1. State Key Laboratory of Lithospheric and Environmental Coevolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, P. R. China
2. College of Earth and Planetary Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
3. State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an, Shanxi 710069, P. R. China
4. Tianjin Center, China Geological Survey, Tianjin 300170, P. R. China
5. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, Hubei 430074, P. R. China
6. Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, P. R. China
7. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, P. R. China