ACKNOWLEDGMENTS

The authors would like to thank Thomas F. Naehr for a helpful review and Jutta Heinze and Bettina Domeyer (IFM-GEOMAR, Kiel, Germany) for help with carbon and XRD analyses. 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 grant BO 1049/8 of the Deutsche Forschungsgemeinschaft.

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