*Tsuyoshi Iizuka1, Yuki Hibiya2, Takehito Hayakawa3 (1.University of Tokyo, 2.JAMSTEC, 3.National Institutes for Quantum and Radiological Science and Technology)
convener:Wataru Fujiya(Ibaraki University, College of Science), Megumi Matsumoto(Graduate School of Science, Tohoku University), Shin Ozawa(Department of Earth Science, Graduate School of Science, Tohoku University), Yuki Hibiya(Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology)