%0 Journal Article %T 矿区砂岩含水层水岩作用及水化学特征研究——以青东煤矿为例
Study on Water-Rock Interaction and Hydrochemical Features of Sandstone Aquifer in Mining Area—Taking Qingdong Coal Mine as an Example %A 沈孝珂 %A 马杰 %A 王新军 %A 孟志明 %A 王新建 %A 王亮 %A 代涛 %J Geographical Science Research %P 304-311 %@ 2168-5770 %D 2024 %I Hans Publishing %R 10.12677/gser.2024.132029 %X 本文以青东煤矿砂岩含水层23组样品为研究对象，运用Piper三线图、离子浓度直方图、主成分分析、相关性分析等方法，对该含水层的水化学特征、水岩相互作用以及离子来源等水文地球化学特征进行研究。结果表明：常规离子含量排序为：

> Na K >

> Cl^？ > Ca² >

> Mg²，阴阳离子的优势离子分别是

和Na K；主成分表明主成分1中Ca²和Cl^？均有较强的正相关，Cl^？含量与岩盐矿物溶解有关，Ca²的含量较高说明阳离子交替吸附作用较为明显，主成分2中Ca²、Mg²荷载值较高，其次为

，说明其水化学作用主要为硫酸盐岩矿物溶解，主成分3中K Na、

有强正相关，与Cl^？有中相关，代表了硫酸岩矿物、岩盐等矿物的溶解；相关性分析表明，砂岩含水层中

对pH起主要影响作用，K Na和

、Ca²和Mg²之间的正相关性较强，主要源于硅酸盐矿物的风化和硫酸盐岩矿物的溶解，K Na和Cl^？呈中等正相关，说明这些元素可能来自于岩盐。
In this study, 23 sets of samples of sandstone aquifer in Qingdong Coal Mine were taken as the research object, and the hydro geochemical features such as hydrochemical features, water-rock interaction and ion source were studied by using Piper three-line diagram, ion content histogram, principal component analysis and correlation analysis. The results showed that the orders of ion contents were

> Na K >

> Cl^？ > Ca² >

> Mg², respectively, the dominant ions of anions and cations were

and Na K. The principal component indicated that Ca² and Cl^？ had a strong positive correlation in principal component 1, and the content of Cl^？ was related to the dissolution of rock salt minerals. The high content of Ca² suggested that the cation exchange was more obvious. The load values of Ca^{2
%K 砂岩含水层，水化学分析，主成分分析，相关性分析
Sandstone Aquifer
%K Hydrochemical Analysis
%K Principal Component Analysis
%K Correlation Analysis
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=85416}