Kai Hu^1,2, Xiaomin Fang³, Ken Ferrier¹, Darryl E Granger⁴, Zhijun Zhao⁵ and Gregory Ruetenik¹, (1)University of Wisconsin Madison, Madison, WI, United States, (2)Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, (3)CAS Center for Excellence in Tibetan Plateau Earth Sciences and Key Laboratory of Continental Collision and Plateau Uplift, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijng, China, (4)Purdue University, Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, (5)Nanjing Normal University, School of Geography Science, Nanjing, China