1. Key Laboratory of Mineral Resources Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China
2. Innovation Academy for Earth Science Chinese Academy of Sciences Beijing 100029 China
3. National Research Centre of Geoanalysis Chinese Academy of Geological Sciences Beijing 100037 China
4. AIRIE Programme Colorado State University Fort Collins CO 80523‐1482 USA
5. Institute of Geosciences University of Oslo Oslo Norway
6. State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China
7. Beijing Institute of Geological Engineering Design Beijing China