3:45 PM - 4:00 PM
*Takaaki Noguchi1, Yuji Miyake2, Ryuji Okazaki2, Takahito Osawa3, Hiroyuki Serizawa3, Hikaru Yabuta4, Tomoki Nakamura5 (1.Faculty of Arts and Science, Kyushu University, 2.Department of Earth and Planetary Science, Kyushu University, 3.Japan Atomic Energy Agency, 4.Department of Earth and Planetary System Science, Hiroshima University, 5.Department of Earth Sciences, Tohoku University)