Clay Minerals of the Middle-Late Mesozoic Mudrocks from North and Northeast China:Implications to Paleoclimate and Paleohighland
详细信息
- 责任者：Li Xianghui (Department of Earth Sciences ; Nanjing University ; Nanjing ; 210093 ; China) ; Xu Baoliang
- 刊名：Acta Geologica Sinica
- 出版年：2008
- 卷期：82(5)
- 关键词：中生代 ; Mesozoic ; 粘土矿物 ; clay minerals ; 华北地区 ; North China ; 东北地区 ; Northeast China
- 页码：p.683-691
- 图表：2 illus., 1 table, 54 refs.
- 分类号：0700
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
///Four clay minerals of the middle and late Meesozoic mudrock samples from North and Northeast China were analyzed by TEM and Illite Crystallinity (IC) in the study. The paper also explained the reliability of experimental data when employed to analyze paleoclimate. Spatial and temporal change of contents of clay minerals, features and evolution of paleoclimate, as well as the relation between the change and paleohighland, were also discussed in the research. The result shows that illite is the most common clay mineral in the study area during the Middle and Late Mesozoic. The contents in each study area are no less than 20% (averaging to 46.6%). The content of smectite ranks the second with an average of 57.8% in Henan and Shandong provinces.