Acknowledgments

We would like to thank Captain George Gunther and the crew of the National Oceanic and Atmospheric Administration research vessel Seward Johnson for their help in the collection of the gravity cores. Jim Broda of the Woods Hole Oceanographic Institution and Matthew Arsenault, Sandy Baldwin, Brian Buczkowski, Michael A. Casso, Claudia Flores, Emily Himmelstoss, and Kate McMullen of the U.S. Geological Survey provided invaluable assistance during the 2008 cruise. We also appreciate the assistance from Liviu Giosan, Heather Benway, and the facility staff of the National Ocean Sciences Accelerator Mass Spectrometry of the Woods Hole Oceanographic Institution, as well as Kate McMullen (of the USGS), Ethan Beise (of Bryant University), Rusty LottiBond (of LDEO) and the radiology staff at Falmouth Hospital, for their aid in analyses of the cores collected during U.S. Geological Survey cruise 2008–008–FA and the archive cores from the Lamont-Doherty Earth Observatory.