濑劳龙庄断裂特征研究  

Study on the Features of the Lailao-Longzhuang Fault

作　　者：陈艳[1] 严小敏 李细光 

机构地区：[1]广西大学资源与冶金学院,广西南宁530004 [2]广西壮族自治区地震局,广西南宁530022

出　　处：《东华理工大学学报（自然科学版）》2011年第1期57-61,共5页Journal of East China University of Technology(Natural Science)

基　　金：广西科学研究与技术开发计划项目"北部湾盆地中强地震发震构造探测及成因研究"(桂科攻 10123009-2);"南宁盆地及其周边为来地震潜势及地震危险区划定研究"(桂科攻10123009-3)联合资助

摘　　要：右江断裂带是一条活动性断裂带,处于桂西断块区内。该区对地震事件有记载以来,沿断裂带曾发生了多次4.0～5.0级的地震,属于中强地震带。濑劳龙庄断裂是右江断裂带思林—坛洛段的重要组成部分。文章在濑劳龙庄断裂进行野外调查的基础上,采用构造解析的方法,对该断裂的构造样式、构造变形作用、内部分带特征等进行分析研究,探讨了断裂的活动期次以及构造运动方式,认为该断裂在中更新世经历了多期活动,并且其活动规模在减小,强度也在逐渐减弱。The Youjiang fault zone,located in the Guixi（Western Guangxi） fault block region is still active.Since the beginning of seismic record,earthquakes of magnitude 4.0～5.0 occurred in this region many times.Lailao-Longzhuang fault is the important part of the Silin-Tanluo segment of Youjiang fault zone.Based on the structures of the Lailao-Longzhuang fault,the basic structural type of the Lailao Longzhuang fault and structural deformation are analysed.It is considered that the fault had experienced several phases of movement in Middle Pleistocene period,and its intensity is weakening gradually.

关 键 词：右江断裂带 濑劳龙庄断裂 构造解析 

分 类 号：P5[天文地球—地质学]