*Takamasa Niibe1, Atsushi Okamoto1, Takashi Amagai2, Noriyoshi Tsuchiya1 (1.Graduate School of Environmental Studies, Tohoku University, 2.Japan Oil, Gas and Metals National Corporation)
convener:Noriyoshi Tsuchiya(Graduate School of Environmental Studies, Tohoku University), Hiroshi Asanuma(AIST), Yasuo Ogawa(Volcanic Fluid Research Center, School of Science, Tokyo Institute of Technology), Shigemi Naganawa(Akita University)