大同盆地高氟地下水水化学特征及其成因Hydrochemistry and Occurrence of High Fluoride Groundwater in Datong Basin
秦兵;李俊霞;
摘要(Abstract):
为查明控制大同盆地高氟地下水形成的主要地球化学过程,对大同盆地地下水高氟区31个水样进行了水化学特征及因子分析研究。结果表明,研究区浅层和深层地下水中均检测出氟,且氟含量高,最大ρ(F)达10.37mg/L。该区高氟地下水以Na-HCO3型水为主,具有典型的富Na特征。PHREEQC饱和指数计算结果表明,地下水中萤石为不饱和状态,地下水中ρ(F)主要受到萤石溶解影响。因子分析研究表明,水-岩相互作用、碳酸盐矿物溶解沉淀及Na-Ca离子交换作用是控制大同盆地地下水氟富集的主要水化学过程。
关键词(KeyWords): 氟;地下水;因子分析;水文地球化学过程;大同盆地
基金项目(Foundation):
作者(Author): 秦兵;李俊霞;
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参考文献(References):
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