The authors would like to thank the Leg 207 Science Party, especially Helen Sturt, and the JOIDES Resolution staff and crew for the ultimate success of the cruise. This research used samples and/or data provided by the Ocean Drilling Program (ODP). ODP is sponsored by the U.S. National Science Foundation (NSF) and participating countries under management of Joint Oceanographic Institutions (JOI), Inc. This research was supported by a grant to A.S. from the priority program IODP/ODP of the German Research Foundation (DFG).