海洋地质与第四纪地质2025，Vol.45Issue(1)：154-167,14.DOI:10.16562/j.cnki.0256-1492.2023112206
渤海湾盆地中部中生代多幕构造变形及其形成机制
Mesozoic multistage deformation and mechanism of the Central Bohai Bay Basin formation
摘要
Abstract
Revealing the structural characteristics of multistage deformations and evolution of the Central Bohai Bay Basin during the Indosinian and Yanshanian could provide theoretical support for oil and gas exploration of buried-hills.Based on a detailed structural analysis on the 3D seismic data in the study area,we determined the stratigraphic division,tectonic sequence,and superimposed modification of late deformation on early one,and analyzed the mechanism of the deformation in each stage.The Central Bohai Bay Basin developed three main groups of faults in the Mesozoic.The Indosinian Movement triggered northward thrusting,forming NW to nearly EW-trending imbricated thrust faults that underwent negative inversion during the Late Jurassic to Early Cretaceous.The NNE to nearly SN-trending tear faults formed during the Indosinian regulated the movement among different blocks.The Yanshanian Movement evidenced two episodes of NW-SE compression during the late Middle Jurassic and Late Cretaceous,respectively.The compression formed NE-SW-trending reverse faults of which some parts inherited Indosinian fault plane.In addition,the Indosinian tear faults evolved into transpressional sinistral strike-slip faults in the Yanshanian,constraining the scale of the NE-trending reverse faults.关键词
叠加改造/中生代/印支运动/燕山运动/渤海湾盆地Key words
superimposed modification/Mesozoic/Indosinian/Yanshanian/Bohai Bay Basin分类
海洋科学引用本文复制引用
李金月,黄志,胡志伟,赵淑娟,戴黎明,杨宇,李法坤,占华旺..渤海湾盆地中部中生代多幕构造变形及其形成机制[J].海洋地质与第四纪地质,2025,45(1):154-167,14.基金项目
崂山实验室科技创新项目"基于数字孪生的全球深时地貌重塑与资源环境预测"(LSKJ202204400) （LSKJ202204400）
中国海洋石油有限公司"渤中凹陷中低位潜山构造演化、断裂体系分布及其控圈作用研究服务项目"(CCL2021TJT0NST0525) （CCL2021TJT0NST0525）
