2:30 PM - 2:45 PM
*Koichi Hirono1, Yusuke Okazaki2, Takuma Miyakawa3, Kana Nagashima3 (1.Department of Earth and Planetary Sciences, School of Science, Kyushu University, 2.Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University, 3.Japan Agency for Marine-Earth Science and Technology)