摘要
本文通过从遥感资料中提取具有现代成因意义的共轭剪裂,应用一对扭裂缝所夹锐角等分线一致位于主压缩方向的原则,探索本区的现代构造应力场,在通过对比各种地形,地质资料与野外观察的途径查明共轭剪裂的现代构造形迹特征后,对区内123对共轭剪裂,按其产出情况,分别按单个,群集与全区三个空间尺度计算了它们的锐角等分线的方位,以此求得局部、小区与全区的现代构造应力场主压应力轴的方位,本区的主压应力轴走向北西西—南东东,平均方位角为100°.
This paper attemps to take advantage of conjugated shear joints on the Landsat imdges,combined with geology surrey and makes exploration on the recent tectonic stress field in this region. The shearing and fracturing charaxteristics of the conjugated shear joints on the Landsat imdges are proved by geological features on the surface.123 pairs of conjugated shear joints is calculated in size of single,group and all region separately.A average compressional stress direction adout 100° is obtained.
出处
《地震学刊》
CSCD
1989年第2期65-68,共4页
Journal of Seismology
