1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals, Ministry of Education, School of Geosciences and Infophysics Central South University Changsha 410083 China
2. Solid Earth Studies Laboratory, Department of Geology University of Regina Regina Saskatchewan S4S 0A2 Canada
3. Lunar and Planetary Science Research Center, Institute of Geochemistry Chinese Academy of Sciences Guiyang 550081 China
4. Xi'an Center of Geological Survey CGS Xi'an 710054 China