摘要
笔者在进行崇礼山区１／２０万水文地质测绘工作基础上，通过研究地区地下水的地球化学规律性，并结合区域水文地质条件与地质发展历史，对地下水化学成分的形成机理以及岩石的溶滤阶段进行了初步的探讨，认为本区地下水属大气起源的溶滤──渗入成因水，溶滤作用为其化学成分形成的基本作用，阳离子吸附作用与混合作用在一定程度上也影响着地下水化学成分的形成；溶滤咋用发育不完全，岩石溶滤处于硫酸盐—碳酸盐过渡阶段。
Based on the work of hydrogeological survey in the Chongli montainous area (1:200000), the authors have prbliminarily carried out a discssion on the formatinnal mechanism of the chemical composition of groundwatre and the stage of lixiviation by studying the geochemical regularity of groundwater, the hydrogeologichl condition and the history of geological development. The study shows that the groundwater in this area belongs to atmogenic lixiviation-infiltration water, and lixiviation is the essential action of the formation of the chemical composition,but the exchange adsorption of anions and the mixing action are also responsible for it to some extent. The lixiviation is in sulfate-carbonate stage.
关键词
地下水
化学成分
溶滤作用
岩石
groundwater
chemical composition
lixiviation
Chongli
