*Haibo Qin^1,2、Shitong Yang¹、Qing Chang³、Chihiro Miyamoto¹、Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Graduate School of Science、2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences、3.Japan Agency for Marine-Earth Science and Technology)

*Shitong Yang¹、Soichiro Uesugi¹、Haibo Qin¹、Akira Usui²、Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo、2.Geology Department, Kochi University)