Electron spin resonance dating of toxodon tooth from upper Ribeira Valley, São Paulo, Brazil

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dc.contributor.authorKINOSHITA, ANGELA
dc.contributor.authorGHILARDI, ALINE M.
dc.contributor.authorFERNANDES, MARCELO A.
dc.contributor.authorFIGUEIREDO, ANA M.G.
dc.contributor.authorBAFFA, OSWALDO
dc.coverageInternacionalpt_BR
dc.date.accessioned2017-04-07T17:58:14Z
dc.date.available2017-04-07T17:58:14Z
dc.date.issued2016pt_BR
dc.description.abstractElectron spin resonance (ESR) dating was applied to date a sample of fossil tooth found in Ribeira Valley, São Paulo, Brazil. This region is characterized by abundant fossil records of Pleistocene–Holocene South American megafauna belonging to different faunistic moments related to climate changes during the quaternary. As the number of fossils dated is not too large, the dating of materials from this region will provide important information to better understand the events associated with the presence and extinction of these species. The equivalent dose (De) was determined using single exponential fitting resulting in (24 ± 1)Gy. The De was converted to age using ROSY ESR Dating program and the concentration of radioisotopes present in the sample and soil determined through neutron activation analysis. The ages cover the range of 25–34 ka. This information is important to contextualize other findings in the region from different sites and to help obtain better information about the climate changes in this region.pt_BR
dc.format.extent296-301pt_BR
dc.identifier.citationKINOSHITA, ANGELA; GHILARDI, ALINE M.; FERNANDES, MARCELO A.; FIGUEIREDO, ANA M.G.; BAFFA, OSWALDO. Electron spin resonance dating of toxodon tooth from upper Ribeira Valley, São Paulo, Brazil. <b>Radiation Protection Dosimetry</b>, v. 172, p. 296-301, 2016. DOI: <a href="https://dx.doi.org/10.1093/rpd/ncw195">10.1093/rpd/ncw195</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/27367.
dc.identifier.doi10.1093/rpd/ncw195pt_BR
dc.identifier.issn0144-8420pt_BR
dc.identifier.percentilfi21.42
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/27367
dc.identifier.vol172pt_BR
dc.relation.ispartofRadiation Protection Dosimetrypt_BR
dc.rightsclosedAccesspt_BR
dc.subjectage estimation
dc.subjectclimatic change
dc.subjectconcentration ratio
dc.subjectdose equivalents
dc.subjectecological concentration
dc.subjectelectron spin resonance
dc.subjectfossils
dc.subjectneutron activation analysis
dc.subjectradioisotopes
dc.subjectspin
dc.subjectteeth
dc.subjectvalleys
dc.subjectbrazil
dc.titleElectron spin resonance dating of toxodon tooth from upper Ribeira Valley, São Paulo, 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.recebimento17-04pt_BR
ipen.identifier.fi0.917pt_BR
ipen.identifier.ipendoc23561pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods15
ipen.range.fi0.001 - 1.499
ipen.range.percentilfi0.00 - 24.99
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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