Geological Interpretation of Heliborne Geophysical Data from the Kaladgi Basin; Southern India

A.K. Chaturvedi; Peter Kovac; A.S. Chawla; Ronald Wiseman; A. Markandeyulu; Jackie Hope; M. Sridhar; Heather Carey; Brenda Sharp; A.K. Rai

doi:10.1071/ASEG2012ab393

ISSN: 2202-0586
E-ISSN:

oa Geological Interpretation of Heliborne Geophysical Data from the Kaladgi Basin; Southern India
Authors A.K. Chaturvedi^a, Peter Kovac^b, A.S. Chawla^c, Ronald Wiseman^d, A. Markandeyulu^e, Jackie Hope^f, M. Sridhar^g, Heather Carey^h, Brenda Sharpⁱ and A.K. Rai^j
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^a AMD/DAE, Hyderabad, , India, [email protected] ^b Fugro Airborne Surveys, Osborne Park, , Australia, [email protected] ^c AMD/DAE, Hyderabad, , India, [email protected] ^d Fugro Airborne Surveys, Ottawa, , Canada, [email protected] ^e AMD/DAE, Hyderabad, , India, [email protected] ^f Fugro Airborne Surveys, Osborne Park, , Australia, [email protected] ^g AMD/DAE, Hyderabad, , India, [email protected] ^h Fugro Airborne Surveys, Osborne Park, , Australia, [email protected] ⁱ Fugro Airborne Surveys, Ottawa, , Canada, [email protected] ^j AMD/DAE, Bangalore, , India, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2012, Issue ASEG2012 - 22nd Geophysical Conference, Dec 2012, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2012ab393
- Published online: 01 Dec 2012

Abstract

Summary

Geological interpretation from the Kaladgi Basin is based on integration of heliborne time domain electromagnetic (HELITEM), magnetic and gamma-ray spectrometry data with available geological mapping, ground exploration data, various published papers and spectral remote sensing data such as Landsat 7ETM+ and ASTER GDEM imagery.

Electromagnetic (EM) data, magnetic, radiometric, Landsat TM and Aster datasets were used for delineation of surface and subsurface extent of geological units and structural elements and for better understanding of the overall structural pattern of the Kaladgi Basin, including distribution of its local depocentres, the resistive basement surface and the magnetic basement topography. The interpretation of the available data details the localisation of intrusive bodies, basaltic lava flows, mafic dykes, basement faults and major intrabasinal fault systems.

Three dimensional grids (voxel models) of EM data were used for visualization in three dimensions.

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References

Anand, S. P. and Mita Rajaram, 2002, Aeromagnetic data to probe the Dharwar Craton, Current Science, v. 83, no. 2, 34-52
Chadwick, B., V. N. Vasudev, and G. V. Hegde, 2003, The Chitradurga schist belt and its adjacent plutonic rocks, NW of Tungabhadra, Karnataka: A duplex in the Late Archean convergent setting of the Dharwar craton, Journal of the Geological Society of India, v. 61, p. 645-663
Chakraborty, P. P., S. Dey, and S. P. Monhanty, 2010, Proterozoic platform sequences of Peninsular India: Implications towards basin evolution and supercontinent assembly, Journal of Asian Earth Science, v. 39, p. 589-607
Chaudhuri, A. K., J. Mukhopadhyay, S. Patranabis Deb, and S. K. Chanda, 1999, The Neoproterozoic cratonic successions of Peninsular India, Gondwana Research, v. 2, no. 2, p. 213-225
Chawla, A. S., 2010, Litho structural mapping using highresolution satellite data over parts of Kaladgi - Badami basin for preparation of integrated base geological map and integration of available ground exploration data, Atomic Minerals Directorate for Exploration and Research report, p. 1-21
Jayaprakash, A. V., Sundaram, V., Hans, S. K., and Mishra, R. N., 1987, Geology of the Kaladgi - Badami Basin, Karnataka, p. 201-225, Geological Survey of India, Bangalore
Meert, J. G., M. K. Pandit, V. R. Pradhan, J. Banks, R. Sirianni, M. Stroud, B. Newstead, and J. Gifford, 2010, Precambrian crustal evolution of Peninsular India: A 3.0 Billion year odyssey, Journal of Asian Earth Science, v. 39, p. 483-515
Ray, R., A. D. Shukla, H. C. Sheth, J. S. Ray, R. A. Duraiswami, L. Vanderkluysen, C. S. Rautela, and J. Mallick, 2008, Highly heterogeneous Precambrian basement under the central Deccan Traps, India: Direct evidence from xenoliths in dykes, Gondwana Research, v. 13, p. 375-385

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Article Type: Research Article

Keyword(s): geological interpretation; geophysical airborne survey; India; Kaladgi Basin

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Abstract

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