Early Aptian marine incursions in the interior of northeastern Brazil following the Gondwana breakup

dc.contributor.authorFauth, Gerson
dc.contributor.authorKern, Henrique Parisi
dc.contributor.authorVillegas-Martín, Jorge
dc.contributor.authorDe Lira Mota, Marcelo Augusto
dc.contributor.authordos Santos Filho, Marcos Antonio Batista
dc.contributor.authorSanta Catharina, Amanda [UNESP]
dc.contributor.authorLeandro, Lilian Maia
dc.contributor.authorLuft-Souza, Fernanda
dc.contributor.authorStrohschoen, Oscar
dc.contributor.authorNauter-Alves, Andressa
dc.contributor.authorTungo, Edna de Jesus Francisco
dc.contributor.authorBruno, Mauro Daniel Rodrigues
dc.contributor.authorCeolin, Daiane
dc.contributor.authorBaecker-Fauth, Simone
dc.contributor.authorBom, Marlone Heliara Hünnig
dc.contributor.authorLima, Francisco Henrique de Oliveira
dc.contributor.authorSantos, Alessandra
dc.contributor.authorAssine, Mario Luis [UNESP]
dc.contributor.institutionUnisinos University
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionResearch Center (CENPES)
dc.description.abstractThis study reports a set of primeval marine incursions identified in two drill cores, 1PS-06-CE, and 1PS-10-CE, which recovered the Barbalha Formation, Araripe Basin, Brazil. Based on a multi-proxy approach involving stratigraphy, microbiofacies, ichnofossils, and microfossils, three short-lived marine incursions were identified, designated Araripe Marine Incursions (AMI) 1–3. AMI-1 and AMI-2, which occur within the shales of the Batateira Beds (lower part of the Barbalha Formation), were identified by the occurrence of benthonic foraminifera, calcareous nannofossils, dinocysts, and a mass mortality event of non-marine ostracods. AMI-3 was recognized in the upper part of the Barbalha Formation, based on the occurrence of ichnofossils and planktonic foraminifera. The observation of the planktonic foraminifera genus Leupoldina for the first time in the basin indicates early Aptian/early late Aptian age for these deposits, and the first opportunity of correlation with global foraminifera biozonation. Our findings have implications for the breakup of the Gondwana Supercontinent, as these incursions represent the earliest marine-derived flooding events in the inland basins of northeastern Brazil.en
dc.description.affiliationInstituto Tecnológico de Paleoceanografia e Mudanças Climáticas (itt Oceaneon) Unisinos University, Avenida Unisinos, 950-Cristo Rei, RS
dc.description.affiliationPrograma de Pós-Graduação em Geologia Unisinos University, Avenida Unisinos, 950-Cristo Rei, RS
dc.description.affiliationDepartment of Geology São Paulo State University-UNESP, SP
dc.description.affiliationPetrobras Research Center (CENPES), Av. Horácio Macedo, 950, Cidade Universitária, Ilha do Fundão, RJ
dc.description.affiliationUnespDepartment of Geology São Paulo State University-UNESP, SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: 308087/2019-4
dc.description.sponsorshipIdCNPq: 310955/2021-1
dc.identifier.citationScientific Reports, v. 13, n. 1, 2023.
dc.relation.ispartofScientific Reports
dc.titleEarly Aptian marine incursions in the interior of northeastern Brazil following the Gondwana breakupen