摘要
本文通过对地下水中溶解氡和逸出氡的对比观测及其地震前兆的研究,阐明了地下水中逸出气氡对地壳岩石的变化具有较高的灵敏度,逸出气氡能够反映地壳岩石的潮汐变化。1989年大同阳高6.1级地震逸出气氡的变化突出、幅度大,表明它对地下应力微小变化能起到放大的作用。因此,逸出气氡作为新的地震前兆观测项目,具有广阔的发展前景。
The authors in this article discussed the high sensibility of gas Rn to the stress change in rock stratum by making observation of Rn gas and dissolved Rn in groundwater and studying the precursors of Rn gas and dissolved Rn in underground water before earthquake. The change of earth tide in rock stratum can be observed with the methods of gas Rn in groundwater. The change of gas Rn in the Da-tong-Yanggao earthquake with a great range 1989 indicated that the gas Rn can reveal the slightly related change of stress in rock stratum in a magnified way. So the gas Rn in groundwater, which is a new observation item of earthquake precursors in groundwater, has an expansively developing prospects.
出处
《中国地震》
CSCD
北大核心
1992年第1期18-25,共8页
Earthquake Research in China
基金
国家地震科学联合基金会资助
