*Junsei Kugimoto¹, Mayuri Inoue¹, Atsushi Suzuki², Yoshikazu Oono³ (1.Department of Earth Sciences, Okayama University, 2.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 3.Department of Marine Biosciences, Kitasato University)

*Yusei Takahashi^1,3, Yoshikazu Ohno², Atsushi Suzuki³, Takuo Ohkochi^4,5, Hiroki Suga⁵, Fumito Shiraishi⁶, Katsuki Takahashi¹, Junsei Kugimoto¹, Yushi Sumida⁷, Tsukasa Imura⁷, Mayuri Inoue¹ (1.Okayama University, 2.Kitasato University, 3.National Institute of Advanced Industrial Science and Technology, 4.Institute of Advanced Industrial Science and Technology, University of Hyogo, 5.Japan Synchrotron Radiation Research Institute, 6.Hiroshima University, 7.University of Hyogo)