Junmeng Zhao^1,2, Hongbing Liu², Xu Qiang^1,2, Heng Zhang^1,2, Changhui Ju², Irina Strelchenko², Gong Deng², Xun Wang² and Shuze Chen², (1)Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China, (2)ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China