4:20 PM - 4:35 PM
*Ayumi Maeda1, Kazuhiko Fujita2, Keiji Horikawa3, Atsushi Suzuki4, Yoshikazu Ohno5, Hodaka Kawahata6 (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Department of Physics and Earth Sciences, University of the Ryukyus, 3. Graduate School of Science and Engineering for Research, University of Toyama, 4.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 5.Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, 6.Atmosphere and Ocean Research Institute, The University of Tokyo)