1. Key Laboratory of Mineral Resources; Institute of Geology and Geophysics, Chinese Academy of Sciences; Beijing 100029 China
2. Institutions of Earth Science; Chinese Academy of Sciences; Beijing 100029 China
3. College of Earth Science; University of Chinese Academy of Sciences; Beijing 100049 China
4. College of Earth Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
5. Laboratory of Isotope Geochemistry; Wuhan Centre of China Geological Survey; Wuhan 430205 China
6. State Key Laboratory of Geological Processes and Mineral Resources; China University of Geosciences; Beijing 100083 China