摘要
本文利用构造运动的古形变速率、断层地貌的形态反映、现今构造形变测量结果、重力场和深部结构特征以及遥感影象揭示的构造形迹性质,研究活动断层的分段特性,讨论其粘滑与蠕滑问题。然后,根据系统科学原理,把红河断裂带及周围地域内相关的构造网络视为一个开放的系统,再根据分维数及应力分布的差异,把断裂带甫、北段分别划归两个子系统。地震活动的差异说明子系统走向稳态的方式不尽相同。
In this paper,the characteristics of segmentation and the problems of creep slip and stick slip in active fault are studied using the palaeo-deformation speed of structure motion,the fault topography, the recent deformation measurement, the features of gravity field and deep crustal construction,and the remote sensing imagery. The Honghe fauh zone and the tectonic network in around region are regarded as a large open system by the system theory, then the south and north segment of fault zone are divided into two sub-systems by the differences in fractal dimension and stress distribution. It shows from the difference in scismicity that the ways of moving towards the stable state of sub-systems are very distinct.
出处
《地壳形变与地震》
CSCD
1990年第2期74-83,共10页
Crustal Deformation and Earthquake
基金
地震科学联合基金
