4:30 PM - 4:45 PM
*Ryo Fujita1, Akira Ishikawa1,2, Hirochika Sumino3, Michael O Garcia4 (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2.Submarine Resources Research Center, JAMSTEC, 3.Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo, 4.Department of Earth Sciences, The University of Hawaii)