作者单位: | 1.Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China;2.Hebei GEO Univ, Coll Earth Sci, Shijiazhuang 050031, Hebei, Peoples R China;3.China Geol Survey, Shenyang Ctr Geol Survey, Shenyang 110034, Peoples R China;4.China Geol Survey, Tianjin Ctr Geol Survey, Tianjin 300170, Peoples R China; |