泰莱盆地地下水化学特征分类及成因分析  

Classification and Cause Analysis of Groundwater Chemical Characteristics in Tailai Basin

作　　者：田明刚[1] 徐建[1] 赵耘[1] 郑梦琪[1] 徐秋林 TIAN Ming-gang;XU Jian;ZHAO Yun;ZHENG Meng-qi;XU Qiu-lin(Shandong Zhengyuan Geological Exploration Institute,General Administration of Metallurgical Geology of China,Jinan 250000,China;Shandong Zhengyuan Construction Engineering Co.,Ltd.,Jinan 250000,China)

机构地区：[1]中国冶金地质总局山东正元地质勘查院,济南250000 [2]山东正元建设工程有限责任公司,济南250000

出　　处：《节水灌溉》2021年第8期78-82,共5页Water Saving Irrigation

摘　　要：泰莱盆地地下水类型丰富,水化学特征复杂,传统的水化学方法不适合大量数据的客观归类研究,复杂特征的地下水成因缺少全面认知。利用聚类分析对大量枯水期地下水数据分成ABC三大组,再细分成10小组,并结合含水层岩性分析水化学特征。利用Gibbs图分析得出三组地下水主要受岩石控制,同时也受不同程度的蒸发作用。利用离子比值端元图得出ABC三组分别以溶滤硅酸岩、硅酸盐及碳酸盐、硅酸盐及蒸发岩控制为主。最后通过质量平衡模拟10小组类型水中多种矿物质成分的溶解量,发现人类活动对地下水Cl-含量影响较大。研究加深了研究区地下水复杂水化学特征分析及成因的认识。The Taylor Basin has rich types of groundwater and complex hydro-chemical characteristics.Traditional hydro-chemical methods are not suitable for the objective classification of large amounts of data.The formation of complex characteristics of groundwater lacks a comprehensive understanding.This paper used cluster analysis to divide a large amount of groundwater data during low-water periods into three major groups,ABC,and then subdivided into 10 groups,combined with the lithology of the aquifer to analyze the water chemical characteristics.Through using the Gibbs diagram analysis,it was concluded that the three groups of groundwater were mainly controlled by rocks,but also subjected to different degrees of evaporation.Through using the ion ratio end-member diagram,it was concluded that the three groups of ABC were mainly controlled by leaching silicate,silicate and carbonate,silicate and evaporite.Finally,the mass balance was used to simulate the dissolution of various mineral components in 10 groups of water,and it was found that human activities had a greater impact on the Cl-content of groundwater.This study deepens the understanding of the complex hydro-chemical characteristics and causes of groundwater in the study area.

关 键 词：泰莱盆地 水化学类型 聚类分析 水岩作用 质量平衡 

分 类 号：S273.4[农业科学—农业水土工程] P641[农业科学—农业工程]