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Bridging the 39Ar–14C Groundwater Dating Gap: A Dual-Permeability Transport Perspective Based on Numerical Modeling and Field Data - Dataset
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| Type: | Resource | |
| Storage: | The size of this resource is 3.9 MB | |
| Created: | Jul 23, 2025 at 4:14 p.m. (UTC) | |
| Last updated: | Jul 28, 2025 at 2:43 p.m. (UTC) | |
| Published date: | Jul 28, 2025 at 2:43 p.m. (UTC) | |
| DOI: | 10.4211/hs.06551fecfa204d299d4197a9ea1bfcb1 | |
| Citation: | See how to cite this resource |
| Sharing Status: | Published |
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| Views: | 34 |
| Downloads: | 0 |
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Abstract
This dataset supports the study titled ''Bridging the 39Ar–14C Groundwater Dating Gap: A Dual-Permeability Transport Perspective Based on Numerical Modeling and Field Data'' and contains the HydroGeoSphere (HGS) input files used to simulate reactive tracer transport in a reference dual-permeability groundwater model. The model was developed to investigate mechanisms driving discrepancies between apparent groundwater ages derived from Argon-39 and Carbon-14 tracers—particularly in systems where diffusive exchange and in situ underground production significantly bias the apparent tracer ages. The domain consists of a vertical fracture embedded in a low-permeability porous matrix, explicitly representing physical processes such as advection in the fracture, diffusion into and from the matrix, longitudinal dispersion, and depth-dependent production of 39Ar. Boundary and initial conditions were configured to simulate long-term transient flow over 20,000 years, allowing tracer activity to equilibrate under realistic hydrogeological conditions. This reference model forms the basis for a broader sensitivity analysis assessing the impact of fracture aperture, porosity, diffusion coefficients, and dispersivity. The dataset supports reproducibility of key numerical results and provides a framework for future groundwater age-dating studies using HGS in complex fractured media.
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Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
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| Swiss National Science Foundation | 172550/214048 | |
| Innovation Fund Denmark | 8055-00073B | |
| Horizon 2020 Research and Innovation Program | 731166 |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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