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

发布时间：2018-02-12 15:31

本文关键词： 高分二号(GF-) 资源三号(ZY-)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　出处：《地震》2017年01期 　论文类型：期刊论文

【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。
[Abstract]:Based on the domestic GF-2 and ZY-3 satellite data and taking the southern foot fault of Hashi Mountain in Haiyuan fault zone as an example, comprehensive visual interpretation, three-dimensional interpretation and field verification are used. The application potential of quantitative analysis of domestic high score data in quantitative study of active structure. GF-2 fusion image shows clear phenomena such as fault scarp, left spin fault fault of gully and coearthquake rupture, etc. According to the interpretation results, the south foot fault of Hashi Mountain can be divided into the barren beach and shallot gully section with normal strike-slip type. The left strike-slip Shajiaogou-Yellow River section and the Huanghe Shenjiazhuang section dominated by left-lateral movement have been greatly improved in the 1:50 remote sensing interpretation work along the fault zone in stratigraphic boundary and extraction of detailed information of structural microgeomorphology, etc. The minimum left-lateral displacement of 4.3 m, which reflects the horizontal co-seismic displacement of the Haiyuan earthquake of 1920, and the maximum left-lateral displacement of 333.5 m, reflects the sustained movement of the late Quaternary period. The massive domestic high-resolution satellite data can replace the same resolution data of foreign countries in the quantitative study of active structure in western China, and it has strong application value.
【作者单位】：中国地震局地震预测研究所;中国地震局地壳应力研究所;
【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
【分类号】：P315.7

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