Rising mollusk bivalves from the ashes: Geologic, biostratigraphic and evolutionary implications from tuff data in the Permian Corumbataí Formation, Paraná Basin, Brazil

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorOuro Preto Federal University-
Autor(es): dc.contributorCentro de Investigaciones Geológicas – CONICET – FCNyM (UNLP)-
Autor(es): dc.contributorUniversity of Brasilia-
Autor(es): dc.creatorChristofoletti, B.-
Autor(es): dc.creatorWarren, L. V.-
Autor(es): dc.creatorVarejão, F. G.-
Autor(es): dc.creatorSimões, M. G.-
Autor(es): dc.creatorGómez-Peral, L. E.-
Autor(es): dc.creatorLana, C.-
Autor(es): dc.creatorRodrigues, M. G.-
Autor(es): dc.creatorAssine, M. L.-
Data de aceite: dc.date.accessioned2025-08-21T19:32:31Z-
Data de disponibilização: dc.date.available2025-08-21T19:32:31Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jsames.2023.104750-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/308595-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/308595-
Descrição: dc.descriptionDuring the Permian, the southwestern Gondwana margin experienced episodes of intense volcanism tied to the Choiyoi magmatism. Several ash-fall horizons related to this magmatic event are preserved within the Late Paleozoic lake-sea sedimentary record of the Paraná Basin. Furthermore, near the Permian-Triassic boundary, a meteor fell in the northern border of the basin, generating unshocked zircon grains preserved in a stratigraphic marker called the Porangaba Bed. In this study, a new U-Pb zircon age of 265.17 ± 3.2 Ma is presented for a volcanic tuff in the upper part of the Corumbataí Formation, near the stratigraphic interval of the Porangaba Bed. In addition, Lu-Hf isotopic compositions of the zircon grains, whole-rock geochemistry, and atmospheric circulation data indicate the affinity of the ash-fall horizon with the Frontal Cordillera source. The combination of these new and previous U-Pb ages allowed us to draw a more realistic scenario of the evolution of bivalve mollusk of the Corumbataí Formation and to improve the use of these macrofossils in the biostratigraphy of the Permian succession of the Paraná Basin. In this context, we established the limits of the Pinzonella neotropica-Jacquesia brasiliensis Association Biozone between 262.38 ± 5.7 Ma and 257.5 ± 2.2 Ma. Hence, in the north and central Paraná Basin the local resolution of this biozone is of ∼5 Ma. Moreover, the range of this biozone indicates that the endemic bivalves survived the end-Guadalupian (ca. 259 Ma) extinction event unscathed.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFondo para la Investigación Científica y Tecnológica-
Descrição: dc.descriptionUniversidade Estadual Paulista-
Descrição: dc.descriptionDepartament of Geology São Paulo State University, SP-
Descrição: dc.descriptionDepartament of Geology Ouro Preto Federal University, MG-
Descrição: dc.descriptionDepartment of Zoology São Paulo State University, SP-
Descrição: dc.descriptionCentro de Investigaciones Geológicas – CONICET – FCNyM (UNLP), Diagonal 113 N°275-
Descrição: dc.descriptionInstitute of Geosciences University of Brasilia, DF-
Descrição: dc.descriptionDepartament of Geology São Paulo State University, SP-
Descrição: dc.descriptionDepartment of Zoology São Paulo State University, SP-
Descrição: dc.descriptionCNPq: CNPq 405521/2021-9-
Descrição: dc.descriptionFondo para la Investigación Científica y Tecnológica: PICT 2018-4022-
Descrição: dc.descriptionUniversidade Estadual Paulista: PRH 40-ANP-
Idioma: dc.languageen-
Relação: dc.relationJournal of South American Earth Sciences-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiostratigraphy-
Palavras-chave: dc.subjectChoiyoi magmatism-
Palavras-chave: dc.subjectMegalake-
Palavras-chave: dc.subjectU-Pb age-
Palavras-chave: dc.subjectVolcanic ash-
Título: dc.titleRising mollusk bivalves from the ashes: Geologic, biostratigraphic and evolutionary implications from tuff data in the Permian Corumbataí Formation, Paraná Basin, Brazil-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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