1. School of Engineering and Technology, China University of Geosciences (Beijing), Haidian District, Beijing 100083, China
2. Zhengzhou Institute, China University of Geosciences (Beijing), Ximei Building, High-tech Industrial Development Zone, Zhengzhou, Henan 450001, China
3. No. 1 Exploration Institute of Geology and Mineral Resources of Shandong Province, Jinan 250109, China