信阳市燃气混气站场地及区域断裂活动性的综合研究  

Study on the activity of local faults under the site of gas station in Xinyang city

作　　者：李细光[1] 曾佐勋[1] 曾克峰[1] 樊光明[1] 董浩斌[2] 程新文[3] 

机构地区：[1]中国地质大学地球科学学院 [2]中国地质大学地球物理系,湖北武汉430074 [3]中国地质大学工程学院,湖北武汉430074

出　　处：《华北地震科学》2003年第2期29-36,共8页North China Earthquake Sciences

基　　金：河南省信阳市燃气发展有限公司混气站断裂活动性和场地稳定性研究

摘　　要：运用多学科、多手段相结合的方法,从断裂构造内部结构特征、构造岩研究、构造裂隙统计分析、红外相位法位移监测、高密度电阻率法、钻探验证、年代学研究、新构造运行分析、遥感图像解译、地震活动、数值模拟等方面入手,对信阳市燃气混气站的断裂活动性进行了全面而系统的论证,指出场区断裂规模小,第四纪无大规模差异升降运动,邻区地震活动小且弱,区域构造稳定性高,应力平缓,是一个稳定的"岛区";场区中部和南部断裂已基本愈合,无明显的电性异常;场区北部通过综合楼的断层在36万年左右有过活动,但此后没有重新活动,属于非全新活动断层。based on multidisciplinary research, such as tectonic geology, displacement observation with infrared phase, chronology study, neotectonics analysis, remote sensing analysis, seismicity analysis, numerical modeling, the activity of faults under the gas station of Xinyang city is studied. The results show that the scale of the faults is not large, and no large up and down motion in Quaternary. As the seismicity is weak in its vicinity, local structure is stable, and stress is smooth, it might be a stable 'island'. The faults in central and southern part of the site have been healed, so there is no electric anomaly. The faults north of the site had been active 360 thousand years ago, but have never moved again since then, so they belong to Holocene active faults. 

关 键 词：断裂活动性 非全新活动断层 混气站 信阳 

分 类 号：P315.2[天文地球—地震学]