Claire Bouligand, University Grenoble Alpes, France, Maurice Tivey, Woods Hole Oceanographic Inst, Woods Hole, MA, United States, Carol Finn, USGS, Geology, Geophysics and Geochemistry Science Center, Denver, CO, United States, Lisa A Morgan, US Geological Survey, Denver, CO, United States, Wayne C Shanks III, U.S. Geological Survey, Denver, CO, United States and Robert A Sohn, Woods Hole Oceanography Inst, Woods Hole, MA, United States