Articles | Volume 18, issue 12
https://doi.org/10.5194/hess-18-4951-2014
https://doi.org/10.5194/hess-18-4951-2014
Research article
 | 
09 Dec 2014
Research article |  | 09 Dec 2014

Using 14C and 3H to understand groundwater flow and recharge in an aquifer window

A. P. Atkinson, I. Cartwright, B. S. Gilfedder, D. I. Cendón, N. P. Unland, and H. Hofmann

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Subject: Groundwater hydrology | Techniques and Approaches: Theory development
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Cited articles

Aravena, R., Leonard, I., Wassenaar, L., and Plummer, N.: Estimating 14C Groundwater Ages in a Methanogenic Aquifer. Water Resour. Res., 9, 2307–2317, https://doi.org/10.1029/95WR01271, 1995.
Atkinson, A. P., Cartwright, I., Gilfedder, B. S., Hofmann, H., Unland, N. P., Cendón, D. I., and Chisari, R.: A multi-tracer approach to quantifying groundwater inflows to an upland river; assessing the influence of variable groundwater chemistry, Hydrol. Process., https://doi.org/10.1002/hyp.10122, in press, 2013.
Bennetts, D. A., Webb, J. A., Stone, D. J. M., and Hill, D. M.: Understanding the salinisation process for groundwater in an area of south-eastern Australia, using hydrochemical and isotopic evidence, J. Hydrol., 323, 178–192, https://doi.org/10.1016/j.jhydrol.2005.08.023, 2006.
Bertrand, G., Celle-Jeanton, H., Loock, S., Huneau, F., and Lavastre, V.: Contribution of δ13CCITD and PCO2 eq measurements to the understanding of groundwater mineralization and carbon patterns in volcanic aquifers. Application to Argnat Basin (Massif Central), Aq. Geochem., 19, 147–171, 2013.
Bethke, C. M. and Johnson, T. M.: Groundwater Age and Groundwater Age Dating, Annu. Rev. Earth Planet Sc. Lett., 36, 121–152, https://doi.org/0.1146/annurev.earth.36.031207.124210, 2008.
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Short summary
This research article uses of radiogenic isotopes, stable isotopes and groundwater geochemistry to study groundwater age and recharge processes in the Gellibrand Valley, a relatively unstudied catchment and potential groundwater resource. The valley is found to contain both "old", regionally recharged groundwater (300-10,000 years) in the near-river environment, and modern groundwater (0-100 years old) further back on the floodplain. There is no recharge of the groundwater by high river flows.