皖北晚石炭世复合沉积体系的特征及类型

Characteristics and Types of the Complex Depositional Systems of Late Carboniferous in Northern Anbui

在系统沉积学研究的基础上，着重阐述了本区有特殊意义的复合沉积体系的沉积特征和沉积相。根据海退旋回的相组合形式提出并阐述了复合潮坪型、台地─障壁岛型、台地─泻湖型和台地─三角洲型４种复合沉积体系的主要特征。研究表明本区太原组地层是特征典型、类型多样的硅质碎屑与碳酸盐复合含煤沉积体系。

Based on the systematical study of sedimentology,some sedimentary features andfacies of the complex depositional systems in this area are emphatically described.Consideringthe facies assemblage patterns of regressive cycle,the paper puts forword four types of complexdepositional systems,i.e.the complex tidal flat,platform-barrier island,platform-lagoon and platform-delta,and states the characteristics of each type,The study shows that the TaiyuanFormation is the siliceous clast-carbonate complex coalbearing depositional system with typicalfeatures and various types.