This research used samples and data provided by the Ocean Drilling Program (ODP). The ODP is sponsored by the U.S. National Science Foundation (NSF) and participating countries under management of Joint Oceanographic Institutions (JOI), Inc. Funding for this research was provided by JOI/U.S. Science Support Program. We also thank Beth Bowling, Staci Latimer, and Derrick Newkirk for their assistance in sample processing.