*Mayuri INOUE¹, Terrence M. Quinn², Frederick W. Taylor², Atsushi SUZUKI³, Hodaka KAWAHATA⁴, Daisuke ARAOKA⁵, Yuhei MITSUKAWA¹, Minoru IKEHARA⁶, Hai Cheng⁷, R. Lawrence Edwards⁷ (1.Graduate School of Natural Science and Technology, Okayama University, 2.Jackson School of Geosciences, The University of Texas, 3.Geological Survey of Japan National Institute of Advanced Industrial Science and Technology (AIST), 4.Atmosphere and Ocean Reseaarch Institute, The University of Tokyo, 5.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 6.Center for Advanced Marine Core Research, Kochi University, 7.Department of Earth Sciences, University of Minnesota)