汶川8.0级地震氡震后效应机理讨论
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摘要
在汶川地震氡震后效应特征的分析研究的基础上,对氡震后效应变化规律及机理展开了初步的探讨。按水氡阶变上升速度与恢复时间的长短,近场水氡震后效应可分为短期恢复型与长期不恢复型,远场水氡震后效应可分为短期恢复型与长期不恢复型。针对氡震后效应的4种变化规律,提出了4种可能的机理:破裂混合机理、破裂射气增大机理、振动射气增大机理、裂隙开启-闭合机理。研究氡震后效应变化规律及其机理,是从另一角度探讨氡的来源、迁移、表现与应力-应变、含水层动力学特征之间的关系,为氡地震前兆机理的研究与前兆异常判定提供一定的理论依据。
The paper makes a research on the characteristic of post-effect of radon in the Wenchuan earthquake and the changing law and mechanism of the effect.According to the rising speed and recovery time,the post-seismic effect of water radon in near-field can be divided into short-term recovery type and the long-term non-recovery type.That in far-field can also be divided into these two types.Four mechanisms are proposed according to four changing laws of the postseismic effect of water radon:rupture mixing mechanism,rupture emanation mechanism,vibration emanation mechanism,and cracks opening-closing mechanism.The study of the changing law and mechanism of the post-earthquake effect of radon is a different approach for the relationship between the source,migration,performance of radon and stress-strain,aquifer dynamics,and provide some theoretical basis for the research on the mechanism of earthquake precursors of radon and the judgment of precursor anomalies of radon.
The paper makes a research on the characteristic of post-effect of radon in the Wenchuan earthquake and the changing law and mechanism of the effect.According to the rising speed and recovery time,the post-seismic effect of water radon in near-field can be divided into short-term recovery type and the long-term non-recovery type.That in far-field can also be divided into these two types.Four mechanisms are proposed according to four changing laws of the postseismic effect of water radon:rupture mixing mechanism,rupture emanation mechanism,vibration emanation mechanism,and cracks opening-closing mechanism.The study of the changing law and mechanism of the post-earthquake effect of radon is a different approach for the relationship between the source,migration,performance of radon and stress-strain,aquifer dynamics,and provide some theoretical basis for the research on the mechanism of earthquake precursors of radon and the judgment of precursor anomalies of radon.
引文
[1]王长岭等,1982,地下水含氡量观测与地震预报探索,国家地震局监测处与教育处编发。
安徽省地震局,2004,安徽省地震监测志,合肥:合肥地图出版社。
蔡祖煌、石慧,1980,震流体地质学概论,北京:地震出版社。
车用太、鱼金子、刘五洲,1997,水氡异常的水动力学机制,地震地质,19(4),353～357。
范树全、高清,1982,氡预报地震的实验研究,地震地质,4(1),45～56。
冯玮、王永才、邓属禹,1981,饱水岩石超声振氡实验研究,地震地质,3(2),3～9。
甘肃省地震局,2004,甘肃省地震监测志,兰州:兰州地图出版社。
蒋风亮、李桂如、王基华等,1989,地震地球化学,北京:地震出版社。
李宣瑚,1981,水氡异常的扩散收缩现象,地震,(5),41～43。
刘耀炜、任宏微,2009,汶川8.0级地震氡震后效应特征初步分析,地震,29(1),102～113。
罗光伟,1984,音频振动下花岗岩氡钍射气测定结果,地震,4(5),21～22。
四川省地震局,2004,四川省地震监测志,成都:成都地图出版社。
王吉易、张炜、刑玉安等,1996,水化地震短临前兆标志体系的研究,中国地震,12(3),316～324。
王永才、冯玮、侯彦珍,1986,低频振动作用下土壤气中氡浓度变化的初步实验研究,华北地震科学,4(4),17～22。
邢玉安、王吉易,2000,水氡动态图强震危险区预测的新方法,地震,20(4),1～6。
徐玉华,1980,滑坡活动与水氡变化,西北地震学报,2(1),87～90。
张炜、李宣瑚、王吉易,1988,水文地球化学预报地震的原理与方法,北京:地震出版杜。
张炜、刑玉安,1987,地下水中氡含量离散度变化与地震的短临前兆,地震学报,9(3),90～96。
Birchard G.F.,Libby W.F.,1978,Earthquake associated radon anomalies:possible mechanisms,Eostrans Agu,59(4),329.
