Sun. May 21, 2017 12:00 AM - 12:00 AM
*Takeaki Ogawa1, Tsuyoshi Ishikawa2, Shunya Kaneki1, Tetsuro Hirono1 (1.Department of Earth and Space Science, Graduate School of Science, Osaka University, 2.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)