1. State Key Laboratory of Isotope Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China
2. CAS Center for Excellence in Deep Earth Science Guangzhou 510640 China
3. Department of Lithospheric Research University of Vienna Althanstrasse 14 Vienna A‐1090 Austria
4. Key Laboratory of Mineralogy and Metallogeny Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China