Robert P Mason, University of Connecticut, Marine Sciences, Groton, United States, Yipeng He, Woods Hole Oceanographic Institute, Marine Chemistry & Geochemistry, Woods Hole, United States, Hannah Inman, University of Connecticut, Marine Science, Groton, United States, Douglas E Hammond, University of Southern California, Department of Earth Science, Los Angeles, United States and Mark P Stephens, PhD, Florida International University, Applied Research Center, Miami, FL, United States