摘要
1989年和1990年,利用地物光谱仪对南口-孙河隐伏断裂进行了8条测线光谱反射率重复测量,并对各种影响因素予以详细分析。结果表明:(1)断裂两侧光谱反射率明显不同,上升盘的反射率高于下降盘;(2)时隔一年的原测线重复测量结果显示,断裂两侧光谱反射率的相对值有所变化。这表明本方法不但可以确定断裂有无及性质。而且可通过重复测量来分析断裂的活动特征。根据测量结果,认为南口-孙河断裂的具体位置应向北移,西断裂的东端可能在百善附近,未向东继续延伸。东断裂的最新活动似乎比西断裂强。
The measurements of spectral reflectance on the ground along 8 servey lines across a buried fault (Nankou-Sunhe fault) are carried out with a wild radiometer in Sep. 1989 and Oct. 1990, separatedly. The results indicate: (1)evedent diserepance of reflectance occur between the two sides of the fault, and the upward side has higher reflectance than the downward side; (2)the ratio of reflectance on the upward side to the downward side along the same line from the second measurments is larger than that from the first ones.That means that the approach can be used for: (1)determining whether a fault exsists and its featrure, if it exsists; (2)analyzirig the recent activity along faults by repeatedly measuring.
出处
《地壳形变与地震》
CSCD
1992年第2期23-31,共9页
Crustal Deformation and Earthquake
基金
地震科学联合基金
关键词
隐伏断裂
地面
光谱
测量
反射率
buried fault, spectral mesurement, reflectance.
