1. State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
2. Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education, School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
3. CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China
4. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
5. School of Geosciences, The University of Sydney, New South Wales 2006, Australia
6. Department of Geosciences, Fort Hays State University, Hays, Kansas 67601-4099, USA
7. School of Earth Science, Guilin University of Technology, Guilin 541004, China
8. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China