Use of Pb-210 and Cs-117 to simultaneously constrain ages and sources of post-dam sediments in the Cordeaux reservoir, Sydney, Australia

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dc.contributor.authorSimms, ADen_AU
dc.contributor.authorWoodroffe, CDen_AU
dc.contributor.authorJones, BGen_AU
dc.contributor.authorHeijnis, Hen_AU
dc.contributor.authorMann, RAen_AU
dc.contributor.authorHarrison, JJen_AU
dc.date.accessioned2009-06-11T04:24:28Zen_AU
dc.date.accessioned2010-04-30T05:01:37Zen_AU
dc.date.available2009-06-11T04:24:28Zen_AU
dc.date.available2010-04-30T05:01:37Zen_AU
dc.date.issued2008-07en_AU
dc.date.statistics2008-07en_AU
dc.description.abstractEnvironmental radionuclides can be employed as tracers of sediment movement and delivery to water bodies such as lakes and reservoirs. The chronologies of sediments that have accumulated in the Cordeaux reservoir in Sydney, Australia, were determined by the rate of change of Pb-210(cx) with depth and indicate slow accretion in the reservoir. The ratio of enrichment of radionuclides in sediment cores to Pb-210(cx) and (CS)-C-117 concentrations in a reference soil sample within the Cordeaux catchment indicates that the dominant source of sediment in the Cordeaux reservoir is surface erosion (detachment and removal of sediment at depths less than 30 cm). However, in the Kembla Creek arm of the reservoir a mixture of sources was detected and includes sheet and rill erosion together with sub-soil contributions. Implications for the utility of these radionuclide sedimentation assessments, especially where samples are limited, are that well-constrained chronologies and sources of soil erosion are facilitated. © 2008, Elsevier Ltd.en_AU
dc.identifier.citationSimms, A. D., Woodroffe, C., Jones, B. G., Heijnis, H., Mann, R. A., & Harrison, J. (2008). Use of Pb-210 and Cs-117 to simultaneously constrain ages and sources of post-dam sediments in the Cordeaux reservoir, Sydney, Australia. Journal of Environmental Radioactivity, 99(7), 1111-1120. doi:10.1016/j.jenvrad.2008.01.002en_AU
dc.identifier.govdoc1094en_AU
dc.identifier.issn0265-931Xen_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleJournal of Environmental Radioactivityen_AU
dc.identifier.pagination1111-1120en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jenvrad.2008.01.002en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1335en_AU
dc.identifier.volume99en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectRadiopharmaceuticalsen_AU
dc.subjectSedimentsen_AU
dc.subjectWater reservoirsen_AU
dc.subjectAustraliaen_AU
dc.subjectErosionen_AU
dc.subjectRadionuclide migrationen_AU
dc.titleUse of Pb-210 and Cs-117 to simultaneously constrain ages and sources of post-dam sediments in the Cordeaux reservoir, Sydney, Australiaen_AU
dc.typeJournal Articleen_AU
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