河北及邻近地区地下水溶解二氧化碳、氢和氦分布的地震地质特征  

SEISMOGEOLOGICAL FEATURES OF THE DISSOLVED CO_2,H_2AND HE IN GROUNDWATER IN HEBEI PROVINCE AND ITS ADJACENT AREA

作　　者：王永才[1] 孙香荣[1] 

机构地区：[1]河北省地震局

出　　处：《华北地震科学》1992年第2期58-66,共9页North China Earthquake Sciences

摘　　要：在水文地球化学背景场研究中发现河北及邻近地区地下水溶解CO_2、H_2和H_e的富集与地震活动带或断裂带相吻合。本文研究了它们与地震活动带、深断裂带或上地壳体分界线之间的关系。根据CO_2分布特征和δ^(13)C值,得出富集带内的CO_2主要来自碳酸盐岩的变质作用;根据H_2和H_e分布的地震地质特征和可能的形成机理,指出H_2和H_e可能主要来自上地壳的火成岩体。因此CO_2、H_2和H_e可能是潜在震源区的重要地球化学标志,并且是映震灵敏的水文地球化学组分。In the study of the hydrogeochemical background, it has been found that the enrichment of the dis-solved CO2, H2 and He in groundwater in Hebei Province can be related to the seismically active belts,deep fault zones and the upper crust boundary, and their relationships are discussed in detail. Based on the characteristic distribution of CO2 and δC13 analysis, it has been suggested that the CO2 enriched in those zones mainly originated from the metamorphic reactions in carbonate rocks; H2 and He may derive from igneous rocks in the upper crust according to their distribution and possible genetic mechanism.Therefore, CO2, H2 and He are probably the important hydrogeochemical component to indicate the po-tential focal zone and monitor the earthquake activities.

关 键 词：氢 氦 地震 地下水 溶解 二氧化碳 

分 类 号：P315.2[天文地球—地震学]