鲁西南浅层高氟地下水成因的水文地球化学研究

鲁西南京杭运河以西的大部分地区浅层地下水氟含量普遍偏高，最高达6．07mg/L，是地方性氟中毒症高发区。根据巨野煤田勘探期间在巨野、郓城、嘉祥地进行的浅层地下水（埋深＜20m）水文地球化学调查资料，结合本区地形、地貌、气候、岩性等因素，对浅层地下水的水文地球化学特征及高氟地下水的成因机理进行了研究，指出本区地下水氟的富集主要与pH值、矿化度、特征及高氟地下水的成因机理进行了研究，指出本区地下水氟的富集主要与pH值、矿化度、HCO3^-、Ca^2 、Mg^2 含量有关，计算了F、Ca、Mg3种元素的组分浓度以及几种固相沉积物的饱和指数，并提出了相应的预防和治理措施。

Study on the hydrogeochemistry genesis of high fluorine shallow- bed groundwater in southwestern Shandong Province

In most region of southwest of Shandong province,the content of fluorine in shallow- bed groundwater is high.The maximum content is 6 .0 7mg/ L .According to data derived from the hydrogeochemical survey of the shallow- bed groundwater in Juye,Yuncheng,Jiaxiang during the exploration of Juye coalfield,taking into accountthe factors of topography,geomorphology, climate,lithology,the hydrogeochemical characteristic and the mechanism of genesis of the high fluorine shallow- bed groundwater was studied.It was pointed out that the enrichment of fluorine in shallow- bed groundwater have a close relation with p H,salinity and concentration of HCO3- ,Ca2 + ,Mg2 + ,and the com ponent concentration of Ca,Mg,F and the saturation index of som e solid phases,such as Calcite,Aragonite,Anhydrite,Fluorite.The precaution and harnessing measure were put forward.