摘要
在区域构造条件综合分析和三维构造精细解释的基础上,利用平面构造物理模拟的方法,分析了垦东—埕岛构造带的构造演化和形成机制。模拟结果表明,垦东—埕岛构造带的演化可以划分为3个阶段,即前中生代基底形成阶段、中生代末期挤压作用阶段和新生代以来的断陷—拗陷阶段。该构造带中的凸起带形成于中生代郯庐断裂左旋走滑挤压期,凹陷带形成于新生代。郯庐断裂的活动是构造带形成和发展的动力源。
Physical simulation experiment of plane structure was applied to study structural evolution and forming mechanism of Kengdong - Chengdao structural belt based on the comprehensive analysis of regional structural conditions and fine interpretation of 3D structure. The simulation result presented that there were 3 phases during the evolution process of the Kengdong -Chengdao structural belt, they were the basement forming phase in pre - Mesozoic era,the extrusion phase at the end of Mesozoic era and the fault depression - depression phase since Cenozoic era. The uplift belt of the structural belt was formed in the sinistral strike - slip extrusion period of Tanlu fault in Mesozoic,and the sag belt was formed in Cenozoic era. Movement of Tanlu fault was the source of forming and development of Kengdong - Chengdao structural belt.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2006年第2期8-10,共3页
Petroleum Geology and Recovery Efficiency
关键词
构造
物理模拟
左旋走滑挤压
右旋走滑伸展
垦东-埕岛构造带
structure,physical simulation,sinistral strike-slip extrusion, dextral strike-slip extension, Kengdong -Chengdao structural belt
