东濮凹陷平衡剖面与构造演化研究  

Balanced section and tectonic evolution in the Dongpu depression.

作　　者：苏惠[1] 曲丽萍[1] 李桂霞[1] 王艺景[1] 宋静[1] 

机构地区：[1]中原石油勘探局勘探开发科学研究院

出　　处：《石油地球物理勘探》2000年第4期469-478,共10页Oil Geophysical Prospecting

摘　　要：本文运用平衡剖面的原理和方法研究了东濮凹陷构造演化史 ,并对其构造运动进行了分析 ,认为东濮凹陷的形成和演化受基底构造和断裂作用控制 ,其演化过程可分成 6个阶段 ;东濮凹陷南宽北窄的构造特征主要是拉张量南大北小造成的 ;东濮凹陷滑脱面深度不大 ,基底沉降南部普遍大于北部 ;西洼南部 ,滑脱面深度较大 ,构造幅度大 ,是油气勘探的有利地区。With the use of both principle and method of balanced section, the tectonic evolution of Dongpu depression was studied, and the tectonic movement was analysed carefully. The study and analysis led to the following conclusions: ·The generation and tectonic evolution of Dongpu depression were controlled by both basement tectonics and basement faulting. ·Tectonic evolution involved six phases. ·The south part of Dongpu depression is wider than its north part because the south tensional force was more powerful than the north tensional force. ·The detachment surface is not deep, and basement subsidence in south part was greater than that in north part. ·The south part of west depression has deep detachment surface and high structure amplitude, so it is a favourable area for hydrocarbon exploration.

关 键 词：东濮凹陷 平衡剖面 构造演化 构造运动学 基底沉降 

分 类 号：P618.130.2[天文地球—矿床学] P618.130.8[天文地球—地质学]