Faults in the Jingzhou Basin and Their Tectonic Settings
详细信息
- 责任者：Bai Daoyuan (Hunan Institute of Geology Survey ; Changsha 410016 ; China) ; Zhong Xiang
- 刊名：Geotectonica et Metallogenia
- 出版年：2013
- 卷期：37(2)
- 关键词：盆地演化 ; 构造环境 ; 华南地区
- 页码：p.173-183
- 图表：illus., 59 refs.
- 分类号：0300
- issnNo：ISSN1001-1552
- isbnNo：CN44-1595/P
摘要
The Jingzhou Basin is a small NE-trending Late Triassic to Middle Jurassic continental basin in the south segment of the Xuefeng orogen. In the Upper Paleozoic and Jurassic sequences,around and inside of the basin respectively,the authors observed lots of small-scale faults and joints of different attitude and kinematic property.Several stress events such as N-S compression,NNE compression,NEE compression,E-W compression,NW compression and NW extension were identified. According to the stratigraphy and crosscutting relationship of the faults and joints as well as the tectonic characteristics of the Jingzhou Basin and regional tectonic settings,the authors defined the tectonic evolution of the area ever since Mesozoic: regional NW compression in late Middle Triassic,N-S compression during Late Triassic to Early Jurassic,NW compression during early to middle of the Middle Jurassic,N-S compression in late Middle Jurassic originated from the sinistral strike-slipping of the NE- to NNE-trending Xupu-Jingzhou fault,regional NE compression and NW extension in Cretaceous,NEE compression during Late Cretaceous to Paleocene originated from the dextral strike-slipping of the Xupu-Jingzhou fault,EW compression during Eocene to Oligocene,and NNE compression in Neogene.
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