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Use este identificador para citar o ir al link de este elemento: http://hdl.handle.net/1843/50617
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Campo DCValorIdioma
dc.creatorCamila Batista Pintopt_BR
dc.creatorMauro Bruno da Silva Lacerdapt_BR
dc.creatorBernardo Lages Rodriguespt_BR
dc.creatorWagner da Nova Musselpt_BR
dc.creatorPedro Seyferth Ribeiro Romanopt_BR
dc.date.accessioned2023-03-02T19:31:57Z-
dc.date.available2023-03-02T19:31:57Z-
dc.date.issued2020-12-
dc.citation.volume104pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.jsames.2020.102843pt_BR
dc.identifier.issn1873-0647pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/50617-
dc.description.resumoThe Tartaruguito outcrop (Pirapozinho municipality, Presidente Prudente Formation, Bauru Basin) has been considered a Fossil-Lagerstätte due to its exceptional fossil quality and large number of fossils recovered. Despite its historical and paleontological importance, a geochemical composition study of the fossils from this site and their sedimentary matrixes has never been performed. Here, we have analyzed fossil turtle shell fragments and their respective sedimentary matrixes collected at Tartaruguito through Powder X-Ray Diffraction and Infrared Spectroscopy techniques, to determine their geochemical composition and obtain clues regarding the fossil diagenesis processes. The analyses showed that the fossil remains of the side-necked turtle Bauruemys elegans from the Tartaruguito locality are mainly composed of calcite (CaCO3) and hydroxyapatite partially substituted by fluorine (Ca10(PO4)6(OH)2-xFx). The sedimentary matrixes are mostly composed of quartz (SiO2) and calcite, with secondary amounts of feldspar. The presence of calcite on both, fossil and rocky matrix, might indicate that the fossil diagenesis process that occurred at the Tartaruguito locality was permineralization by calcite, especially considering the absence of quartz on the bones of the fossil specimens. Furthermore, the presence of a fluor-hydroxyapatite solid-solution might be a plausible explanation for the quality of fossils recovered in Tartaruguito, due to the better stability of fluorapatite when compared to hydroxyapatite.pt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICB - DEPARTAMENTO DE ZOOLOGIApt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectAnálise Químicapt_BR
dc.subjectBiological activitypt_BR
dc.subjectPowder X-ray diffractionpt_BR
dc.subjectFossil turtlespt_BR
dc.subjectBauru grouppt_BR
dc.subjectBauruemys eleganspt_BR
dc.subjectFossil diagenesispt_BR
dc.subjectPirapozinho localitypt_BR
dc.subject.otherGeoquímica analíticapt_BR
dc.subject.otherQuímica analíticapt_BR
dc.subject.otherRaios X - Difraçãopt_BR
dc.subject.otherEspectroscopia de infravermelhopt_BR
dc.subject.otherPaleontologia - São Paulo (Estado)pt_BR
dc.subject.otherBacias sedimentares - São Paulo (Estado)pt_BR
dc.subject.otherGeologia estratigráfica - Cretáceopt_BR
dc.subject.otherTartaruga fóssilpt_BR
dc.subject.otherQueloniopt_BR
dc.subject.otherCalcitapt_BR
dc.subject.otherHidroxiapatitapt_BR
dc.titleGeochemical characterization of fossil turtles from Tartaruguito outcrop (Upper Cretaceous, Bauru Basin, Presidente Prudente Formation), São Paulo state, southeastern Brazilpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0895981120303862pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-4490-6288pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8403-7884pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0586-5639pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9768-9830pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6819-2729pt_BR
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