摘要
通过对塔北６条区域性主干断裂力学性质及发育历史的分析，论述了控制本区构造变形的基本断裂格局。认为：（１）盆地北缘南天山和西南缘昆仑山两个板块边缘活动所产生的挤压应力在塔北的联合和叠加，造成了该区现今“南北分带、东西分块”的构造格局．（２）挤压应力是塔北构造变形的主导应力，海西－印支期ＮＥＥ和ＮＷ向两组区域断裂分别平行于两板块边缘，均属压性逆冲断裂，平移分量极小．ＮＷ向断裂主体不是扭断裂，只是喜山期叠加了盖层滑脱平移的影响。（３）基底逆冲断裂活动是塔北构造变形的原动力，盖层滑脱加剧了变形强度，两者共同控制着塔北的构造样式和油气构造圈闭类型．
Based on the analysis of kinematics and dynamics of six major faults in Northern Tarim basin,the regional tectonic environment of the structural deformation in the area is discussed in this paper.The main conclusions obtained from the studies are as follows:(1) regional compression is a basic property of structural deformation in the Northern Tarim basin,which was controlled by Tarim plate convergence in northern and southwestern margins;(2)the characteristics of structural deformation change regularly from north to south, and from east to west part of the studied area: and (3)besides the deformation caused by the regional compression,the detachment of different levels also strengthens the deformation of structures.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1995年第3期237-242,共6页
Earth Science-Journal of China University of Geosciences
基金
"八五"国家科技攻关项目
关键词
塔里木盆地北部
断裂格架
基底逆冲
滑脱
Northern Tarim basin,fault framework,basement-involved thrust,detachment,structural conjunction and superimposition and superimposition.
