北黄海盆地东部M隆起构造特征及演化

发布时间：2019-08-15 07:14

【摘要】：北黄海盆地是中国东部近海中生代断陷型盆地,详细记载着中国东部复杂的构造活动信息,期间经历了多期岩浆活动和构造反转。M隆起位于北黄海盆地东部,其构造活动记录比周边的坳陷更为详细。为充分认识M隆起的地质结构及沉积响应关系,在充分利用地震、钻测井等资料的基础上,结合区域构造背景,从构造运动学和动力学等方面探讨分析其构造演化历程,进而为北黄海盆地乃至中国东部地区的构造演化提供新的依据。高精度三维地震资料及地质分析揭示,该隆起区发育有5个典型的不整合面,纵向上可划分为5个构造层。结合北黄海盆地所处构造位置、构造变形和沉积充填特征,及板块运动和区域构造演化史,将北黄海盆地东部M隆起自中侏罗世至今的构造演化划分为5个阶段(共9期):裂陷阶段(稳定沉积期、掀斜形成期、早白垩世凹陷沉积期)、构造反转阶段(晚白垩世抬升剥蚀期)、再次裂陷阶段(早渐新世初沉积期、早渐新世末剥蚀期、F2断层活跃期)、再次构造反转阶段(整体抬升期)、区域沉降阶段(区域沉降期)。
[Abstract]:The North Yellow Sea basin is a Mesozoic fault basin off the coast of eastern China, which records in detail the complex tectonic activity information in eastern China, during which it experienced many stages of magmatic activity and tectonic inversion. M uplift is located in the eastern part of the North Yellow Sea basin, and its tectonic activity records are more detailed than those in the surrounding depression. In order to fully understand the geological structure and sedimentary response relationship of M uplift, on the basis of making full use of seismic and drilling logging data, combined with the regional tectonic background, the tectonic evolution process is discussed and analyzed from the aspects of tectonic kinematics and dynamics, so as to provide a new basis for the tectonic evolution of the North Yellow Sea Basin and even the eastern part of China. High precision 3D seismic data and geological analysis show that there are five typical unconformities in the uplift area, which can be divided into five tectonic layers longitudinally. Based on the tectonic location, tectonic deformation and sedimentary filling characteristics, plate movement and regional tectonic evolution history of the North Yellow Sea Basin, the tectonic evolution of the M uplift in the eastern part of the North Yellow Sea Basin from the Middle Jurassic to the present is divided into five stages: the rifting stage (stable sedimentary stage, tilting formation stage, early Cretaceous sag sedimentary stage), and the tectonic inversion stage (late Cretaceous uplift and denudation stage). The second rifting stage (early Oligocene sedimentary stage, early Oligocene late denudation period, F2 fault active stage), retectonic inversion stage (global uplift stage), regional subsidence stage (regional subsidence stage).
【作者单位】：中国地质大学资源学院石油系;中国地质大学构造与油气资源教育部重点实验室;广州海洋地质调查局;
【基金】：基于流体底辟构造的流体活动信息分析(40602015) 中国地质大学(武汉)教育部实验室开放资金资助项目(skj2014008) 国家基础地质调查项目“南方页岩气综合评价参数优选及地球物理表征方法”(12120114055801) 国家十三五油气重大子课题“页岩气区域选区评价方法研究”(2016ZX05025002-003) 111引智项目“沉积盆地动力学与油气富集机理”(B14031)
【分类号】：P736.1

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