塔里木盆地玉北地区玉东3断裂带构造转换特征分析  

Transfer Zone Characteristics of the Yudong 3 Fault Zone in Yubei Area of the Tarim Basin

作　　者：赵彬彬[1,2,3] 汤良杰[1,2] 余腾孝[4] 陈刚[1,2] 岳勇[4] 杨勇[1,2] 张旭光[4] 潘玉芳[1,2] 

机构地区：[1]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [2]中国石油大学(北京)盆地与油藏研究中心,北京102249 [3]新疆维吾尔自治区地震局,新疆乌鲁木齐830011 [4]中国石化西北油田分公司,新疆乌鲁木齐830011

出　　处：《现代地质》2014年第6期1260-1265,共6页Geoscience

基　　金：国家自然科学基金项目(41172125);国家"973"计划项目(2012CB214804);中国石化西北油田分公司项目(KY2012-S-051)

摘　　要：通过对塔里木盆地玉北地区最新的三维地震资料进行解释分析,运用断层的位移-距离分析方法,探讨了玉东3断裂带的转换带特征,并分析了转换带形成的三个阶段。玉北地区断裂发育,主要为北西走向。由北向南,玉东3断裂带从北东段到南西段断层倾向由SE向逐渐变为NW向,根据这种变化及其剖面组合关系,采用Morley对转换带的分类方案,确定在转换段内形成了聚敛叠覆型转换带。转换段的转换带传递了北东段断层和南西段断层的位移量,使玉东3断裂带的总位移量保持一致。该转换带的形成演化主要经历了孤立逆断层、转换带形成和转换带复杂化等三个阶段。Based on the interpretation of the latest 3D seismic profiles,this study discussed the characteristic and evolution of the transfer zone in Yudong 3 fault belt in Tarim Basin according to the analysis of displace-ment-distance method.The Yubei area mainly consists of a number of faults striking northwest.From the north-east section to the southwest section,the direction of the main fault gradually changed from southeast to north-west.According to the combination and intersection relations of fault structures in this area,the transfer zone in transform section was interpreted as convergent-overlap type based on the classification of Morley.The transfer zone between the two sections has transferred their displacements and keeps the conservation of fault displace-ments in Yudong 3 fault zone.The evolution of this transfer zone can be divided into three stages,i.e.the for-mation of isolated reverse fault,formation of transfer-zone and complication of transfer zone.

关 键 词：玉北地区 玉东3断裂带 分段性 转换带 演化特征 

分 类 号：P542[天文地球—构造地质学]