1. School of Earth Sciences, Key Laboratory of Western China's Mineral Resources of Gansu Province Lanzhou University Lanzhou China
2. CAS Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of Sciences (CAS) Beijing China
3. CAS Key Laboratory of Continental Collision and Plateau Uplift, Institute of Tibetan Plateau Research Chinese Academy of Sciences (CAS) Beijing China
4. Department of the Geology and Geophysics Louisiana State University Baton Rouge Louisiana USA