辽宁省典型地区高氟地下水的分布特征及成因分析

A Research on the Formation and Distribution of Groundwater with High Fluoride Content in Liaoning Province

在前人研究的基础上,通过水文地质调查、综合物探法、水化学及水质检测方法,探测辽宁省典型地区水化学特征,分析了水化学特征与地下水氟离子的含量关系;不同地貌单元地下水氟离子含量分布不同;主要从高氟地下水形成的物质基础,水文地质环境对氟离子变化的制约,粘性土层是富集氟离子最好场所等方面分析辽宁高氟地下水的形成原因,通过研究了解到高氟地下水一般存在于潜水的上部及粘土层中,这一研究为今后寻找低氟水源提供前期有力资料奠定基础。

By taking hydrogeological survey, comprehensive geophysical prospecting and water quality testing, the study i-dentifies hydrochemical characteristics of groundwater in a region with typical geological properties in Liaoning province and an-alyzes the relationship between fluoride content and hydro-chemical characteristics. The result shows that fluoride content va-ries from regions in different landforms. As clay layer is a good place for fluoride gathering, the research on the formation of groundwater with high fluoride content is conducted from perspectives including the material basis and the influence of geolog-ical environment. The result indicates that groundwater with high fluoride content always can be found in the upper layer of phreatic water and clay layer. The study could be an effective reference for further exploration of groundwater with low fluoride content.