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Authors
Affiliations
1 Department of Geophysics, Banaras Hindu University, Varanasi - 221 005, IN
2 National Geophysical Research Institute, Hyderabad - 560 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 68, No 6 (2006), Pagination: 1093-1099
Abstract
Gravity survey was conducted in an area of about 13000 sq km covering northeastern part of Chhattisgarh Basin, Bilaspur-Raigarh gneissic belt and the central part of Mahanadi graben. Analysis of gravity anomalies has helped in the demarcation of the boundary of Chhattisgarh Basin and Mahanadi graben as well as in the determination of extent of basins and associated structures. The thickness of sediments in Chhattisgarh Basin and Mahanadi graben is estimated to be 3 5 km and 2 5 km respectively above the crystalline basement. Two prominent gravity high closures in the vicinity of Bilaspur and Akaltra are new findings and are attributed to presence of high density metamorphic schist belt below the Chhattisgarh Basin.
Keywords
Gravity Method, Graben, Schist, Gneissic Belt, Chhattisgarh Basin.
