摘要
论文基于最新的井、震资料,对中—新生代不同时期断裂发育特征以及构造演化的继承-改造特征进行分析。结果表明:研究区印支晚期在自南向北的挤压作用下,形成NW-EW向的逆冲断层和宽缓褶皱,盆地演化的初始格局开始形成,南北差异逐渐显现;燕山期-喜山期断裂活动则是继承和改造早期逆冲断裂,燕山早期挤压应力由NS向逐渐转换为NW向,发育近NS向和NNE向挤压-走滑断裂;燕山中期表现为中北区伸展裂陷,发育反转构造,南区则遭受剥蚀;燕山晚期整体抬升,发育逆冲断裂,遭受剥蚀;早喜山期为NW-ES向裂陷,中生代断层再次发生反转,发育一系列NE-NNE向伸展-走滑断裂;最终形成如今多性质、多方向的断裂系统和复杂多变的盆地基底。
Based on previous research and the latest well and seismic data,this article analyzes the development characteristics of faults and the inheritance transformation characteristics of structural evolution in different periods of the Meso-Cenozoic era.The results indicate that in the late Indosinian period of the study area,under the compression from south to north,NW-EW trending thrust faults and wide gentle folds were formed,and the initial pattern of basin evolution began to form,with differences gradually emerging between the north and south.The fault activity during the Yanshan-Himalayan period inherited and transformed early thrust faults.In the early Yanshan period,the compressive stress gradually shifted from NS to NW,and developed near NS and NNE compressional strike slip faults;The mid Yanshan period is characterized by extensional rifting in the central-northern region,with the development of reverse structures,while the southern region is subjected to erosion.In the late Yanshan period,there was overall uplift,the development of thrust faults,and erosion.The early Himalayan period was characterized by NW-ES trending rifts,and the Mesozoic faults underwent another reversal,developing a series of NE-NNE trending extensional strike slip faults.The ultimate formation of today's multi-faceted and multi-directional fault system and complex and variable basin basement.
作者
马天宇
蔡银涛
阎振华
郭波
马宝军
杨克基
李鹏
MA Tianyu;CAI Yintao;YAN Zhenhua;GUO Bo;MA Baojun;YANG Keji;LI Peng(Hebei Key Laboratory of Strategic Critical Mineral Resources,Shijiazhuang 050031,China;Hebei GEO University,Shijiazhuang 050031,China;Bureau of Geophysics Prospecting Inc.,CNPC,Baoding 072750,China;Environmental Geological Survey Institute of Hebei Coalfield Geological Bureau,Shijiazhuang 050085,China)
出处
《河北地质大学学报》
2025年第3期43-53,共11页
Journal of Hebei Geo University
关键词
黄骅坳陷
中—新生代
构造变形
构造演化
构造反转
the Huanghua Depression
the Meso-Cenozoic era
structural deformation
tectonic evolution
structural inversion
