Structural Appraisal of the Gravity Map of Dharwar Craton, India Through Gradient Techniques

K. Satish Kumar; K.Bhagya; G. Ramadass

Volume : IV, Issue : VI, June - 2015

Structural Appraisal of the Gravity Map of Dharwar Craton, India Through Gradient Techniques

K. Satish Kumar, K. Bhagya, G. Ramadass

Abstract :

An attempt has been made to understand the complex nature of the new Bouguer gravity anomalies over Dharwar Craton in relation between geology, structure and tectonics in the study region bounded between 73� 30‘ E –78� 30‘ E Longitudes and 12� N–17� N Latitudes. Disposition of Schist belts, Younger Granites and Various Faults ( f1–f12) and other gravity lineaments, (9–Gravity Highs (H1–H9), 7 Gravity lows (L1–L7)) were delineated. These signatures are also observed in vertical and tilt derivative maps. The structures are identified for the Dharwar formations are alternating bands of Synclines and Anticlines with dense greenstone rocks, and separated by anticlinal ridges of low density younger granites. These findings are significant in view of the paucity structural data in the Dharwar Craton and form a Geostructural data base.