ESR dating of late Quaternary megafauna fossils from João Dourado, Bahia, Brazil

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dc.contributor.authorFARIA, FABIO H.C.pt_BR
dc.contributor.authorKINOSHITA, ANGELApt_BR
dc.contributor.authorCARVALHO, ISMAR de S.pt_BR
dc.contributor.authorARAUJO-JUNIOR, HERMINIO I. dept_BR
dc.contributor.authorPEGORIN, PRISCILApt_BR
dc.contributor.authorFIGUEIREDO, ANA M.G.pt_BR
dc.contributor.authorBAFFA, OSWALDOpt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2020-08-26T13:59:21Z
dc.date.available2020-08-26T13:59:21Z
dc.date.issued2020pt_BR
dc.description.abstractWe applied the ESR (Electron Spin Resonance) dating method to fossils of Notiomastodon platensis (two teeth) and Toxodontinae (two teeth) found in the fossiliferous deposit of Lajedão do Patrício, João Dourado, State of Bahia, Brazil, to identify the period of formation of this fossil accumulation. Neutron Activation Analysis was applied to determine the concentrations of the main radioisotopes in enamel, dentine and sediment. The ages found for N. platensis are 16.8 ± 2.6 ka and 12.5 ± 2.3 ka, while the ages for Toxodontinae are 9.6 ± 1 ka and 9.1 ± 1 ka. The results for Notiomastodon. platensis and Toxodontinae are similar to other fossiliferous of Brazil. The estimated maximum time-averaging for Lajedão do Patrício is 11.3 ka, indicating a long period of accumulation of skeletal remains, attributed to resedimentation and reworking. The crossing between the period of formation of fossil assemblage Lajedão do Patrício and ages of climatic variations diponible in paleoclimatic curves produced for the Quaternary of northeastern Brazil indicates different climatic and environmental conditions during the formation of the deposit.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDFAPERJ: E-26/202910/2017; E-26/200609/2018; E-26/203176/2017pt_BR
dc.description.sponsorshipIDFAPESP: 18/02866-9; 17/10690-5; 13/07699-0; 07/06720-4pt_BR
dc.description.sponsorshipIDCNPq: 303596/2016-3; 301405/2018-2; 303596/2016-3; 304107/2019-0pt_BR
dc.format.extent1-7pt_BR
dc.identifier.citationFARIA, FABIO H.C.; KINOSHITA, ANGELA; CARVALHO, ISMAR de S.; ARAUJO-JUNIOR, HERMINIO I. de; PEGORIN, PRISCILA; FIGUEIREDO, ANA M.G.; BAFFA, OSWALDO. ESR dating of late Quaternary megafauna fossils from João Dourado, Bahia, Brazil. <b>Journal of South American Earth Sciences</b>, v. 101, p. 1-7, 2020. DOI: <a href="https://dx.doi.org/10.1016/j.jsames.2020.102586">10.1016/j.jsames.2020.102586</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/31384.
dc.identifier.doi10.1016/j.jsames.2020.102586pt_BR
dc.identifier.issn0895-9811pt_BR
dc.identifier.orcid0000-0001-6908-4669pt_BR
dc.identifier.percentilfi35.93pt_BR
dc.identifier.percentilfiCiteScore60.50
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/31384
dc.identifier.vol101pt_BR
dc.relation.ispartofJournal of South American Earth Sciencespt_BR
dc.rightsopenAccesspt_BR
dc.subjectfossils
dc.subjectelectron spin resonance
dc.subjectquaternary period
dc.subjectteeth
dc.subjectdentin
dc.subjectenamels
dc.subjecttanks
dc.subjecttime dependence
dc.subjectvertebrates
dc.subjectsediments
dc.titleESR dating of late Quaternary megafauna fossils from João Dourado, Bahia, Brazilpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorANA MARIA GRACIANO FIGUEIREDO
ipen.codigoautor1091
ipen.contributor.ipenauthorANA MARIA GRACIANO FIGUEIREDO
ipen.date.recebimento20-08
ipen.identifier.fi2.093pt_BR
ipen.identifier.fiCiteScore2.6
ipen.identifier.ipendoc27158pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi25.00 - 49.99
ipen.type.genreArtigo
relation.isAuthorOfPublication9e1bfa0f-3272-4c1c-b530-fc38c5d55b96
relation.isAuthorOfPublication.latestForDiscovery9e1bfa0f-3272-4c1c-b530-fc38c5d55b96
sigepi.autor.atividadeFIGUEIREDO, ANA M.G.:1091:320:Npt_BR
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