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。
Using the theory and methods of sequence stratigraphy ano sedimentology, me sequence straugrapny ann nmoiacles palaeogeography in Early Permian-Late 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, clasfic shallow sea and delta. In this paper, coal-bearing strata in the Qinshui Basin are divaded 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.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
2007年第4期5-7,11,共4页
Coal Geology & Exploration
关键词
煤系
层序地层
沉积相
岩相古地理
沁水盆地
coal-bearing strata
sequence stratigraphy
sedimentary facies
lithofacies palaeo-geography
Qinshui Basin
