石油实验地质Issue(3)：274-279,6.DOI:10.11781/sysydz201303274
渤海湾盆地东营凹陷中央背斜带构造特征和演化机理
Tectonic feature and evolution mechanism of central anticline belt of Dongying Sag, Bohai Bay Basin
摘要
Abstract
The present of plastic substances such as evaporate beds in the 4th member (Es4 ) of the Shahejie Formation and the over-pressured mudstone layers in the 3rd member ( Es3 ) of the Shahejie Formation in the Dongying Sag provides the necessary material foundation for the application of Cantilever theory in this area. Since the late Es4 period, the loading state in the east of the Dongying Sag as well as its deformation resembled a plastically-founded cantilever which was based on the underlying cream salt layer, fixed on the southern Guangrao Uplift and free on the northern Chennan Fault. With its own gravity and the growing load of overburden sedi-ments, the amplitude of sinking in the free end was gradually increasing, making the basin look like a dustpan. During the sinking, plastic substances kept flowing and aggregating, forcing the overburden layer to arch and fi-nally forming the central anticline belt. Then the cantilever split into two parts which performed individually and continued to drive the evolution of the Dongying Sag.关键词
悬臂梁/演化机理/盐膏层/中央背斜带/东营凹陷/渤海湾盆地Key words
cantilever/evolution mechanism/evaporate bed/central anticline belt/Dongying Sag/Bohai Bay Basin分类
能源科技引用本文复制引用
路慎强,陈冠军,吴孔友,冯德永..渤海湾盆地东营凹陷中央背斜带构造特征和演化机理[J].石油实验地质,2013,(3):274-279,6.基金项目
国家自然科学基金项目(41272142)和山东省自然科学基金项目(ZR2012DM011)联合资助。 （41272142）
