11:45 AM - 12:00 PM
*Masao Nakanishi1, Shoka Shimizu2, Daisuke Suetsugu3, Takashi Sano4 (1.Department of Earth Sciences, Graduate School of Science, Chiba University, 2.Department of Earth Sciences, Graduate School of Science and Technology, Chiba University, 3. Department of Deep Earth Structure and Dynamics Research, Japan Agency for Marine-Earth Science and Technology, 4.Department of Geology and Paleontology, National Museum of Nature and Science)