Characteristics and Temporal and Spatial Distributions of Sequence Boundary of Qingbaikou-Jurassic in
详细信息
- 责任者：Tian Jingchun (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Zhang Xiang
- 刊名：Journal of Earth Sciences and Environment
- 出版年：2010
- 卷期：32(4)
- 关键词：层序界面 ; sequence boundary ; 青白口纪 ; Qingbaikou Period ; 侏罗纪 ; Jurassic ; 华北地区 ; North China
- 页码：p.331-337
- 图表：7 illus., 27 refs.
- 分类号：1200
- issnNo：ISSN1672-6561
- isbnNo：CN61-1423/P
摘要
In this paper, 42 field geologic sections of different eras were observed, based on the theory of sequence stratigraphy,south Huabei Basin was taken as a whole, characteristics and temporal and spatial distributions of sequence boundary of Qingbaikou-Jurassic were discussed. Finally, distribution characteristics of different boundaries were discussed in time and space. The results showed that the boundary in time from begin to end appeared marine facies, sea-land transition facies, continental facies, respectively, and the sequence boundary experienced marine deposition unconformity surface, action surface of ancient karst, paleosoil to the continental unconformity surface, washing erosion surface, etc.. In space, the same sequence boundary could occur in different facies and have different forms,but there were some differences of the characteristics among the facies.