摘要
本文汇总了1989年10月19日大同—阳高M_s6.1地震前所出现的主要水化异常。在描述介绍15台项异常变化特点的基础上,讨论分析了此次地震水文地球化学前兆的主要特征:具有数量大、种类多、分布范围广等特点;并着重提出在华北地区一次中强地震前水化学观测项目,以显示短临异常更为突出。本文最后简要讨论了此次地震前后反映较为灵敏的测项—水中汞的变化机理。
This paper summarizes the main hydrochemical anomalies appeared before the Datong-Yanggao Ms 6.1 earthquake on October 19, 1989. Based on 15 anomalous variation features described. It is pointed out that the hylrogeochemical precursore of this earthquake were characterized by their multitude, a great variety and a wide distribution range; and that the hydrochemical observation items prior to a moderately strong earthquake in North China prominenty show short-term and impending anomalies. Finally, the variation mechanism of the mercury in water is brifly discussed in the paper, which was more sensitive than the other hydrochemical items before the Datong-Yanggao event.
出处
《地震》
CSCD
北大核心
1990年第4期58-64,共7页
Earthquake
