*Yusuke Kuwahara¹, Kazutaka Yasukawa^2,1,3, Koichiro Fujinaga^3,2, Tatsuo Nozaki^4,2,5,3, Junichiro Ohta^2,3,6, Honami Sato^3,4, Jun-Ichi Kimura⁶, Kentaro Nakamura¹, Yasuhiro Kato^2,1,3,4 (1.Department of Systems Innovation, School of Engineering, The University of Tokyo, 2.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 3.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 4.Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology, 5.Department of Planetology, Graduate School of Science, Kobe University, 6.Volcanos and Earth’s Interior Research Center, Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology)

*Yusuke Kuwahara¹, Mizuki Ishida¹, Mio Kobayashi², Katsuya Ohnuma³, Yasuhiro Kato^4,1,5 (1.Department of Systems Innovation, School of Engineering, The University of Tokyo, 2.Department of Eco System Studies, School of Agricultural and Life sciences, The University of Tokyo, 3.Department of Physics, School of Science, The University of Tokyo, 4.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 5.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology)