1. MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 China
2. Chinese Academy of Geological Sciences Beijing 100037 China
3. No. 5 Geological Brigade of the Tibet Bureau of Geology and Mineral Exploration and Development, Golmud Qinghai 816000 China
4. College of Earth Sciences Chengdu University of Technology Chengdu 610059 China
5. 606 brigade of Sichuan Metallurgical Geological Exploration Bureau Chengdu 611730 China
6. School of Earth Sciences and Resources China University of Geosciences Beijing 100083 China