摘要
氟是人体的必须元素之一,饮水中氟元素过量会导致地氟病。高氟地下水的形成机制一直是水文地球化学研究的一个热门话题。利用在张掖盆地开展1∶5万水文地质调查所获得的大量水位、水质资料,运用水化学和氘氧同位素方法,在较高精度水平上探讨了龙首山前高氟地下水的形成机制。研究结果表明,龙首山前地下水中的F-主要来源于龙首山含氟岩石,通过季节性洪水的方式补给到盆地的第四系含水层中,并与盆地上游来源的低氟地下水发生混合,使龙首山前地下水分为三个条带。
Fluorine is one of essential elements of the human body, but excessive F can be harmful to human body. The formation mechanism of high fluorine groundwater has been a hot topic of hydrogeochemical research. The authors analyzed numerous groundwater level and quality data from 1 ： 50,000 hydrogeological survey in Zhangye Basin. By using hydrogeochemical and oxygen deuterium isotope methods, the authors discussed the formation mechanism of high-fluorine groundwater in Longshoushan piedmont in a high accuracy level. The resuits show that high-fluorine groundwater mainly origins from Longshoushan mountain fluorine-bearing rock. The high-fluorine surface water in Longshoushan mountain recharge into Quaternary aquifer in Zhangye Basin through seasonal floods and mixes with low-fluorine groundwater from upstream. Different recharge sources divided groundwater into three strips in Longshoushan piedmont.
出处
《现代地质》
CAS
CSCD
北大核心
2017年第2期415-420,共6页
Geoscience
基金
中国地质调查局项目"黑河流域重点地区水文地质调查"([2015]04-03-04-003)
关键词
张掖盆地
水文地质调查
高氟地下水
形成机制
溶滤作用
Zhangye Basin
hydrogeological survey
high-fluoride groundwater
formation mechanism
leaching
