Lisa Tauxe¹, Christeanne Nicole Santos², Brendan J Cych², Hyeon-seon Ahn³, Lesleis Nagy², Yuhji Yamamoto⁴, Wyn Williams⁵ and Xiang Zhao⁶, (1)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon, South Korea, (4)Kochi University, Center for Advanced Marine Core Research, Kochi, Japan, (5)Univ Edinburgh, Edinburgh, United Kingdom, (6)The Australian National University, Research School of Earth Sciences, Canberra, Australia