阜东矿区水文地球化学特征及其形成作用
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摘要
以淮南煤田阜东矿区充水含水层为研究对象,采用统计分析、离子组合比分析及主成分分析法等对"底含、二叠、太灰、奥灰"等4个含水层共75个水样的水化学数据进行分析,结果表明:该矿区充水含水层阳离子以Na~+为主,阴离子以Cl~-为主,太灰中HCO_3~-含量较高,奥灰中SO_4~(2-)含量较高,水质类型以Cl-Na型、HCO_3-Na型、Cl·HCO_3-Na型为主;含水层中主要发生盐岩溶解与离子交换作用,其交换强度为二叠系砂岩含水层大于太灰与奥灰含水层,而"底含"最弱。
Taken water-bearing aquifers as the research object in Fudong mine in Huainan coalfield,by some methods such as statistical analysis, ion combination ratio analysis and principal component analysis, hydrogeochemical compositions of 75 samples from four aquifers involved in "Cenozoic bottom,Permian sand, Taiyuan formation limestone, Ordovician carbonate ", are analyzed, and the results show that the cation is dominated by Na~+, and the anion is dominated by Cl~-; the highest content of HCO_3~-is in Taiyuan aquifer; SO_4~(2-)in Ordovician carbonate; and the hydrogeochemical types can be classified into Cl-Na、HCO_3-Na、Cl·HCO_3-Na. The action of dissolution and ion exchange mainly occurs in aquifers, which intensity is that the Permian′ s is greater than that of the Taiyuan and Ordovician carbonate aquifer, and the Cenozoic bottom is the weakest.
Taken water-bearing aquifers as the research object in Fudong mine in Huainan coalfield,by some methods such as statistical analysis, ion combination ratio analysis and principal component analysis, hydrogeochemical compositions of 75 samples from four aquifers involved in "Cenozoic bottom,Permian sand, Taiyuan formation limestone, Ordovician carbonate ", are analyzed, and the results show that the cation is dominated by Na~+, and the anion is dominated by Cl~-; the highest content of HCO_3~-is in Taiyuan aquifer; SO_4~(2-)in Ordovician carbonate; and the hydrogeochemical types can be classified into Cl-Na、HCO_3-Na、Cl·HCO_3-Na. The action of dissolution and ion exchange mainly occurs in aquifers, which intensity is that the Permian′ s is greater than that of the Taiyuan and Ordovician carbonate aquifer, and the Cenozoic bottom is the weakest.
引文
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[3]洪涛,谢运球,喻崎雯,等.乌蒙山重点地区地下水水化学特征及成因分析[J].地球与环境,2016,44(1):11-18.
[4]李华,文章,谢先军,等.贵阳市三桥地区岩溶地下水水化学特征及其演化规律[J].地球科学,2017,42(5):804-812.
[5]邵杰,李瑛,侯光才,等.新疆伊犁河谷地下水化学特征及其形成作用[J].干旱区资源与环境,2017,31(4):99-105.
[6]储婷婷.潘谢矿区地下水常规水化学分析及判别模型的建立[D].合肥:中国科学技术大学,2014.
[7]何晓文,蒋蓉,许光泉,等.淮南矿区浅层地下水水质分析与评价[J].水文,2010,30(4):18-22.
[8]刘天骄,张春雷,钱家忠,等.淮南煤田老矿区地下水微量元素多元统计研究[J].合肥工业大学学报:自然科学版,2011,34(1):119-122.
[9]栾风娇,周金龙,贾瑞亮,等.新疆巴里坤一伊吾盆地地下水水化学特征及成因[J].环境化学,2017,36(2):380-389.