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The Origin of Major Ions of Groundwater in a Loess Aquifer

文献类型：期刊论文

作者Huang, Tianming1,3; Ma, Baoqiang2
刊名WATER
出版日期2019-12-01
卷号11期号:12页码:14
关键词groundwater strontium isotopes geochemical methods acetic acid Sr-87 Sr-86
DOI10.3390/w11122464
英文摘要When groundwater represents most of the world's reserves of unfrozen freshwaters, water quality is commonly a limiting factor in quantifying usable fresh groundwater storage, especially in arid and semi-arid areas. Tracing the origin of major ions is important to the understanding of hydrochemical evolution and water-rock interaction. Strontium (Sr) and calcium (Ca) are geochemically similar in terms of ionic radius and ionic charge and can substitute for each other in mineral lattices such as in carbonates and silicates. This allows the use of Sr as a proxy for Ca during water-rock interaction. Geochemical mass balance and carbon and strontium isotope techniques were employed to study the origin of each major ion (such as Na, Ca, Mg, Cl, and SO4) in a loess aquifer (there is 10% to 20% of carbonate in the loess). Geochemical mass balance between atmospheric deposition and groundwater shows that the Cl (average concentration of 5.5 mg/L) and SO4 (average concentration of 6.8 mg/L) in groundwater originated from atmospheric deposition. The dissolution of loess using acetic acid was used to analyze the Sr-87/Sr-86 ratio of carbonate (mainly deposited in continental environments). Groundwater Sr-87/Sr-86 ratios (0.710677 to 0.712319) are consistent with Sr-87/Sr-86 ratios in carbonate (0.710329 to 0.711085) but are significantly lower than the whole-rock (0.715136 to 0.717155) and residue (0.719091 to 0.720438), suggesting that Ca and Mg mainly originated from the dissolution of carbonate in the loess aquifer. However, Na originated from the dissolution of albite, suggesting saturation controls the ability of dissolution. There are cation exchanges between Ca + Mg and Na, resulting in Na concentration increases and Ca + Mg concentration decreases in groundwater. This study is important to the understand of the origin of the major ions in groundwater and the geochemical processes in silicate-carbonate aquifers.
WOS关键词CARBONATE ; RECHARGE ; ISOTOPES ; DISSOLUTION ; TRACER ; CHINA ; RAIN ; ND
资助项目National Natural Science Foundation of China[41672254] ; National Natural Science Foundation of China[41877207] ; Youth Innovation Promotion Association CAS[2018087]
WOS研究方向Water Resources
语种英语
WOS记录号WOS:000507378600037
出版者MDPI
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/95909]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Huang, Tianming
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.China Univ Min & Technol, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Tianming,Ma, Baoqiang. The Origin of Major Ions of Groundwater in a Loess Aquifer[J]. WATER,2019,11(12):14.
APA Huang, Tianming,&Ma, Baoqiang.(2019).The Origin of Major Ions of Groundwater in a Loess Aquifer.WATER,11(12),14.
MLA Huang, Tianming,et al."The Origin of Major Ions of Groundwater in a Loess Aquifer".WATER 11.12(2019):14.

入库方式： OAI收割

来源：地质与地球物理研究所

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