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 the U.S. Science Support Program (USSSP).
We thank Mitchell and Annette Lyle for providing us with opal and calcite concentrations and Brian Bollin for helping with Matlab matrix inversion. Also, we thank the ODP and Oregon State University core repositories for supplying the samples needed for this study.