Shangchun Teng¹, Wen Li², Xin Tao³, Qianli Ma⁴ and Xiaochen Shen², (1)University of Science and Technology of China, Earth and Planetary Sciences, Hefei, China, (2)Boston University, Boston, MA, United States, (3)University of Science and Technology of China, Hefei, China, (4)UCLA, Los Angeles, United States