Restoration of Paleoclimate and Its Geological Significance: Taking Upper Triassic Xujiahe Formation in Sichuan Basin
详细信息
- 责任者：Xu Zhaohui (Research Institute of Petroleum Exploration and Development ; PetroChina ; Beijing 100083 ; China) ; Hu Suyun
- 刊名：Acta Sedimentologica Sinica
- 出版年：2011
- 卷期：29(2)
- 关键词：沉积作用 ; sedimentation ; 古气候 ; paleoclimate ; 晚三叠世 ; Upper Triassic ; 四川盆地 ; Sichuan Basin
- 页码：p.235-244
- 图表：9 illus., 3 tables, 20 refs.
- 分类号：0803
- 出版序号：20120214
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Upper Triassic Xujiahe Formation in Sichuan Basin is the principal producing formation. In order to discuss the contribution of paleoclimate on this kind of sedimentation structure, three commonly-used methods of restoring paleoclimate, namely sporopollen, elements and GR-ray logging were used to restore the paleoclimate of the time when each member of Xujiahe Formation was deposited. Controlled by the regular changes of paleoclimate, even numbered members were dominated by mudstone, and odd numbered members were dominated by sandstones. This kind of sandwich-like sedimentation structure formed by alternating layers of mudstone and sandstone provided favorite conditions for the formation of hydrocarbon reservoirs.
© 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 |