The Sedimentary Characteristics in the Late Pleistocene in Southern Ningxia and Its Tectonic Significance
详细信息
- 责任者：Xu Tao (College of Earth Science and Resources ; Chang’an University ; Xi’an 710054 ; China) ; Yang Jiaxi
- 刊名：Earth Science Frontiers
- 出版年：2013
- 卷期：20(4)
- 关键词：沉积物 ; sediments ; 伸展构造 ; extension tectonics ; 宁夏 ; Ningxia
- 页码：p.36-45
- 图表：illus., 1 table, 31 refs.
- 分类号：1400
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
The studies of the Quaternary sediments,the sedimentation in southern Ningxia and the Quaternary chronologic dating show many late Pleistocene sedimentary basins occurred in southern Ningxia in the late Pleistocene.The Late Pleistocene sediments in the basins are mainly featured by alluvial fan sediments,lacustrine argillaceous-silty sediments,basin-margin-slope lithofacies associations,first-terrace sediments of modern fluvial and loess sediment.The sedimentation of these basins suggests that the late Pleistocene sedimentary basin was controlled by regionally tectonic extension,which indicates that an obvious tectonic extension affected the southern Ningxia in the northeastward growth and uplift of the Tibetan Plateau,and provides a sedimentological evidence for the phasal uplift of the Tibetan Plateau.
© 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 |