Groundwater ages in fractured rock aquifers

Cook, Peter G.; Love, Andrew J.; Robinson, Neville I.; Simmons, Craig T.

doi:10.1016/j.jhydrol.2004.11.005

Cited by 111 publications

(97 citation statements)

References 25 publications

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“…In fractured aquifers, time scales are variable and can vary over centuries (Cook, 2003) while soil systems respond much more quickly. There are numerous models describing catchment flow, but few of them provide reliable information on the actual flow paths.…”

Section: Catchment Processes and Flow Pathsmentioning

confidence: 99%

At what scales do climate variability and land cover change impact on flooding and low flows?

Blöschl

Ardoin‐Bardin

Bonell

et al. 2007

Hydrological Processes

340

255

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Section: Catchment Processes and Flow Pathsmentioning

confidence: 99%

At what scales do climate variability and land cover change impact on flooding and low flows?

Blöschl

Ardoin‐Bardin

Bonell

et al. 2007

Hydrological Processes

340

255

View full text Add to dashboard Cite

“…The theoretical interpretation of the transport of the chemical solutes, which is given by the advection-dispersion equation, is outlined in Appendix A. Further details are available in the literature (e.g., Käss, 1998;Bear and Verruijt, 1987;Levenspiel, 1972;Cook, 2003).…”

Section: Methodsmentioning

confidence: 99%

“…The discrete case normally implies the use of the so-called cubic law that resulted, in particular, from the works of Snow (1969) and Louis (1974). Other studies introduced some tuning of the original formulas (a review can be found in Lee and Farmer, 1993;Cook, 2003). However the flow of fluids in fractured media follows a channelled pattern and current understanding of the process and related phenomena is still fraught with difficulties.…”

Section: Introductionmentioning

confidence: 99%

Solute transport in fractured media – analysis of non-reversibility in tracer tests

Rodrigues

Lima

Cruz

2008

Nonlin. Processes Geophys.

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Abstract. This paper describes several small-scale (laboratory) experiments designed to simulate solute transport through fractured formations. A block of granite was broken to produce a fracture similar to those found in natural environments. Seven holes were drilled in the block to intersect the fracture. Later these holes functioned as either inlet or outlet points. All the possible combinations of pairs of inlet-outlet points were used to set up the tracer tests that provided the data analysed in this paper.The results indicate that reverse tracer tests do not necessarily provide symmetric results. Under some circumstances, the non-reversibility might be used to detect differences in the morphology of the fracture. The results also indicate that it is possible to estimate reasonably well the volume available for the circulation of the fluid by using transport models that neglect diffusion.

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“…The upper ∼ 20 m of the granite is well weathered, porous and permeable saprolite; below this is relatively fresh, fractured bedrock; together saprolite and bedrock form a single, connected aquifer. The fractured granite aquifer extends no deeper than 150 m, as below this depth the fracture conductivity is negligible due to the high lithostatic pressure (Cook, 2003;Boutt et al, 2010;Dept. Sustainability and Environment, 2012).…”

Section: Study Sitementioning

confidence: 99%

Biomass uptake and fire as controls on groundwater solute evolution on a southeast Australian granite: aboriginal land management hypothesis

et al. 2014

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Abstract. The chemical composition of groundwater and surface water is often considered to be dominated by waterrock interactions, particularly weathering; however, it has been increasingly realised that plant uptake can deplete groundwater and surface water of nutrient elements. Here we show, using geochemical mass balance techniques, that water-rock interactions do not control the hydrochemistry at our study site within a granite terrain in southwest Victoria, Australia. Instead the chemical species provided by rainfall are depleted by plant biomass uptake and exported, predominantly through fire. Regular landscape burning by Aboriginal land users is hypothesized to have caused the depletion of chemical species in groundwater for at least the past 20 000 yr by accelerating the export of elements that would otherwise have been stored within the local biomass. These findings are likely to be applicable to silicate terrains throughout southeast Australia, as well as similar lithological and climatic regions elsewhere in the globe, and contrast with studies of groundwater and surface water chemistry in higher rainfall areas of the Northern Hemisphere, where water-rock interactions are the dominant hydrochemical control.

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Groundwater ages in fractured rock aquifers

Cited by 111 publications

References 25 publications

At what scales do climate variability and land cover change impact on flooding and low flows?

At what scales do climate variability and land cover change impact on flooding and low flows?

Solute transport in fractured media – analysis of non-reversibility in tracer tests

Biomass uptake and fire as controls on groundwater solute evolution on a southeast Australian granite: aboriginal land management hypothesis

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