Affiliation: | Chengdong QI1,Guohua QIAO1,Hongchen DONG1,Dayei LUI1,Xing ZHANG1 , Deli YU2 1.Regional Survey of Geology & Mineral Resources,Jilin Province,Changchun 130022,China2.College of Material Science , Engineering,Jilin University,Changchun 130026,China |