2:15 PM - 2:30 PM
*Ryoko SENDA1, Akira ISHIKAWA2, Tomoaki MORISHITA3, Katsuhiko SUZUKI1, Teruaki ISHII4 (1.JAMSTEC, 2.Department of Earth Science and Astronomy, The University of Tokyo, 3.School of Natural System, Colleage of Science and Technology, Kanazawa University, 4.Fukada Geological Institute)