【摘要】 遥感影像不仅从宏观上展现了活动断裂与其它活动构造的影像全貌,而且直观地揭示了活动断裂的影像信息,为分析断裂的活动状态及其与地震活动的相关性,识别发震构造与强震的孕育地段提供了丰富的信息。本文以萧山—球川断裂为例,在地质地貌特征上进行了详细的分析,揭示其几何学和运动学特征。采用图像增强与融合等处理方法,增加了图像的立体感,提高了遥感影像清晰度和解译精度。研究表明:NE向的萧山—球川断裂是杭州地区规模最大的断裂,它既具有早期左旋挤压剪切的特点,同时还具有后期右旋张扭的运动特征,表明该断裂带在各个地段和各个时期表现形式截然不同,对杭州地区古生代以来的地层沉积和构造演化有着直接的控制作用,形成了断裂两侧不同的地层与地貌特征。本次研究成果将对杭州地区大型工程建设、城市规划以及新构造运动的研究有一定的借鉴意义。更多还原

【Abstract】 Remote sensing image not only expresses the panorama of active faults and active tectonics on macroscopic view,but exposes the image information of active faults directly.It offers profuse information for analysing the active states of faults,their correlation with seismicity,the tectonics developing earthquakes and strong earthquake preparation.In this paper,we take Xiaoshan-Qiuchuan Faults as an example,the detailed rupture character is analyzed from a viewpoint of geological and topographic features,and the fault geometry and kinematics characteristics are revealed.Remote sensing image definition and precision were greatly improved by image enhancements and fusions.The result shows that Xiaoshan-Qiuchuan Faults which is of NE-direction are the largest faults in Hangzhou area with different form in different segment and time,not only have left-revolve extrusive shear characteristic early,but right-revolve wrenched movement characteristic later.It has controlled sedimentary strata and tectonic evolution since Paleozoic and formed different stratum and topographic features.The result will offer significance to large engineering project、city planning and study of neotectonies.更多还原