.O., Weiduwilt, W.G., Ward, S.H., (Eds.) Investigations in Geophysics, Vol 4, SEG, Houston, pp. 227-279.
  • Loke, M.H. (2012) Tutorial: 2-D and 3-D electrical imaging surveys, http://
  • Moon, C.J., Whateley, M.E.G. and Evans, A. (2006) M. Introduction to Mineral Exploration. 2nd ed., Backwell Publishing, Oxford, 499 pp.
  • Ramachandra, H.M., Roy, A., Mishra, V.P. and Dutta, N.K. (2001) A critical review of tectonothermal evolution of the Bastar Craton. Proceeding M.S. Krishnan Centenary Commemorative National Seminar. Geol. Surv. India, Spec. Publ., Calcutta, India No.55, 161-180.
  • Roy, A. and Chakraborty, K. (2008) Precambrian mafic-ultramafic magmatism in the Central Indian Suture Zone. Journ. Geol. Soc. India, v.72(7), pp.123140.
  • Sarkar, S.C. and Gupta, A. (2012) Crustal evolution and metallogeny in India. Cambridge University Press, New York, pp.912.
  • Sharma, R.S. (2010) Cratons of the Indian Shield. In: R.S.Sharma (Ed.) Cratons and Fold Belts of India. Lecture notes in Earth Sciences. XXXI, Springer Verlag, pp.304.
  • Sumner, J.S. (1976) Principles of Induced Polarization for Geophysical Exploration, Elsevier publication, pp.1-277.
  • Upadhye, S.N. (2007) Gold mineralization in Pandripani area, Jashpur district, Chhattisgarh: In: A.M. Pophare and D.B. Malpe. Recent Development in Geology and Mineral Resources of Central India; (Eds.) Gondwana Geol. Magz. Spec. Vol. 10, pp.227-234.
  • Yellappa, T., Chetty, T.R.K. and Santosh, M. (2012) Tectonic framework of southern Bastar Craton, Central India: a study based on different spatial information data sets. Geological Jour. V.47, pp. 161-185.