4:00 PM - 4:15 PM
*Jian Li1,2, Jianxin Liu1,2, Yasuo Ogawa3, Rongwen Guo1,2, Yongfei Wang1, Gangqiang Yang1 (1.Central South University, School of Geosciences and Info-Physics, Changsha, China, 2.Central South University, Hunan Key Laboratory of Nonferrous Resources and Geological Hazards Exploration, Changsha, China, 3.Tokyo Institute of Technology, Volcanic Fluid Research Center, Tokyo, Japan)