国产GF-2和ZY-3卫星数据在活动断裂定量研究中的应用——以哈思山南麓断裂带为例  

Application of GF-2 and ZY-3 Satellite Data in Quantitative Research of Active Fault:A Case Study of the South Hasi Mountain Fault Zone

作　　者：鲁恒新 徐岳仁[1] 陈立泽[1] 张学民[1] 申旭辉[1,2] 崔静[2] LU Heng-xin XU Yue-ren CHEN Li-ze ZHANG Xue-min SHEN Xu-hui CUI Jing(Institute of Earthquake Science, CEA, Beijing 100036, China , Institute of Crustal Dynamics, CEA, Beijing 100085, China)

机构地区：[1]中国地震局地震预测研究所,北京100036 [2]中国地震局地壳应力研究所,北京100085

出　　处：《地震》2017年第1期121-133,共13页Earthquake

基　　金：国家自然科学基金(41502204);高分遥感地震监测与应急应用示范系统(31-Y30B09-9001-13/15);中央公益性科研院所基本科研业务专项(ZDJ2015-01)资助

摘　　要：利用国产GF-2和ZY-3卫星数据,以海原断裂带哈思山南麓断裂为例,应用目视综合解译、三维立体解译,结合野外验证,定量分析国产高分数据在活动构造定量研究中的应用潜力。GF-2融合影像展示了清晰的断层陡坎、冲沟左旋断错及同震破裂等现象,依据解译结果哈思山南麓断裂可分为正走滑型的荒凉滩—沙葱沟段、左旋走滑型的沙葱沟—黄河段以及以左旋运动为主黄河—沈家庄段。沿断裂带进行的1∶50 000遥感解译工作在地层边界、构造微地貌细节信息提取等方面均有较大的改进,解译得到的最小左旋水平位移量4.3m,反映1920年海原地震的水平同震位移量,而最大左旋水平位移量333.5m,则反映该段晚第四纪的持续运动。研究表明,海量国产高分辨率卫星数据在中国西部活动构造定量研究中可替代国外同等分辨率的数据,具有较强的应用价值。Images from GF-2 and ZY- mountain fault zone to study the fau mensional interpretation, and combin satellites w with visual with field tion potential of domestic high-resolution satellite ere used in a case study of south Hasi integrated interpretation and three-di- investigation. We analyzed the applicadata in quantitative research of active fault. GF-2 image can clearly show fault crap, stream displaced By fault and co-seismic ruptures. According to the interpretation result, the south Hasi Mountain fault zone can be divided into three segments, the normal-strike Huangliangtan-Shaconggou segment, the left-lateral strike Shaconggou-Yellow river segment, and the left-lateral strike Yellow river-Shenjiazhuang segment. The interpretation along the fault shows an improvement of extracting formation boundary, tectonic geomorphology and other information. The minimum displacement we have interpreted is about 4.3 m, which indicates the co-seismic displacement of the 1920 Haiyuan earthquake, and the maximum displacement of 333.5 m indicates the continuous movement of fault since the Late Quaternary. Our research shows that domestic high-resolution satellite data has a great potential in quantitative research of active fault.

关 键 词：高分二号(GF-2) 资源三号(ZY-3)立体像对 遥感解译 活动构造定量研究 海原断裂 哈思山南麓断裂 

分 类 号：P315.7[天文地球—地震学]