怀4井数字化气氡特征分析
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摘要
本文介绍了怀4井的地质构造情况和数字化改造情况;分析了气氡与气压的关系:气压由大变小时,气氡值升高,气压由小变大时,气氡表现为下降,得出了气氡、气压的相关系数-0.264;研究了气氡在巴林—阿鲁特右旗5.9级地震前的异常情况:气氡大幅波动,异常持续时间65天,最大异常幅度-27.1%,异常结束12天后发震;最后对怀4井气氡、水氡进行了对比分析:水氡低,气氡也低,水氡高时,气氡没有出现高值,并分析了出现这种状况的原因。
This paper first introduces the situation of the geological structure and digitized reconstruction in Huailai No.4 well.And then analyzes the relation between air radon and the atmospheric pressure.When the atmospheric pressure changes from high to low,the value of air radon rises;when the atmospheric pressure changes from low to high,the air radon drops.The dependence number between air radon and atmospheric pressure is gotten:-0.264.The precursor anomaly of the air radon in Huailai No.4 well before the 5.9 magnitude earthquake in Alute is studied: the air radon fluctuated by a large margin,the anomaly lasted for 65 days,the largest margin was – 27.1%,the earthquake happened 12 days after the anomaly ended.At last the authors compare the air radon with the water radon in Huailai No.4 well: when the water radon is low,the air radon is low too,but when the water radon is high,the air radon does not show high.The reasons for this phenomenon are analyzed.
This paper first introduces the situation of the geological structure and digitized reconstruction in Huailai No.4 well.And then analyzes the relation between air radon and the atmospheric pressure.When the atmospheric pressure changes from high to low,the value of air radon rises;when the atmospheric pressure changes from low to high,the air radon drops.The dependence number between air radon and atmospheric pressure is gotten:-0.264.The precursor anomaly of the air radon in Huailai No.4 well before the 5.9 magnitude earthquake in Alute is studied: the air radon fluctuated by a large margin,the anomaly lasted for 65 days,the largest margin was – 27.1%,the earthquake happened 12 days after the anomaly ended.At last the authors compare the air radon with the water radon in Huailai No.4 well: when the water radon is low,the air radon is low too,but when the water radon is high,the air radon does not show high.The reasons for this phenomenon are analyzed.
引文
[1]张凤秋,宋晓冰,李海孝,等.怀4井数字化水位观测资料初步分析[J].华北地震科学,2004,22(2):36–39
[2]王基华,林元武,高松升,等.怀来断层气CO2监测张北—尚义地震的短临预报[J].地震地质,20(2):113–116.
[3]国家地震局科技监测司.地震地下流体观测技术[M].北京:地震出版社,1995.15–23
[4]张炜,张新基.地下水中逸出氡和溶解氡微动态特征的对比研究[J].中国地震,1994,10(2):123–128
[5]张新基,张炜.地下水逸出氡和溶解氡观测系统的合理设计[J].地震,1993,13(4):46–51
[2]王基华,林元武,高松升,等.怀来断层气CO2监测张北—尚义地震的短临预报[J].地震地质,20(2):113–116.
[3]国家地震局科技监测司.地震地下流体观测技术[M].北京:地震出版社,1995.15–23
[4]张炜,张新基.地下水中逸出氡和溶解氡微动态特征的对比研究[J].中国地震,1994,10(2):123–128
[5]张新基,张炜.地下水逸出氡和溶解氡观测系统的合理设计[J].地震,1993,13(4):46–51
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