Stratigraphic Sequence and Sedimentary Facies Distribution of the Permian-Middle Triassic in the Northwestern Margin of the Yangtze Block
详细信息
- 责任者：Wei Guoqi (Langfang Branch ; Research Institute of Petroleum Exploration and Development ; PetroChina ; Langfang 065007 ; China) ; Yang Wei
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(3)
- 关键词：二叠纪 ; Permian ; 中三叠世 ; Middle Triassic ; 沉积相 ; sedimentary facies ; 扬子地台 ; Yangtze Platform
- 页码：p.741-748
- 图表：6 illus., 19 refs.
- 分类号：0803
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The Permian-Middle Triassic is mainly composed of carbonate rocks in the northwestern margin of the Yangtze block. In this paper, based on the application of theories and methods of carbonate sequence stratigraphy and the analysis of seismic data, outcrop, drill core and log information, the authors identify in the Permian-Middle Triassic strata four depositional sequence surfaces. The authors also divide the strata into 11 third-level sequences and 23 system tracts. By the contrast of stratigraphic sequence, the sequence stratigraphic framework is established, within which characteristics of sedimentary facies of different system tracts are analyzed. And it’s concluded that platform edge reef and beach facies and platform inside beach facies are the best reservoir facies belts, and the former is mainly located in highstand systems tract of sequence I (Qixia Formation), and transgressive systems tract of sequence V (Changxing Formation) and sequence VI (Feixianguan Formation).
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |