聊古─井水溶气体的震前异常特征
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摘要
本文对聊古一井水溶气体在１９８３年菏泽５．９级地震、１９９１年大同５．８级地震和１９９２年南黄海５．３级地震前的异常特征进行了分析总结，并结合地震场、源兆进行了初步探讨。认为聊古一井水溶气体的某些组分（如汞、氦气、二氧化碳、气体总量）具有良好的映震能力；氮氦比有利于突出地震异常信息，是提取震前短临异常简单可行的方法；聊古一井水溶气体的震前异常信息具有场兆和源兆的双重特征，来自源的地震异常信息具有良好的同步性，来自场的地震异常信息具有复杂性。
Anomaly features of gases in ground water in well Liaogu - 1 are analysed and summarized before Heze M = 5.9 earthquakee in 1983, Datong M = 5 .8 in 1991 and M = 5.3 in South Yellow Sea in 1992. Seismic precursors from seismic source and tectonic field are also discussed in the paper.The results reveal that some components (such as Hg, He, Co2 and total gases in ground water)show good ability of relating to ealthquakes and that the ratio of nitrogen to helium is a simple and feasible method to outstand seismic anomaly. Seismic anomalies before earthquakes in well Liaogu 1 possess features both from seismic source and tectonic field. Precursors from source show good synchronism while the ones from tectonic field indicate complexity.
Anomaly features of gases in ground water in well Liaogu - 1 are analysed and summarized before Heze M = 5.9 earthquakee in 1983, Datong M = 5 .8 in 1991 and M = 5.3 in South Yellow Sea in 1992. Seismic precursors from seismic source and tectonic field are also discussed in the paper.The results reveal that some components (such as Hg, He, Co2 and total gases in ground water)show good ability of relating to ealthquakes and that the ratio of nitrogen to helium is a simple and feasible method to outstand seismic anomaly. Seismic anomalies before earthquakes in well Liaogu 1 possess features both from seismic source and tectonic field. Precursors from source show good synchronism while the ones from tectonic field indicate complexity.
引文
［1］鲍鸿儒，天津深层水中气体总量和二氧化碳预报地震效能评价，地震监测与预报方法清理成果汇编地下水分册，地震出版社，1988。［2］张炜、阎立璋、申春生、魏家珍，水文地球化学地震前兆观测与新灵敏组分探索，地震，No．5，1987。［3］何跟巧、常秋君、郭玉英，地下水气体预报地震效能评价，地震监测与预报方法清理成果汇编地下水分册，地震出版社，1988。
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