【摘要】 山东省长清县中寒武统的张夏-崮山剖面为华北地区张夏组的正层型剖面,其岩石地层、生物地层研究都较为成熟。从碳酸盐岩微相的角度,对其微相组分、微相类型和沉积环境作了进一步研究。在张夏-崮山地区的张夏组碳酸盐岩中识别出了6种微相类型:异地生物碎屑泥粒灰岩、附枝藻黏结灰岩、具再搬运鲕粒的粒泥-泥粒灰岩、含介壳及完整底栖化石的泥粒-粒泥灰岩、放射状鲕粒泥粒-粒泥灰岩和同心圆状鲕粒颗粒灰岩。微相类型的垂向叠覆及野外露头观察指示了5种沉积相带,自下而上分别为:局限台地鲕粒滩相、开阔台地海相、台地边缘鲕粒滩相、台地边缘藻礁相及台地边缘滩前斜坡相,表明山东省长清县张夏组为典型的镶边型碳酸盐岩台地沉积。更多还原

【Abstract】 This paper conducts a carbonate microfacies analysis on the Zhangxia Formation from the Zhangxia-Gushan area,Changqing County,Shandong Province.Six types of microfacies are recognized: allochthonous bioclastic packstone,epiphyton boundstones,packstone/wackestone with reworked ooids,packstone/wackestone with shell and benthic organism,ooid grainstone with radial ooids and ooid grainstone with concentric ooid.The stack pattern of these microfacies indicates five kinds of sedimentary facie: in ascending order,oolitic beach facies of restricted carbonate platform,open carbonate platform,oolitic beach facies at carbonate platform margin,algal reefs facies at carbonate platform margin and slope facies before the oolitic beach.This implies that the Zhangxia Formation in the study area should be mainly deposited in a rimmed carbonate platform.更多还原