盐池东部白垩系地下水化学特征及演变  

The chemical characteristics and evolution of the groundwater Hydrochemical in the eastern Yanchi

作　　者：周文生 刘海燕 芮婷 ZHOU Wen-sheng;LIU Hai-yan;RUI Ting(Ningxia Nuclear Industry Geological Prospecting Institute,Yinchuan 750021,Ningxia,China;Ningxia Geological Survey Institute,Ningxia 750021,Yinchuan,China)

机构地区：[1]宁夏回族自治区核地质调查院,宁夏银川750021 [2]宁夏回族自治区地质调查院,宁夏银川750021

出　　处：《地下水》2022年第1期42-44,48,共4页Ground water

基　　金：中国地质调查局地质大调查:“鄂尔多斯盆地(宁夏)能源基地地下水勘查”(1212011121162)。

摘　　要：以鄂尔多斯白垩系盆地西缘盐池地区白垩系浅层地下水含水层为目的层,在综合分析研究区水文地质条件的基础上,通过野外调查、取样、试验分析,系统整理地下水水化学数据,对该区域白垩系地下水水化学特征进行了分析。结果表明,盐池白垩系地下水化学类型主要为SO_(4)^(2-)·Cl^(-)、SO_(4)^(2-)型,地下水溶解性总固体总体分布规律是分水岭东部溶解性总固体小于西部,北部溶解性总固体小于南部麻黄山。Taking the cretaceous shallow groundwater aquifer in the western margin of Yanchi of Ordos Cretaceous Artesian Basin as the target,on the basis of analysis of the hydrogeological conditions of the study area,by field investigating,sampling and experimental analyzing,based on the data of hydro chemical of groundwater,the hydro chemical characteristics of Cretaceous groundwater in this area were analyzed.The results showed that the chemical types of the Cretaceous groundwater in Yanchi are SO_(4)^(2-)·Cl^(-)and SO_(4)^(2-)mainly,and the total dissolved solids in the eastern part of the watershed are less than those in the western part,and the total dissolved solids in the northern part are less than those in the southern part.

关 键 词：地下水 化学特征 演变规律 白垩系 

分 类 号：P641.12[天文地球—地质矿产勘探]