论文部分内容阅读
研究了唐山地震及其强余震临震前,北京地区枯井喷气发响以及浅层地下水变浑和水位上升的特征和原因,论述了这些现象可能含有前兆信息的理由,并研究了异常的动力、机理、地质背景和物质来源,讨论了这些异常与唐山地震的关系以及研究地下水与地震关系的意义.由于未发现深部气体的大量喷涌,故认为这些异常现象反映了浅层地下水和气体的异常运移,是在统一的区域应力场作用下,由北京地区活动断层脉冲形式的附加构造应力场作用于一定水文地质结构的结果.认为深入研究地下水和气的异常运移,可能对地震预报有一定意义.
Before the Tangshan earthquake and its strong aftershocks, the characteristics and causes of the jet lag of dry wells in Beijing, as well as the muddy and water level rise of the shallow groundwater were studied. The reasons why these phenomena may contain precursory information were discussed. The abnormal motivation, Mechanism, geologic background and material sources, the relationship between these anomalies and the Tangshan earthquake and the significance of studying the relationship between groundwater and earthquakes are discussed. Since no large amount of deep gas gushing is found, these anomalies reflect the abnormal movement of shallow groundwater and gas Is a result of the additional tectonic stress field in the form of active fault pulses acting on a certain hydrogeological structure under the action of uniform regional stress field.It is concluded that in-depth study on the abnormal migration of groundwater and gas may have certain significance for earthquake prediction .