Insights on the occurrence of Archean A2-type charnockites along the western margin of Eastern Ghats Belt: Constraints on the underthrusting of the Bastar craton beneath Eastern Ghats Belt

J Padmaja1, Tapabrato Sarkar1 and Somnath Dasgupta1,2, (1)Indian Institute of Science Education and Research Kolkata, Department of Earth Sciences, Kolkata, India, (2)Indian Statistical Institute, Geological Studies Unit, 203, B.T. Road, Kolkata, India