*Asuka YAMAGUCHI¹, Wataru TANIKAWA², Jun KAMEDA³, Mayuko SHIMIZU⁴, Yohei HAMADA⁵, Gaku KIMURA⁴ (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.JAMSTEC/Kochi, 3.Graduate School of Science, Hokkaido University, 4.Department of Earth and Planetary Science, the University of Tokyo, 5.JAMSTEC/IFREE)

*Mari HAMAHASHI¹, Ryoji KAWASAKI¹, Rina FUKUCHI¹, Saneatsu SAITO², Yoshitaka HASHIMOTO³, Yohei HAMADA², Yujin KITAMURA⁴, Asuka YAMAGUCHI¹, Gaku KIMURA¹ (1.The University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology, 3.Kochi University, 4.Kagoshima University)

*Hiroaki KOGE¹, Shuichi KODAIRA², Toshiya FUJIWARA², Tomoyuki SASAKI³, Jun KAMEDA⁴, Yujin KITAMURA⁵, Mari HAMAHASHI¹, Yohei HAMADA⁶, Asuka YAMAGUCHI⁷, Juichiro ASHI⁷, Gaku KIMURA¹ (1.The University of Tokyo, 2.Institute for Research on Earth Evolution Japan Agency for Marine-Earth Science and Technology, 3.Ocean Engineering & Development Corporation, 4.Hokkaido University, 5.Kagoshima University, 6.Japan Agency for Marine-Earth Science and Technology, 7.Atomosphere and Ocean Research Institute, The University of Tokyo)

*Ryoji KAWASAKI¹, Mari HAMAHASHI¹, Rina FUKUCHI¹, Yoshitaka HASHIMOTO², Asuka YAMAGUCHI³, Jun KAMEDA⁴, Yohei HAMADA⁵, Yujin KITAMURA⁶, Makoto OTSUBO⁷, Gaku KIMURA¹ (1.Dept. Earth and Planet. Sci., Univ. Tokyo, 2.Kochi Univ., 3.Atmosph. Ocean Res. Inst., Univ. Tokyo, 4.Hokkaido Univ., 5.Japan Agency for Marine-Earth Science and Technology, 6.Kagoshima Univ., 7.AIST, Geological Survey of Japan, Inst. Geology and Geoinformation)

*Yohei HAMADA¹, Gaku KIMURA², Jun KAMEDA³, Asuka YAMAGUCHI⁴, Mari HAMAHASHI², Yujin KITAMURA⁵, Rina FUKUCHI², Ryoji KAWASAKI² (1.Kochi institute for Core Sample Research, JAMSTEC, 2.Department of Earth and Planetary Science, The University of Tokyo, 3.Earth and Planetary System Science Department of Natural History Science, 4.Atomosphere and Ocean Research Institute, The University of Tokyo, 5.Department of Earth and Environmental Sciences,Graduate School of Science and Engineering Kagoshima)

*Yujin KITAMURA¹, Gaku KIMURA², Jun KAMEDA³, Yui KOUKETSU⁴, Asuka YAMAGUCHI⁵, Hiroyuki KAGI⁴, Mari HAMAHASHI², Rina FUKUCHI², Yohei HAMADA⁶, Koichiro FUJIMOTO⁷, Yoshitaka HASHIMOTO⁸, Saneatsu SAITO⁶, Ryoji KAWASAKI², Hiroaki KOGE², Mayuko SHIMIZU², Takenao FUJII⁹ (1.Dept. Earth and Environmental Sci., Kagoshima University, 2.Dept. Earth and Planet. Sci., University of Tokyo, 3.Dept. Nat. Hist. Sci., Grad. Sch. Sci., Hokkaido University, 4.Geochem. Research Center, University of Tokyo, 5.Atmosph. Ocean Research Institute, University of Tokyo, 6.IFREE, JAMSTEC, 7.Tokyo Gakugei University, 8.Kochi University, 9.SHIMADZU Corp.)