Holly A Michael, University of Delaware, Geological Sciences, Newark, DE, United States, Mahfuzur Khan, University of Dhaka, Department of Geology, Dhaka, Bangladesh, Cliff Voss, USGS, Earth System Processes Division, Menlo Park, CA, United States, Charles Franklin Harvey, Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, Cambridge, MA, United States, Alexander van Geen, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States and Peter Knappett, Texas A&M University, Department of Geology and Geophysics, College Station, TX, United States