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Assessment of recharge to groundwater systems in the arid southwestern part of Northern Territory, Australia, using chlorine-36

Cresswell, Richard; Wischusen, J; Jacobson, G; Fifield, L Keith


The sustainability of community water supplies drawn from shallow aquifers in the arid south-west of the Northern Territory has been evaluated using the radioactive isotope chlorine-36 (36Cl). These aquifers include fractured sandstones of the Ngalia Basin, fractured metamorphic rocks and Cainozoic sands and gravels. 36Cl/Cl ratios for these shallow, regional groundwaters exhibit a bimodal distribution with peaks at 205 (±7) and 170 (±7)×10-15. The higher ratio probably represents modern...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
Source: Hydrogeology Journal


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