Burial dating in archaeology using 10Be and 26Al in-situ produced cosmogenic radioisotopes

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dc.contributor.authorFink, Den_AU
dc.date.accessioned2020-06-11T06:52:16Zen_AU
dc.date.available2020-06-11T06:52:16Zen_AU
dc.date.issued2011-03-14en_AU
dc.date.statistics2020-06-01en_AU
dc.description.abstractDating sediment associated with archaeological artefacts and hominid fossils over the Plio-Pleistocene is difficult due to the limited range of radiocarbon, U-series and OSL techniques, with magnetostratigraphy being the only dating tool to offer chronological constraints. Recently a new innovative technique - in-situ cosmogenic burial dating – can provide burial ages from 0.5 to 5 Ma with errors of about 10%-15%. Galactic cosmic ray particles which interact with bedrock surfaces and boulders on the Earth’s surface result in producing a host of long-lived cosmogenic radionuclides (eg 10Be and 26Al). If we know the production rate of these radioisotopes, their half-life and can measure their minute concentration via AMS, we can estimate the time the bedrock or boulder has been exposed. If this material after initial dosing is transported to depths a few meters below the surface, production will cease, and decay will reduce their concentrations. The change in concentration is a measure of the burial age. If burial depth is insufficient, post-burial production by deep penetrating muons can be estimated to correct the burial age. The method has been successfully applied at key sites of hominid evolution. Details of the technique will be presented with examples of burial dating hominid cave deposit. © ANSTOen_AU
dc.identifier.citationFink, D. (2011). Burial dating in archaeology using 10Be and 26Al in-situ produced cosmogenic radioisotopes. Paper presented at the Italian - Australian Archaeology and Cultural Heritage Workshop. New scientific techniques in archaeology, palaeo-anthropology and cultural heritage, 14-17 March 2011, Rydges Hotel, Cronulla, Sydney.en_AU
dc.identifier.conferenceenddate17 March 2011en_AU
dc.identifier.conferencenameItalian - Australian Archaeology and Cultural Heritage Workshop. New scientific techniques in archaeology, palaeo-anthropology and cultural heritageen_AU
dc.identifier.conferenceplaceCronulla, Sydneyen_AU
dc.identifier.conferencestartdate14 March 2011en_AU
dc.identifier.govdoc9668en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9589en_AU
dc.language.isoenen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectCarbon 14en_AU
dc.subjectArchaeologyen_AU
dc.subjectIsotope datingen_AU
dc.subjectHistorical aspectsen_AU
dc.subjectFossilsen_AU
dc.subjectPleistocene epochen_AU
dc.subjectRadioisotopesen_AU
dc.subjectCavesen_AU
dc.titleBurial dating in archaeology using 10Be and 26Al in-situ produced cosmogenic radioisotopesen_AU
dc.typeConference Abstracten_AU
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