论文部分内容阅读
对唐山地震前后地下水位动态图象的生成方法、时空演化特征及其形成演化模式的研究表明,唐山地震前后地下水位动态图象正负区和异常特征区的时空演化具有明显的规律性和阶段性。负值区的演化具有“收缩—扩展—急速扩展—发震”的特征;异常特征区的演化显示“迁移—扩展—稳定—发震—消失”的特征;滑动变差值显示“增大—减小—发震—急速减小”的变化过程。探讨了地下水位动态图象演化与构造变形、断层运动和上地幔物质上涌的关系,提出了唐山地震地下水位动态图象“场—区—源”的演化模式。
The study on the formation, temporal and spatial evolution characteristics and formation and evolution patterns of groundwater level dynamic images before and after the Tangshan earthquake show that the spatial and temporal evolution of the groundwater level anomaly zones and abnormal zones before and after the Tangshan earthquake have obvious regularities and stages Sex. The evolution of the negative value zone has the characteristics of “contraction-expansion-rapid expansion-seismogenic”; the evolution of the abnormal characteristic zone shows the characteristics of “migration-expansion-stability-seismogenic-disappearance”; the sliding variation shows “increasing- Reduce - Seismogenic - rapid reduction ”of the process of change. The relationship between dynamic image evolution and tectonic deformation of groundwater level, fault movement and material upwelling of upper mantle was discussed. The evolution pattern of “field - area - source” dynamic image of groundwater level in Tangshan earthquake was proposed.