沁水盆地晚古生代煤系层序地层及岩相古地理研究

详细信息

Sequence stratigraphy ＆ lithofacies palaeogeography in Qinshui Basin

摘要: 运用层序地层学及沉积学的方法和原理,根据野外露头、钻井及区域地质资料分析,认为山西沁水盆地煤系主要存在碳酸盐岩台地、碎屑岩浅海和三角洲等沉积相类型。进行层序界面的识别、沉积相的分析和准层序的研究对比,将沁水盆地煤系划分为两个层序,每个层序又分为海侵体系域和高位体系域(缺低位体系域)。在此基础上,以体系域为单位编制了岩相古地理图,并分析了各个体系域的岩相古地理特征。
- 煤系 /
- 层序地层 /
- 沉积相 /
- 岩相古地理 /
- 沁水盆地
Abstract: Using the theory and methods of sequence stratigraphy and sedimentology,the sequence stratigraphy and lithofacies palaeogeography in Early PermianLate Carboniferous of the Qinshui Basin in Shanxi Province are studied on the basis of outcrops,well logging data and other geological information.According to sedimentary characters,several primary sedimentary facies are identified,such as carbonate platform,clastic shallow sea and delta.In this paper,coalbearing strata in the Qinshui Basin are divided into two sequences which consist of transgressive system tracts and highstand system tracts.Lowstand syetem tracts are not developed.The lithofacies palaeo-geography maps of each system tract are also plotted.
- coal-bearing strata /
- sequence stratigraphy /
- sedimentary facies /
- lithofacies palaeo-geography /
- Qinshui Basin