| 锦州沈家台水氡高值波动异常识别 |
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| 引用本文： | 王喜龙,王海燕,付聪,王松阳,杨振鹏.锦州沈家台水氡高值波动异常识别[J].地震,2019,39(4):158-171. |
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| 作者姓名： | 王喜龙 王海燕 付聪 王松阳 杨振鹏 |
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| 作者单位： | 辽宁省地震局,辽宁沈阳,110034 |
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| 基金项目： | 地震科技星火计划项目(XH19007Y); 地震预测研究所基本科研业务专项(2018IEF010204); 中国地震局预报专项(YBZX-DQHX2018-04); 辽宁省地震局青年项目(LZ201801); 国家自然科学基金(U1602233) |
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| 摘 要： | 讨论了锦州沈家台水氡活度浓度出现的高幅度波动异常变化与地震活动的关系。 沈家台水氡测项自2004年开始观测以来, 数据变化稳定, 氡活度浓度一般在4~5 Bq/L范围波动, 且具有很好的年周期变化规律。 但在2016年11月20日开始出现高幅度异常变化, 较正常波动范围平均高出约5 Bq/L。 针对此次出现的异常变化, 在排除外界干扰的基础上, 应用临界慢化方法进行高频异常识别分析。 结果表明, 提取的水氡高频信息成分和方差均存在异常变化, 且高频异常与原始数据异常出现时间具有同步性变化特征。 综合测点映震效能、 区域地震活动性、 井水地球化学分析及水氡异常形成机理等分析结果, 认为这次沈家台水氡出现的异常变化与辽西及环渤海地区应力场调整关系密切, 该区应力增强及井水文地质条件的制约是造成水氡出现高值波动的主要原因。
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| 关 键 词： | 高值波动 水氡观测 异常分析 沈家台 锦州 |
| 收稿时间： | 2018-04-27 |
Idendification of High Value Fluctuation Anomalies in Water Radon in Jinzhou Shenjia Site,Liaoning Province |
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| WANG Xi-long,WANG Hai-yan,FU Cong,Wang Song-yang,YANG Zhen-peng.Idendification of High Value Fluctuation Anomalies in Water Radon in Jinzhou Shenjia Site,Liaoning Province[J].Earthquake,2019,39(4):158-171. |
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| Authors: | WANG Xi-long WANG Hai-yan FU Cong Wang Song-yang YANG Zhen-peng |
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| Institution: | Earthquake Administration of Liaoning Province, Shenyang 110034, China |
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| Abstract: | In this paper, we discussed the relationship between the concentration of water radon in Shenjiatai of Jinzhou anomalous change with high value variation (the max amplitude was about 5 Bq/L) since November 20, 2016 and seismic activity in the western of Liaoning Province. Since the concentration of water radon of Shenjiatai has been observed from 2004, the observed data always keep in the range of 4 Bq/L to 5 Bq/L, and with good law of annual variation. For the abnormal variation of this time, on the basis of the exclusion of interference, we used the principle of critical slowing down in this paper to calculate the correlation coefficient and variance. The results show that both the high frequency information and variance are all have abnormal change, and the appearing time of high frequency anomalous and low frequency anomalous has synchronous change characteristics. Connecting the analysis results of the reflecting earthquake ability, seismic activities analysis, geochemical analysis and analysis on the mechanism of abnormal formation for water radon. We found that the high value fluctuation anomaly for water radon for this time in Shenjiatai has a close relationship with the adjustment of regional stress field in the western of Liaoning province, which the stress enhancement in this area and the constraint of hydrogeological conditions for the well of Shenjiatai are the main reason to cause the high value fluctuation of radon in water. |
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| Keywords: | High value fluctuation Observation of radon Anomaly analysis Shenjiatai Jinzhou |
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