Affiliation: | FENG Jianzhong~1, FU Shuixing~2, WU Dewen~3 and YANG Zian~3 1. Department of Geology, Peking University, Beijing 100871, China; 2. Beijing Institute of Geology for Mineral Resources, Beijing 100012, China; 3. Center of Remote Sensing for Geology, CNNC, Beijing 101601, China |