山西断陷带主要活动断层基本特征与避让区划  

Basic Characteristics of Main Active Faults and Zoning for Avoidance in the Shanxi Rift Zone

作　　者：史双双[1,2] 焦洁钰 刘艳春[1,2] 闫小兵[1,2] SHI Shuangshuang;JIAO Jieyu;LIU Yanchun;YAN Xiaobing(Shanxi Earthquake Agency,Taiyuan,Shanxi 030002 China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局,山西太原030002 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2023年第3期46-51,共6页Earthquake Research in Shanxi

基　　金：山西省青年基金(201701D221019);地震科技星火计划项目(XH23008YA)。

摘　　要：山西断陷带是华北地区新近纪以来构造活动强烈的典型代表,其控盆边界断裂的活动是造成山西省地震灾害风险的重要因素之一。在山西断陷带14条断层填图研究的基础上,利用晚更新世以来滑动速率的比对来表征断层的晚第四纪运动学特征,得出交城断裂、霍山山前断裂和六棱山山前断裂晚更新世以来的滑动速率分别为>1.4 mm/a、0.76~1.49 mm/a和1.6 mm/a,其余断裂均小于1 mm/a。同时,结合山西省地震灾害风险普查工程中的方案划分山西断陷带活动断层避让区划,探讨不断加强完善山西省活动断层探测工作。The Shanxi Rift Zone is a representative example of intense tectonic activity in the Neogene period in the North China region.The activity of its bounding faults significantly contributes to the seismic risk in Shanxi Province.Based on mapping studies of 14 faults within the Shanxi Rift Zone,this research utilizes comparisons of slip rates since the Late Pleistocene to characterize the Quaternary kinematic behavior of the faults.The study reveals that the Late Pleistocene slip rates for the Jiaocheng Fault,Huoshan Foreland Fault,and Liulengshan Foreland Fault are>1.4 mm/year,0.76-1.49 mm/year,and 1.6 mm/year respectively,while the slip rates for the other faults are all less than 1mm/year.Furthermore,in conjunction with the seismic hazard risk assessment project in Shanxi Province,this study outlines zoning for avoidance of active faults in the Shanxi Rift Zone,emphasizing the need to continuously strengthen and improve the detection of active faults in Shanxi Province.

关 键 词：活动断层 山西断陷带 滑动速率 断层避让 

分 类 号：P315.2[天文地球—地震学]