Mogro-Campero A.,Flenscher R.L.,Likes R.S.,1980,Changes in subsurface radon concentration associated withearthquake,J Geophys Res,85(B6),3053～3078.
Wakita H.,Nakamura Y.,Notsu K.,et al,1980,Radon anomaly:a possible precursor of the1978Izu-Osbima-Kinkaiearthquake,Science,207(4433),882～883.
Scholz C.H.,Sykes L.S.,Aggarwal Y.P.,1978,Earthquakes Prediction:a physical basis,Science,181,810～830.
Cултанходжаев и др А Н,1981,Некоторые реэультатых режимных наблюдений эа вариациями ртутив п одземныхводах Ташкентского геологического долигона.Узбекский геологичекий журнал,(2),82～86.
安徽省地震局,2004,安徽省地震监测志,合肥:合肥地图出版社。
蔡祖煌、石慧,1980,震流体地质学概论,北京:地震出版社。
车用太、鱼金子、刘五洲,1997,水氡异常的水动力学机制,地震地质,19(4),353～357。
范树全、高清,1982,氡预报地震的实验研究,地震地质,4(1),45～56。
冯玮、王永才、邓属禹,1981,饱水岩石超声振氡实验研究,地震地质,3(2),3～9。
甘肃省地震局,2004,甘肃省地震监测志,兰州:兰州地图出版社。
蒋风亮、李桂如、王基华等,1989,地震地球化学,北京:地震出版社。
李宣瑚,1981,水氡异常的扩散收缩现象,地震,(5),41～43。
刘耀炜、任宏微,2009,汶川8.0级地震氡震后效应特征初步分析,地震,29(1),102～113。
罗光伟,1984,音频振动下花岗岩氡钍射气测定结果,地震,4(5),21～22。
四川省地震局,2004,四川省地震监测志,成都:成都地图出版社。
王吉易、张炜、刑玉安等,1996,水化地震短临前兆标志体系的研究,中国地震,12(3),316～324。
王永才、冯玮、侯彦珍,1986,低频振动作用下土壤气中氡浓度变化的初步实验研究,华北地震科学,4(4),17～22。
邢玉安、王吉易,2000,水氡动态图强震危险区预测的新方法,地震,20(4),1～6。
徐玉华,1980,滑坡活动与水氡变化,西北地震学报,2(1),87～90。
张炜、李宣瑚、王吉易,1988,水文地球化学预报地震的原理与方法,北京:地震出版杜。
张炜、刑玉安,1987,地下水中氡含量离散度变化与地震的短临前兆,地震学报,9(3),90～96。
Birchard G.F.,Libby W.F.,1978,Earthquake associated radon anomalies:possible mechanisms,Eostrans Agu,59(4),329.
Mogro-Campero A.,Flenscher R.L.,Likes R.S.,1980,Changes in subsurface radon concentration associated withearthquake,J Geophys Res,85(B6),3053～3078.
Wakita H.,Nakamura Y.,Notsu K.,et al,1980,Radon anomaly:a possible precursor of the1978Izu-Osbima-Kinkaiearthquake,Science,207(4433),882～883.
Scholz C.H.,Sykes L.S.,Aggarwal Y.P.,1978,Earthquakes Prediction:a physical basis,Science,181,810～830.
Cултанходжаев и др А Н,1981,Некоторые реэультатых режимных наблюдений эа вариациями ртутив п одземныхводах Ташкентского геологического долигона.Узбекский геологичекий журнал,(2),82～86.
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