11:10 AM - 11:25 AM
*Tatsuhiko Hoshino1,2, Tomohiro Toki3, Akira Ijiri1,2, Yuki Morono1,2, Hideaki Machiyama2, Juichiro Ashi4, Fumio Inagaki2,1 (1.Kochi Institute for Core Sample Research, Japan Agency for Marine Science and Technology, 2.Research and Development Center for Submarine Resources, Japan Agency for Marine Science and Technology, 3.Faculty of Science, University of the Ryukyus, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)