First and foremost, the author A. Olivarez Lyle gratefully acknowledges the generous contributions of Robert M. Owen, who many years ago first conveyed to her the concept of the "Q10 rule," a concept that was never forgotten and that now forms the basis of the conclusions presented in this paper. This manuscript was much improved by the thoughtful reviews and extensive comments by Ellen Thomas and Phillip Meyers. We also acknowledge the careful laboratory work of Linda Kenoyer, Brandi Murphy, and Christopher Paul. 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. Funding for this research was provided by National Science Foundation OCE-024096, EPS-0132626, and JOI-U.S. Science Support Program.