STRUCTURAL STYLE IN LIAODONGWANXIALIAOHE BASIN

Qi Jiafu; Chen Fajing

doi:10.11743/ogg19920305

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STRUCTURAL STYLE IN LIAODONGWANXIALIAOHE BASIN
Vol. 13, Issue 3, Pages: 272-283(1992)
Online First：25 September 1992，

Published：1992
DOI： 10.11743/ogg19920305
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DOI：

Qi Jiafu, Chen Fajing. STRUCTURAL STYLE IN LIAODONGWANXIALIAOHE BASIN[J]. 1992, 13(3): 272-283. DOI： 10.11743/ogg19920305.

摘要

辽东湾-下辽河裂陷盆地内存在两个相对独立

又相互关联的新生代构造系统—伸展构造和走滑构造。伸展构造是控制盆地形成和演化的主体构造

由不同级别的伸展断层构成向北西西倾斜的大型铲式扇正断层连锁系

整个裂陷盆地是在该断层系上盘发育形成的。走滑构造分布在盆地东部边缘

由高角度或近直立的基底走滑断层系及其各式伴生构造组合而成。走滑构造改造了伸展构造。

Abstract

Two independent but interrelated Cenozoic structural systems—extensional structure and strike-slip structure developed in the Liaodongwan-Xialiaohe Basin.The extensional structure was the main structure styled in half graben-half horst assemblage that con-trolled the formation and evolution of the basin.The strike-slip structure was distributed in the east margin of the basin

reconstructed the extentianal structure and consisted of ligh-angle or nearly vertical basement strike-slip faults and verious associated structures including linar graben and horst

echelon folds

volcanic and mudstone diapir structures.The strike-slip structure with a dextral character may be related with activity of Tanlu deep fault since Oligocene.