Molly Anderson, University of Florida, Department of Geological Sciences, Ft Walton Beach, FL, United States, Michael R Perfit, University of Florida, Department of Geological Sciences, Gainesville, FL, United States, V. Dorsey Wanless, WHOI, Woods Hole, MA, United States, Patricia M Gregg, University of Illinois at Urbana-Champaign, Urbana, IL, United States, Daniel J Fornari, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, William Ian Ridley, USGS Denver Federal Center, Denver, CO, United States and Michael A Cosca, USGS, Denver, CO, United States