西秦岭北缘断裂漳县盆地段浅层人工地震及钻孔联合探测  

Both shallow seismic explorations and composite drilling section detection of buried segment of the fault zone along the north edge of west Qinling mountains in the Zhangxian basin

作　　者：刘芳晓 王爱国[2] 王金烁[2] 

机构地区：[1]中煤科工集团西安研究院有限公司,西安市高新区锦业一路82号710077 [2]中国地震局兰州地震研究所,兰州730000

出　　处：《中国地震》2017年第2期311-318,共8页Earthquake Research in China

基　　金：地震科技星火计划项目(XH16036);岷县漳县地震灾后恢复重建防灾减灾项目<漳县活动断层探测与地震危险性评价>联合资助

摘　　要：在地质调查与盆地区浅层人工地震初步勘探基础上,在西秦岭北缘断裂带漳县盆地隐伏段的盆地内布设了3条浅层人工地震详勘测线,用于精确定位该断层的空间展布,判定其浅地表活动特征。在此基础上,用钻孔联合剖面方法对人工地震探测结果进行验证,同时确定了各地震测线处断层上断点的位置和埋深,通过钻孔揭露断层错断地层的特点,认为西秦岭北缘断裂漳县盆地隐伏段错断全新统,指示该断层全新世以来活动性较强。Based on geological survey and preliminary exploration of shallow seismic in basin area, three detailed seismic lines are arranged to locate the spatial distribution and determine its shallow surface activity characteristics of buried segment of the fault zone along the north edge of western Qinling mountains in the Zhangxian basin. With the result as a reference, composite drilling sections accurately identify the location and depth of upper faulted point. The latest activity characteristics are analyzed in the paper.

关 键 词：西秦岭北缘断裂 漳县盆地 隐伏断层 浅层人工地震 钻孔联合剖面 全新统错断 

分 类 号：P315[天文地球—地震学]