Fluvial Sequence Stratigraphy Mode and Isochronous Strata Correlation
详细信息
- 责任者：Hu Guangming (School of Geoscience ; Yangtze University ; Jingzhou 434023 ; China) ; Wang Jun
- 刊名：Acta Sedimentologica Sinica
- 出版年：2010
- 卷期：28(4)
- 关键词：层序地层学 ; sequence stratigraphy ; 河流环境 ; fluvial environment
- 页码：p.745-751
- 图表：7 illus., 13 refs.
- 分类号：1200
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
The authors find that there are some terrace staircases in the fluvial valley during the fluvial parasequence correlation of He 8th in Sulige gas field. Studies about modern valleyform show that the secondary intermittent tectonic uplifts during the first tectonic uplift led to the alternation of vertical erosion and lateral erosion-deposition, which forms the terrace staircases. And the first tectonic fall led to base level uplift and the change of new space added, which will control the sandbody distribution. According to the role of tectonic during forming fluvial sequence and the contact relationship between terrace staircases and their surrounding formations, the authors modify Wright,et al(1993) fluvial sequence stratigraphic model, and think that the tectonic movement controls the fluvial sequence. The hemicycle of tectonic uplift forms the regressive systems tract that is made of a series of relative isochronous terraces staircases.
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