摘要
简要地介绍了平衡剖面技术的基本原理及在新疆焉耆盆地断裂演化和圈闭研究中的应用。借助该项技术确定了盆地内断裂发育的时空关系及性质,指出盆地内中、新生代的断裂发育过程中有早缓晚骤、早正晚逆( 反转) 的特征,认为盆地内的构造圈闭主要有两个形成时期,即侏罗纪末的燕山运动时期和第三纪末的喜山运动时期,并且前者形成的圈闭有效性要好于后者。
Presented in this article is a brief introduction of the general principle of balanced section technique and its practical application to the fault evolution and the trap formation research in Yanqi Basin,Xinjiang.With the aid of the balanced section the characteristics and the spatiotemporal relation of the fault system are determined.It is indicated that during the Mesozoic and Cenozoic the fault movement in the basin was mild and some main faults were once normal in the early,but they got intense and reverse in the late.It is also pointed out that the structural traps in Yanqi Basin have formed mainly in 2 periods:Yanshan Period in Late Jurassic and Himalayan Period in Late Tertiary,and the availability of the traps formed in the former period is better than that formed in the latter period.
出处
《河南地质》
1999年第4期297-302,共6页
Henan Geology
关键词
平衡剖面
断裂演化
构造圈闭
圈闭
石油
盆地
balanced section,fault evolution,structural trap,trap availability,Yanqi Basin