Affiliation: | College of Earth Sciences , Chengdu University of Technology , Chengdu 610059, China;College of Earth Sciences and Mineral Resources , China University of Geosciences , Beijing 100083, China;College of Earth Sciences , Chengdu University of Technology , Chengdu 610059, China;China Railway Eryuan Engineering Group Co.Ltd,Chengdu,Sichuan 610031;College of Earth Sciences , Chengdu University of Technology , Chengdu 610059, China |