³⁶Cl in modern groundwater dated by a multi-tracer approach (³H/³He, SF₆, CFC-12 and ⁸⁵Kr): a case study in quaternary sand aquifers in the Odens

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• 作者：Alvarado ; J.A. Corcho ; Purtschert ; R. ; Hinsby ; K. ; Troldborg ; L. ; Hofer ; M. ; Kipfer ; R. ; Aeschbach-Hertig ; W. ; et. al.
• 刊名：Applied Geochemistry
• 出版年：2005
• 期刊代码：5_08832927
• 类别：ce
• 出版时间：March, 2005
• 卷：20
• 期：3
• 页码：599-609
• 文件大小：494 K

摘要

³⁶Cl produced by thermonuclear bomb testing has been proposed as an additional tool to date or at least to identify recent groundwater components. In order to investigate the behaviour of ³⁶Cl in shallow groundwater a multi-tracer approach (³H/³He, SF₆, CFC-12 and ⁸⁵Kr) was used to characterise and date the groundwater of a quaternary sands aquifer which is located on the Island of Funen near the city of Odense, Denmark. Recharge to the semi-confined shallow aquifer occurs through permeable sand windows and fractured tills at the surface. Locally, however, mixing with older pre-bomb water from the underlying limestone aquifer may occur. The integrated analyses of the available tracer data allowed a well constrained age structure determination of the investigated water system.