利用水准数据分析大别造山带东段构造活动特征  

ANALYSIS OF GEOTECTONIC CHARACTERISTICS IN EASTERN DABIE OROGENIC BELT BASED ON LEVELING DATA

作　　者：肖伟鹏[1] 袁泉[1] 

机构地区：[1]安徽省地震局,安徽合肥230031

出　　处：《高原地震》2015年第1期14-22,共9页Plateau Earthquake Research

基　　金：安徽省地震科研基金青年项目(项目编号:20130701)

摘　　要：利用大别造山带东段(霍山震情窗)自2000年以来的精密水准资料,并结合区域构造环境及地震资料对东大别造山带内的十年尺度的垂直形变特征和地震活动相关性进行初步研究。结果显示,位于断裂交汇处的构造活动活跃,小震频发。水准场地表现出来的垂直形变速率增大或减小,与周边中等强度地震有很明显的对应关系。地震活动在时间分布上并不均匀,不同场地的水准测点也显示出不同的升、降交替变化。各水准场地均有映震情况,其中仙姑坟水准场地的映震效果最好。The correlation between vertical deformation characteristics and earthquakes in decade -scale is an- alyzed by the precision leveling data on eastern Dabie Mountains（ Huoshan seismic window）since 2000 and the regional tectonic and seismic data. The results show that tectonic movements are active with a large number of small earthquakes in the junction of faults. There was a clear correspondence with the medium intensity earth- quakes and the increase or decrease of the rate of vertical deformation in leveling field. Seismicity distribution is not uniform in time and the leveling field in different sites displayed different situation with up or down alter- nating. There is earthquake - reflecting in each leveling field, and the Xiangufen site is the best.

关 键 词：大别造山带东段 水准数据 垂直形变场 构造特征 映震情况 

分 类 号：P315.2[天文地球—地震学]