Characterising formation pathways of oxalate accretions: implications for radiocarbon dating rock art

dc.contributor.authorWebster, Cen_AU
dc.contributor.authorHuntly, Jen_AU
dc.contributor.authorJacobsen, GEen_AU
dc.contributor.authorBalngarrawarra Aboriginal Corporationen_AU
dc.contributor.authorBuubu Gujin Aboriginal Corporationen_AU
dc.contributor.authorRangers, Len_AU
dc.contributor.authorCole, Nen_AU
dc.contributor.authorAubert, Men_AU
dc.contributor.authorWallis, LAen_AU
dc.date.accessioned2025-08-21T11:42:18Zen_AU
dc.date.available2025-08-21T11:42:18Zen_AU
dc.date.issued0202-12-03en_AU
dc.date.statistics2025-03-27en_AU
dc.description.abstractOxalate mineral formation in rockshelter sites is a phenomenon associated with rock art across the globe. Oxalate accretions are often assumed to be the product of geological weathering or biological processes despite the definitive mechanism for their formation still being largely unknown. Carbon bearing oxalates have previously been radiocarbon dated and used to build chronological sequences associated with rock art. With the mechanism for their formation remaining ambiguous, the source of the carbon used to obtain radiocarbon dates is frequently unknown, leading to concerns regarding the accuracy and veracity of such age determinations. Under the umbrella of the ABM project, oxalate mineral accretions from rockshelter sites in south east Cape York Peninsula have been sampled with the goal of characterising the formation pathway to evaluate if they are suitable for radiocarbon dating. Here we report on the characterisation of oxalate minerals from south east CYP and possible formation pathways, assessing the hypothesis of a biological source of oxalate accretions. We trialled multiple pre-treatments for radiocarbon dating, providing insights regarding the amount of initial sample required for viability, and identifying potential contaminants. © The Authorsen_AU
dc.identifier.booktitleAAA 2024 Sharing Archaeological Narratives Abstract Bookleten_AU
dc.identifier.citationWebster, C., Huntly, J., Jacobsen G., Balngarrawarra Aboriginal Corporation., Buubu Gujin Aboriginal Corporation., Rangers, L., Cole, N., Aubert, M., & Wallis, L. (2024). Characterising formation pathways of oxalate accretions: implications for radiocarbon dating rock art. Presentation to the Australian Archaeological Association Annual Conference 2024, Cairns, Queensland, 3-6 December 2024. In AAA 2024 Sharing Archaeological Narratives Abstract Booklet, (pp. 132). Retrieved from: https://www.aaaconference.com.au/2024/wp-content/uploads/2024/11/AbstractBooklet.pdfen_AU
dc.identifier.conferenceenddate2024-12-06en_AU
dc.identifier.conferencenameAustralian Archaeological Association Annual Conference 2024en_AU
dc.identifier.conferenceplaceCairns, Queenslanden_AU
dc.identifier.conferencestartdate2024-12-03en_AU
dc.identifier.pagination132en_AU
dc.identifier.urihttps://www.aaaconference.com.au/2024/wp-content/uploads/2024/11/AbstractBooklet.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16401en_AU
dc.language.isoenen_AU
dc.publisherAustralian Archaeological Associationen_AU
dc.subjectOxalatesen_AU
dc.subjectCarbon 14en_AU
dc.subjectCultural objectsen_AU
dc.subjectQueenslanden_AU
dc.subjectAustraliaen_AU
dc.subjectContaminationen_AU
dc.subjectCarbonen_AU
dc.titleCharacterising formation pathways of oxalate accretions: implications for radiocarbon dating rock arten_AU
dc.typeConference Abstracten_AU
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