*Gaku KIMURA¹, Yoshitaka HASHIMOTO², Yujin KITAMURA³, Asuka YAMAGUCHI⁴, Mari HAMAHASHI¹, Hiroaki KOGE¹, Sumito MORITA⁵ (1.Dept. Earth and Planetary Science, The University of Tokyo, 2.Kochi University, 3.Kagoshima University, 4.Atmosphere and Ocean Research Institute, The University of Tokyo, 5.AIST)

*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)

*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.)

*Gaku KIMURA¹, Yoshitaka HASHIMOTO², Yujin KITAMURA³, Asuka YAMAGUCHI⁴, Hiroaki KOGE¹ (1.Dept. Earth and Planetary Science, The University of Tokyo, 2.Kochi University, 3.Kagoshima University, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)