09:15 〜 09:30
*Yongsheng HUANG1,2、Satoshi Okumura3、Kazuhisa Matsumoto3、Naoko Takahashi3、Hong Tang4、Tatsumi Tsujimori3,5、Michihiko Nakamura3、Yuan Li1,2 (1.Guangzhou Institute of Geochemistry, Chinese Academy of Sciences、2.CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China、3.Department of Earth Science, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan、4.South China Sea Environmental Monitoring Center, SOA, Guangzhou 510300, China.、5.Center for North Asian Studies, Tohoku University, Sendai, 980-8576, Japan)