摘要
板内断层网络是一个具有耗散结构性质的动力学系统,它通过自组织过程走向稳态。断层正常的继承性运动,是系统稳态的映射。岩石流变非线性蠕变模型结合实际观测,能可靠地给出稳态映射。异常是对稳态的偏离,存在着“源兆性断层运动异常”与“场兆性断层运动异常”。系统在趋稳过程中的异常时空协同性,为地震预报提供了途径。 通过信息合成得出的群体异常,其可靠性显著高于个体异常,并具有更为明确的物理意义。具体给出异常判别指标及提供地震要素信息的某些判据。
The Intraplate fault network is a dynamic system with the dissipative structure properties, which moves to the stable state through thc self-organization process. The normal and inherited motion of faults is an image of the stable state of system. The nonlinear rheological model of rock, combining with practie observation data, can reliably give the image about the stable state of fault network system. It is undoubted that anomaly is departure from stable state, and that there are fault-motion anomalies with both source-precursor and field-precursor proporeties in intrapate fault network. During the process of moving towards the stable state, the system shows a time-space coordination of anomalies, which can provide a way for prediction of earthquake.The colonial anomalies made of information combination are more reliable than the sole anomaly and have more clcarly physical significance. In this paper, the indicex of distinguishing anomaly and some criterions about information of earthquake elements are presented concretely.
出处
《地壳形变与地震》
CSCD
1990年第1期1-12,共12页
Crustal Deformation and Earthquake
