Bar Oryan, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Michael S Steckler, Lamont-Doherty Earth Obs, Palisades, NY, United States, Dhiman Ranjan Mondal, CUNY Queens College, Flushing, NY, United States, Syed Humayun Akhter, University of Dhaka, Department of Geology, Dhaka, Bangladesh and Sanju Singha, University of Dhaka, Geology Department, Dhaka, Bangladesh