层序地层格架与煤岩层对比--层序地层学在山西阳曲煤田普查勘探中的应用

在华北晚古生代聚煤盆地及勘探区周边地区含煤地层沉积学、层序地层学的已有成果基础上,立足于单剖面定量沉积环境分析和露头层序地层分析,对阳曲普查勘探区含煤地层进行了进一步的高分辨率层序地层学研究,识别出基岩型、陆表海II型、陆表海I型层序界面和基岩泻湖型、台地-滨岸复合型、碎屑滨岸型、沼泽型、浅水三角洲型准层序类型,划分了二个四级层序、14个准层序,建立了准层序级别的层序地层格架,籍此进行了区内及邻区含煤地层主要煤岩层的对比。探讨、总结了应用层序地层学理论进行勘探区煤岩层对比的方法、程序

Sequence Stratigraphic Framework and Correlation of Coal and Rock Seams --Sequence stratigraphy applied to coal exploration inYang qu,Shanxi

Based on the previous studies on the sedimentoIogy and seguence stratigraphy of coaI-bearing strata in Iate paIeozoic basin of North China and the peripheraI expIoration area, high-resouItion seguence stratigraphic study has been performed on coaI-bearing strata in the expIoration area of Yanggu area according to the guantitative depositionaI environment anaIysis on individuaI section, and outcrop seguence stratigraphy.We have recognized 3 types of basement seguence interfaces, type I and of epicontinentaI sea, and 5 types of paraseguences basement Iagoon, pIatform and coast compIex, cIastic offshore, swamp and shaIIow deIta. Furthermore, 2 seguences of and 14 paraseguences have been cIassified, on which the seguence stratigraphy framework has been set up in the study area on the bases of these studies, the main coaI and rock seams of the expIortion area and its vicinity have been correIted. As a resuIt, the paper aIso discussed and summarized the method and procedure to appIy theories of seguence stratigraphy to correIation of coaI and rock seams in the expIoration area.