【摘要】 从定襄泉水点的水文地质条件、水氡异常特点、水氡变化的正常环境影响因素等方面对1996年出现的异常可靠性进行了论证.认为异常除与气温和降水的影响有关外,还与岩石的应力—应变变化有关,是1998年张北6.2级地震比较可信的前兆异常.更多还原

【Abstract】 The reliability of anomaly of waterradon in Dingxiang spring observation in 1996 is discussed,based on data of the hydrogeologic condition at the spring,the characteristics of waterradon anomaly and the normal influence fectors from environment.It is considered that the anomaly of waterradon not only correlates with air temperature and waterfall,but also with variation of stressstrain in rock,is the reliable precursor anomaly before Zhangbei M6.2 earthquake in 1998.更多还原