3:30 PM - 3:45 PM
*Atsunori NAKAMURA1, Yusuke YOKOYAMA1, Osamu FUJIWARA2, Kazuaki HORI3, Yosuke MIYAIRI1, Hiroyuki MATSUZAKI4 (1.Atmosphere and Ocean Research Institute, University of Tokyo, 2.Geological Survey of Japan, AIST, 3.Department of Geography, Nagoya University, 4.The University Museum, University of Tokyo)