车镇凹陷上古生界高分辨率层序地层研究HIGH RESOLUTION SEQUENCE STRATIGRAPHY OF THE UPPER PALEOZOIC IN THE CHEZHEN SAG,SHANDONG PROVINCE
吕大炜,李增学,李文涛,柳汉丰,刘海燕,吴立荣
摘要(Abstract)：
以高分辨率层序地层学原理为指导,利用测井、岩芯和录井等资料,对车镇凹陷上古生界不同级次基准面旋回进行了高分辨率层序划分。将上古生界划分为2个超长期、7个长期、16个中期和45个短期基准面旋回,精细对比研究了短期、中期和长期基准面旋回。其中,短期基准面旋回可分为2大类3种亚类,并区别出A型、B型不对称短期基准面旋回和C型对称性短期基准面旋回,总结了它们的结构特征、形成条件、岩性岩相组成;通过研究不同沉积体系下中期、长期基准面旋回特点,得出中期、长期基准面旋回的特点和发育特征,区别出不同沉积环境下层序界面特点;分析了研究区内超长期基准面旋回特征,综合分析认为车镇凹陷超长期基准面旋回以下降半旋回为主。
关键词(KeyWords)： 高分辨率层序地层学;基准面旋回;上古生界;车镇凹陷;山东
基金项目(Foundation): 国家重点基础研究发展计划(973计划)项目(2003CB214608)资助
作者(Author): 吕大炜,李增学,李文涛,柳汉丰,刘海燕,吴立荣
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