We are indebted to Tracy Frank for waiting patiently for data, to her and Mark Leckie for fruitful, frantic stratigraphic discussions, and to Mitch Malone for appreciating that these discussions take time! We are grateful to ODP for responding so rapidly to a belated request for supplementary samples. We sincerely thank David K. Watkins and Jean M. Self-Trail for their stimulating and encouraging reviews. Finally, J.A.L. would like to thank especially Tim Bralower and Paul Bown for allowing her to "muscle-in" on this project and associated meetings, despite not making it onto the ship! 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 the management of the Joint Oceanographic Institutions (JOI), Inc. Funding for this research (J.A.L.) was received from NSF EAR-0318584, provided to Tim Bralower.