基于环境同位素技术的张掖盆地地下水流动系统分析  

Groundwater flow system analysis of the Zhangye basin based on environmental isotope techniques

作　　者：王文祥[1] 安永会[1] 李文鹏[1] 邵新民[1] 吴玺[1] 龚磊[1] 张梦南[1] 王晓燕[1] 蔡月梅 

机构地区：[1]中国地质调查局水文地质环境地质调查中心,河北保定071051

出　　处：《水文地质工程地质》2016年第2期25-30,共6页Hydrogeology & Engineering Geology

基　　金：地质调查项目"黑河流域重点地区水文地质调查"(12120114018401)

摘　　要：研究张掖盆地的地下水流动系统,对于合理开发当地地下水资源,提高水文地质研究程度,具有重要意义。环境同位素技术已广泛应用于水文地质研究中,对于研究地下水补给来源、地下水循环等有重要帮助。2014年在张掖盆地开展了水文地质调查和研究,采取了大量不同位置、不同深度的环境同位素样品,结合前人在该地区的研究成果,进行了氘氧同位素分析,研究结果表明:(1)祁连山区水体和龙首山区水体的氘氧同位素值有明显差异,并导致下游地下水的氘氧同位素值表现出明显差异;(2)从张掖盆地地下水上游至下游,存在深部循环带,并根据同位素的分布划分了张掖盆地不同区域的地下水流动系统,得出了张掖盆地的地下水流动系统概念模型。Studies of groundwater flow systems are important to explore local groundwater resources and improve the degree of hydrogeological researches. Environmental isotope technology has widely been used in hydrogeology and can provid obvious help in the studies of groundwater recharge and circulation. Hydrogeology survey was carried out in the Zhangye basin in 2014 and a lot of water isotope samples was achieved.Combined with the research results of other researchers,the authors conducted an isotope analysis. The research results show that（ 1） the stable isotope values in the Qilian mountain and the Longshou mountain are very different,leading to very different isotope values in the downstream groundwater.（ 2） There are groundwater deep circulation zones from the upper stream to the downstream in the Zhangye basin. According to the isotope distribution,the authors divided the groundwater flow system in different areas and put forward a conceptual model for the groundwater flow system.

关 键 词：张掖盆地 水文地质 地下水流动系统 同位素 

分 类 号：P641.3[天文地球—地质矿产勘探]