徐州地区大北望崮山组鲕粒灰岩的成岩作用与成岩环境  

The oolitic limetone's diagenesis and diagenetic environment of Gushan Formation in Dabeiwang profile,Xuzhou Area

作　　者：赵迪斐[1,2] 李利格[1,2] 毛潇潇[1,3] 杨玉娟[1,2] 车晶[3,4] 郭英海[1,2] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116 [2]煤层气资源与成藏过程教育部重点实验室,江苏徐州221008 [3]中国石油大学(北京),北京100000 [4]南京大学地球科学与工程学院,江苏南京210000

出　　处：《华北科技学院学报》2015年第5期8-15,共8页Journal of North China Institute of Science and Technology

基　　金：煤层气资源与成藏过程教育部重点实验室(中国矿业大学)开放基金资助项目(2015-007);中国矿业大学资源与地球科学学院科研训练项目(2013ZYXS07)

摘　　要：为研究大北望崮山组鲕粒灰岩的成岩作用,基于野外剖面与薄片观,对鲕粒灰岩的岩石学特征进行了研究,进而根据沉积环境演化特征,结合鲕粒多样性的分析成岩作用类型及阶段的划分,总结出崮山组发育的五种典型成岩环境。结果表明:崮山组成岩作用类型包括胶结作用、溶蚀作用、白云化作用、去白云化作用、压实作用、重结晶作用、交代作用等;成岩作用经历准同生成岩阶段,早期成岩阶段,中期成岩阶段和表生成岩阶段;在中缓坡的灰泥沉积至潮下高能浅滩鲕粒灰岩沉积环境重复发育且构成向上变浅序列的沉积背景下,崮山组经历了大气淡水成岩环境、海水成岩环境、混合水成岩环境、埋藏成岩环境以及表生成岩环境。To study the diagenesis of Gushan Formation in Dabeiwang profile, based on field profile and slice observation, the petrological characteristics and sedimentary environment of oolitic limetone in Gushan Formation were studied and five typical diagenetic environment were summarized in combenation with the division of oolitic diversity analysis and diagenesis types and stages. The results show that the diagenesis types in Gushan Formation including cementation, dissolution, dolomitisation, dedolomitisation, compaction, recrystallization, metasomatism and so on ; diagenesis stages including pene - sedimentary stage, early diagenetic stage, mid diagenetic stage and eodiagenesis stage ; under repeated and variation upward environment of gentle slope depositional environment to high--energy shoal oolitic limestone sedimentary environment, Gushan Formation experieneed meteoric diagenetie environment, marine diagenetic environment, mixed water diagenetic environment, burial diagenetic environment and surface diagenetic environment.

关 键 词：崮山组 鲕粒灰岩 成岩作用 成岩环境 

分 类 号：P588.2[天文地球—岩石学]