STRUCTURAL CONFIGURATION OF RAMAGIRI SCHIST BELT, EASTEREN DHARWAR CRATON: THROUGH BOUGUER GRAVITY DATA ANALYSIS

Bouguer gravity data have been analyzed to evaluate the structural trends in parts of auriferous Ramagiri Schist belt the Eastern part of the Dharwar craton (EDC). The general geology of the study region consists of Chennai Complex (younger granites), schist belt surrounded by granitoids rocks on all sides within in the peninsular gneisses. While from qualitative analyses the geological and structural features such as six deep seated faults, three gravity highs (H1, H2 & H3) and two lows (L1 &L2) trends were delineated. Tectonic difference was elucidated on four layer earth and the depth extent and disposition of the supra crustal Ramagiri schist belt, a peninsular gneiss layer that forms the basement to the supra crustal and upper and deeper crustal layers. The sub-surface crustal configuration of the region is computed down to Moho along the eight traverses were obtained by inversion of Bouguer gravity anomalies. Subsequently, digitizing the crustal sections obtained from inversion is presented in 3.D contour images for Ramagiri schist, Peninsular gneiss, upper crustal and deeper crustal layers.