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Heated flint TL-dating for Gruta da Oliveira (Portugal): dosimetric challenges and comparison of chronometric data

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dc.contributor.authorRichter, D.
dc.contributor.authorAngelucci, D.E.
dc.contributor.authorDias, M.I.
dc.contributor.authorPrudêncio, M.I.
dc.contributor.authorGouveia, M.A.
dc.contributor.authorCardoso, G.J.
dc.contributor.authorBurbidge, C.I.
dc.contributor.authorZilhão, João
dc.date.accessioned2018-01-28T17:37:52Z
dc.date.available2018-01-28T17:37:52Z
dc.date.issued2014
dc.description.abstractThe Mousterian stratigraphy of Gruta da Oliveira (Torres Novas, Portugal) contains one of the latest occupations by Neanderthals on the Iberian Peninsula. Thermoluminescence (TL) dates on heated flints were obtained for layers 13 and 14, and compared with the radiocarbon (charcoal and burnt bone) and U/ Th (secondary carbonates) dating results available for those layers and the succession as a whole. As the internal dose rates are very low, the TL age estimates are very dependent on the external dose rates, which show significant variation, including indications of spatial patterning. Through close inspection of the radiation geometries of samples and dosemeters, the appropriate gamma dosimetry is identified and the weighted mean TL ages (1-s) calculated accordingly are 55 7 ka for layer 13 and 77 8 ka for layer 14. These ages are stratigraphically consistent with the radiocarbon chronology for layers 9e11 and with the termini ante and post quem provided by U-series dating for the beginning and end of the accumulation of the deposits. The TL results corroborate that all radiocarbon dates below layer 11 are minimum ages only and, given the constraints derived from the proxy data available, place layer 13 and 14 post MIS 5. Sample as well as dosemeter numbers are low at Gruta da Oliveira, which limits the precision of TLdating of a prehistoric human activity. Further refinement of the chronostratigraphy will be based on Useries dating of non-human-related, interstratified secondary carbonates.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRichter, D., Angelucci, D. E., Dias, M. I., Prudêncio, M. I., Gouveia, M. A., Cardoso, G. J., . . . Zilhão, J. (2014). Heated flint TL-dating for Gruta da Oliveira (Portugal): dosimetric challenges and comparison of chronometric data. Journal of Archaeological Science, 41 705-715. doi: 10.1016/j.jas.2013.09.021pt_PT
dc.identifier.doi10.1016/j.jas.2013.09.021pt_PT
dc.identifier.issn0305-4403
dc.identifier.urihttp://hdl.handle.net/10451/31125
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationMIDDLE PALAEOLITHIC ARCHAEOLOGY OF THE ALMONDA KARSTIC SYSTEM
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0305440313003348?via%3Dihubpt_PT
dc.subjectThermoluminescence datingpt_PT
dc.subjectHeated flintpt_PT
dc.subjectMousterianpt_PT
dc.subjectMiddle Palaeolithicpt_PT
dc.subjectGruta da Oliveirapt_PT
dc.subjectPortugalpt_PT
dc.titleHeated flint TL-dating for Gruta da Oliveira (Portugal): dosimetric challenges and comparison of chronometric datapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMIDDLE PALAEOLITHIC ARCHAEOLOGY OF THE ALMONDA KARSTIC SYSTEM
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FHIS-ARQ%2F098164%2F2008/PT
oaire.citation.endPage715pt_PT
oaire.citation.startPage705pt_PT
oaire.citation.titleJournal of Archaeological Sciencept_PT
oaire.citation.volume41pt_PT
oaire.fundingStream3599-PPCDT
person.identifier.ciencia-id9414-324B-25F9
person.identifier.orcid0000-0001-5937-3061
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication371ed88c-7dcd-4ea5-b5ce-d76760f5be5e
relation.isAuthorOfPublication.latestForDiscovery371ed88c-7dcd-4ea5-b5ce-d76760f5be5e
relation.isProjectOfPublication21c0c3ec-806d-4332-ba21-58d2e446a2d5
relation.isProjectOfPublication.latestForDiscovery21c0c3ec-806d-4332-ba21-58d2e446a2d5

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