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山西省4口井(泉)水化学特征与水氡映震效能研究
穆慧敏1,2, 黄春玲3,2, 常姣3,2, 杨静4,2, 李民3,2, 姚林鹏3,2, 张文男3,2
1.山西省地震局, 太原 030025;2.太原大陆裂谷动力学国家野外科学观测研究站, 太原 030025;3.山西省地震局夏县中心地震台, 山西夏县 044400;4.山西省地震局临汾中心地震台, 山西临汾 041000
摘要:
对山西4口水化学观测井(泉)及周边地表水进行水化学和氢氧同位素分析,利用Piper图、durov图、Na-K-Mg三角图等方法研究其水化学特征及成因,得出井(泉)水岩平衡程度、热储温度、地下水循环深度及地下水补给来源详情;分析了井(泉)水氡测项映震特征,应用水氡映震效果与水岩平衡程度、地下水循环深度表现出的特征,评价了地震监测效能。评价结果显示夏县井、奇村井优于临猗井,适于开展地震水化学观测;定襄泉应用该水化学方法评价尚存不足之处,需要探索适用于该类观测泉点的物理与化学相结合的评价方法。
关键词:  井(泉)  水化学  水氡  地震监测
DOI:
分类号:P315
基金项目:中国地震局“监测、预报、科研”三结合项目“山西流体观测井水化学特征与监测效能评价指标研究”(3JH-201902011)和山西省地震局科研项目(SBK-1830)共同资助
Study on the Relationship between Hydrochemical Characteristics and Predictive Effect of Radon in 4 Wells (springs) in Shanxi Province
Mu Huimin1,2, Huang Chunling3,2, Chang Jiao3,2, Yang Jing4,2, Li Min3,2, Yao Linpeng3,2, Zhang Wennan3,2
1.Shanxi Earthquake Agency, Taiyuan 030021, China;2.State Key Observatory of Shanxi Rift System, Taiyuan 030025, China;3.Xiaxian Central Seismic Station, Shanxi Earthquake Agency, Xiaxian 044400, Shanxi, China;4.Linfen Central Seismic Station, Shanxi Earthquake Agency, Linfen 044100, Shanxi, China
Abstract:
After the analysis of the hydrochemical,hydrogen isotope and oxygen isotope in 4 wells (springs) and surface water of its surrounding areas in Shanxi Province by the Piper diagram,durov diagram,and Na-K-Mg triangulation,the equilibrium degree of water rock,the temperature of heat storage,the depth of groundwater circulation and the source of groundwater recharge are observed. The seismic reflection characteristics of the well (spring) water radon measurement are analyzed,and the characteristics of the earthquake monitoring effect are evaluated by using the characteristics of the water radon reflection effect and the water-rock balance and the groundwater circulation depth. The result presents that the Xiaxian well and Qicun well are fitter than the Linyi well to be used to observe hydrochemical characteristics,and Dingxiang well in hydrochemical evaluation is still insufficient,and needs new method.
Key words:  Wells(springs)  Hydrochemical  Water radon  Seismic observation