汤原断陷断裂特征及构造样式分析  

Fault Characteristics and Analysis of Tectonic Styles in Tangyuan Fault-Depression

作　　者：沈野[1] 刘财[1] 蒋黎[2] 王世煜[1] 王典[1] 

机构地区：[1]吉林大学地球探测科学与技术学院,长春130026 [2]吉林大学地球科学学院,长春130061

出　　处：《吉林大学学报（地球科学版）》2006年第S2期104-108,共5页Journal of Jilin University：Earth Science Edition

摘　　要：基于汤原断陷的4条主干地震剖面的重新构造解释,对断陷的整体构造样式进行了深入的介绍,总结出两种伸展构造样式、3种收缩构造样式、一种扭动构造样式以及一种反转构造样式.通过对不同构造样式的应力场分析,综合地震剖面特征,证明汤原断陷演化过程经历了5期的应力场变化。根据构造运动期次分析,发现局部构造与油气的生成时间具有较好的配置关系,断裂构造具有较好的封闭性。Based on the new structure explainations of four trunk seismic profiles in Tangyuan fault- depression,this paper introduces deeply about its whole tectonic styles,and summarizes two extensional tectonic styles,three shrinkage tectonic styles,one twist tectonic style and one reverse tectonic style. Moreover,five times changes of stress field in the evolvement of Tangyuan huh-depression have been proved,by analyzing stress field of different tectonic styles and synthetizing characteristics of seismic profiles.Though the analysis of structure movement we find that there is a good relationship between partial structure and oil gas creative time,and preferable closeness of fracture structure.

关 键 词：汤原断陷 地震剖面 构造样式 应力场 

分 类 号：P542.3[天文地球—构造地质学]