地质科学2025，Vol.60Issue(4)：925-940,16.DOI:10.12017/dzkx.2025.061
胜利滩浅海地区北西向构造带组成及形成演化
Combination,genesis and evolution of NW trending tectonic belt in the paralic area of Shengli oilfield
摘要
Abstract
The northwestward distribution of hydrocarbon reservoir in the paralic area of Shengli oilfield indicates that there is a NW-trending tectonic zone controlling accumulation in the area.However,the composition,characteristics,and genesis of this NW-trending tectonic zone have long remained poorly understood.In this work,based on the seismic section data,tectonic layer data,fracture analysis and regional tectonic analysis,it is determined that there are four types of NW-trending tectonic zones in the paralic area,namely,NW-trending thrust-folds zone,left en echelon faults zone,basement buried hills zone and basin margin uplifts zone.The NW-trending thrust-folds zone was formed in the Middle to Late Triassic,including the Wuhaozhuang fault,the Guxi fault,and the NW-trending folds,which is a product of the foreland deformation of orogeny between the North and South China plates.The NW-trending left echelon faults zone was formed at the earliest of the Early Cretaceous,a series of S-N faults were arranged in a left en echelon order,which was the derived R'shear zone of the large-scale sinistral strike-slip of the Tan-Lu fault zone in the Yanshanian B curtain,and the north-south faults were also the derived T-shear of the Wuhaozhuang fault,the two kinds of derived tectonics were reinforced by each other to superimpose the formation of the left echelon faults zone.The NW-trending buried hills zone was formed in the Early Cretaceous during large-scale regional NW-SE extension,and the lower buried hills zone in the north is a transtensional fault block zone controlled by north-south faults,while the higher buried hills zone in the south is an extensional fault block zone controlled by north-east faults.The NW-trending basin margin uplifts zone was formed during the S-N extensional in the Paleogene,and the lower uplifts zone in the north is controlled by the S-N transform faults in the west of each uplift,while the higher uplifts zone in the south is controlled by the NW and NE-trending transtensional faults.The resurrection of basement faults in different trends in a regional extension is the fundamental reason for controlling the development of the Cretaceous buried hills zone and the Paleocene uplifts zone.关键词
滩浅海地区/北西向构造带/变换构造/基底断层/断裂复活Key words
Paralic area/NW trending tectonic belt/Transfer fault/Basement fault/Fault reactivation分类
天文与地球科学引用本文复制引用
谢成龙,宋飞梓,朱光,何文彬..胜利滩浅海地区北西向构造带组成及形成演化[J].地质科学,2025,60(4):925-940,16.基金项目
国家自然科学基金面上项目(编号:42372265)资助 （编号:42372265）
