氢氧、锶钙和锂硼同位素在高氟地下水研究中的应用  

Review on the application of H,O,Sr,Ca,Li and B isotopes in the research of high-fluoride groundwater

作　　者：张卓 柳富田 陈社明 ZHANG Zhuo;LIU Futian;CHEN Sheming(Tianjin Center,China Geological Survey(North China Center for Geoscience Innovation),Tianjin 300170,China;Tianjin Key Laboratory of Coast Geological Processes and Environmental Safety,Tianjin 300170,China)

机构地区：[1]中国地质调查局天津地质调查中心(华北地质科技创新中心),天津300170 [2]天津市海岸带地质过程与环境安全重点实验室,天津300170

出　　处：《华北地质》2023年第3期49-56,共8页North China Geology

基　　金：国家自然基金委青年基金项目“基于多种同位素分析的滨海平原区地下水氟富集机理研究(42102298)”;中国地质调查局项目“海河流域水文地质与水资源调查监测(DD20230426)”;“西北内陆盆地典型地区水文地质与水资源调查监测(DD20230431)”。

摘　　要：本文旨在探讨利用稳定同位素手段揭示高氟地下水的起源、循环和演化过程,通过收集和整理已有的相关研究成果,对氢氧同位素、锶钙同位素和锂硼同位素在高氟地下水研究中的应用进行综述。研究发现,地下水中的δ^(2)H和δ^(18)O值可以确定水的来源和混合过程,并进而识别高氟地下水的潜在来源。锶钙同位素在高氟地下水研究中备受关注,通过获取地下水中的^(87)Sr/^(86)Sr比值和δ^(44/40)Ca,可以揭示矿物风化溶解、阳离子交换、次生矿物相沉淀等水文地球化学过程,对于理解高氟地下水的形成机制和演化过程至关重要。另外,锂硼同位素也是研究高氟地下水的重要工具之一,通过测量δ^(7)Li和δ^(11)B值,可以判断地热流体对深层高氟地下水的影响。综上所述,稳定同位素在高氟地下水研究中具有广泛应用前景。通过测量氢氧同位素、锶钙同位素和锂硼同位素,我们可以深入了解高氟地下水的起源、循环和演化过程,从而为高氟地下水治理和水资源管理提供科学依据,为制定相应的防治措施和保障人类健康提供重要支持。This article aims to explore the use of stable isotopic techniques in elucidating the origin,cycling and evolution processes of high fluoride groundwater.By collecting and synthesizing relevant research findings,a comprehensive review is conducted concerning the utilization of hydrogen and oxygen isotopes,strontiumcalcium isotopes,and lithium-boron isotopes in the investigation of high F-groundwater within subterranean environments.The research reveals that δ^(2)H and δ^(18)O values in groundwater can be utilized to identify the sources and mixing processes of water,thereby identifying potential sources of high fluoride groundwater.Of particular interest in the investigation of high fluoride groundwater is the use of strontium-calcium isotopes.By determining the 87Sr/86Sr ratio and δ^(44/40)Ca in groundwater,hydrogeochemical processes such as mineral weathering dissolution,cation exchange,and secondary mineral precipitation can be elucidated,crucial for understanding the formation and evolution mechanisms of high fluoride groundwater.Additionally,lithium-boron isotopes serve as important tools in the study of high fluoride groundwater.Measurements of δ^(7)Li and δ^(11)B allow for the assessment of the influence of geothermal fluids on deep-seated high fluoride groundwater.In conclusion,stable isotopes hold immense potential in high fluoride groundwater research.By measuring deuterium-oxygen isotopes,strontium-calcium isotopes,and lithium-boron isotopes,we can gain profound insights into the origin,cycling,and evolution processes of high fluoride groundwater,thus providing a scientific basis for its management and water resource conservation.This research also offers crucial support for the development of appropriate prevention and control measures,ultimately safeguarding human health.

关 键 词：高氟地下水 水文地球化学 氢氧同位素 锶钙同位素 锂硼同位素 

分 类 号：P641.8[天文地球—地质矿产勘探] TU991.2[天文地球—地质学] R123[建筑科学—市政工程]