*Koharu Arai¹, Hirochika Sumino¹, Atsushi Takenouchi², Shogo Tachibana¹ (1.The University of Tokyo, 2.National Institute of Polar Research)

*Hirochika Sumino¹, Naoki Nomata¹, Maiko Sakuraba¹ (1.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo)

*Hirochika Sumino¹, Tomotaka Tanaka¹, Hideharu Kuwahara², Satoshi Kishi¹, Kenji Mibe⁴, Ryuichi Nomura³, Hiroyuki Kagi⁵ (1.Department of Basic Science, Graduate School of Arts and Sciences, University of Tokyo, 2.Geodynamics Research Center, Ehime University, 3.Graduate School of Human and Environmental Studies, Kyoto University, 4.Earthquake Research Institute, University of Tokyo, 5.Geochemical Research Center, Graduate School of Science, University of Tokyo)

*Tomoaki Morishita^1,2,3, Naoto Hirano⁴, Hirochika Sumino⁵, Hiroshi Sato⁶, Tomoyuki Shibata⁷, Masako Yoshikawa⁷, Shoji Arai¹, Akihiro Tamura¹ (1.Kanazawa University, 2.JAMSTEC, 3.Columbia University, 4.Tohoku University, 5.University of Tokyo, 6.Senshu University, 7.Hiroshima University)

*Hirochika Sumino¹, Kotaro Toyama¹, Takeshi Ohba², Muga Yaguchi³, Akihiko Terada⁴ (1.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 2.Department of Chemistry, School of Science, Tokai University, 3.Meteorological Research Institute, Japan Meteorological Agency, 4.Volcanic Fluid Research Center, Tokyo Institute of Technology)

*Masanori Takahashi¹, Akihiko Terada¹, Hirochika Sumino², Kotaro Toyama², Takeshi Ohba³, Leona Suzuki¹ (1.Volcanic Fluid Research Center, Tokyo Institute of Technology, 2.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3.Department of chemistry, School of Science, Tokai University)

*Hirochika Sumino¹, Kotaro Toyama¹, Takeshi Ohba², Muga Yaguchi³ (1.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 2.Department of Chemistry, Tokai University, 3.Meteorological Research Institute)

*JIE REN¹, Hirochika Sumino¹, Yui Kouketsu², Simon Richard Wallis³ (1.Graduate School of Arts and Sciences, The University of Tokyo , 2.Graduate School of Enviromental Studies, Nagoya University, 3.Graduate School of Science, The University of Tokyo)

*Hirochika Sumino¹, Sota Niki², Ray Burgess³, Masahiro Kobayashi⁴, Hiroyuki Kagi² (1.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 2.Geochemical Research Center, Graduate School of Science, University of Tokyo, 3.School of Earth and Environmental Sciences, University of Manchester, 4.Tokyo Metropolitan Industrial Technology Research Institute)

Gabe S Epstein¹, *Gray E Bebout^1,2, Bruce W Christenson³, Hirochika Sumino⁴, Ikuko Wada⁵, Cynthia A Werner⁶, David R Hilton⁷ (1.Dept. Earth and Environmental Sciences, Lehigh University, USA, 2.Okayama University, Institute for Planetary Materials, 3.National Isotope Center, GNS Science, New Zealand, 4.Dept. of Basic Science, University of Tokyo, 5.Dept. of Earth Sciences, University of Minnesota, USA, 6.USGS-Contractor, USA, 7.Scripps Institution of Oceanography, USA)

*Antonio Alvarez-Valero¹, Hirochika Sumino², Elena Núñez-Guerrero¹, Meritxell Aulinas³, Adelina Geyer⁴, Helena Albert⁵ (1.University of Salamanca - Department of Geology, Spain, 2.University of Tokyo, Japan, 3.University of Barcelona, Spain, 4.ICTJA - CSIC, Spain, 5.Spanish Geographical Institute, IGN, Spain)

*Kotaro Toyama¹, Hirochika Sumino¹, Muga Yaguchi², Takeshi Ohba³, Takashi Toyofuku⁴, Shigeki Wada⁵ (1.The University of Tokyo, 2.Meteorological Research Institute, 3.Tokai Univ., 4.JAMSTEC, 5.Shimoda Marine Research Center, University of Tsukuba)

*Nobuko Kametani^1,2, Hirochika Sumino³, Kenta Ueki⁴, Morihisa Hamada⁴, Yasuo Ishizaki⁵ (1.Graduate School of Science and Engineering, University of Toyama, 2.Mount Fuji Research Institute Yamanashi Prefectural Government, 3.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 4.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 5.Faculty of Sustainable Design, University of Toyama)

*Yuki Hattori¹, Yoshihide Akiyama¹, Hirochika Sumino¹ (1.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo)