摘要
为了揭示塔中北坡NE向走滑断裂的形成机制,本文在前人研究的基础上,利用相似分析原理,设计了构造物理模拟实验平台,完成了3组构造物理模拟对比实验,模拟了塔中北坡NE向走滑断裂的形成演化过程,分析了塔中北坡NE向走滑断裂的形成机制。结果表明:塔中北坡NE向走滑断裂受控于先存的基底断裂以及上奥陶统厚层泥岩的调节作用,在周缘构造活动的作用下形成;塔中地区NE向走滑断裂经历了形成期和复活期两个阶段,先后受到SW方向与SE方向作用力挤压。
In order to reveal the formation mechanism of the NE trending strike-slip faults in the north slope of Tazhong region,based on previous studies,this paper designed a structural physical simulation experiment platform by using the principle of similarity analysis,completed three sets of structural physical simulation comparison experiments,simulated the formation and evolution process,and analyzed the formation mechanism of the NE trending strike-slip faults in the north slope of Tazhong region.The results show that the NE trending strike-slip faults are controlled by the adjustment of pre-existing basement faults and thick mudstone(detachment zone)of the Upper Ordovician,and formed under the action of the surrounding tectonic activities.The NE trending strike-slip faults in Tazhong area experienced two stages of formation and resurrection,and were compressed by paleo-stresses from the southwest and southeast successively.
作者
何松高
李传新
张义平
庞思晨
He Songgao;Li Chuanxin;Zhang Yiping;Pang Sichen(School of Energy Resources,China University of Geosciences(Beijing),Beijing 100083,China;Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources/Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China;Chinese Academy of Geological Sciences,Beijing 100037,China)
出处
《吉林大学学报（地球科学版）》
CAS
CSCD
北大核心
2023年第1期73-87,共15页
Journal of Jilin University：Earth Science Edition
基金
国家自然科学基金项目(U19B6003-01)
自然资源部深地动力学重点实验室自主(开放)研究课题(J1901-16)
关键词
塔中NE向走滑断裂
构造物理模拟
滑脱层
先存断裂
构造演化
Tazhong NE trending strike-slip fault
analogue modelling
detachment zone
pre-existing fault
tectonic evolution
