Science report
| 
26 Apr 2021
Science report |
| 26 Apr 2021
| 26 Apr 2021
Drilling the Aptian–Albian of the Sergipe–Alagoas Basin, Brazil: paleobiogeographic and paleoceanographic studies in the South Atlantic
Gerson Fauth
CORRESPONDING AUTHOR
itt Oceaneon – Instituto Tecnológico de Paleoceanografia e
Mudanças Climáticas, Unisinos University, Av. Unisinos, 950, São
Leopoldo, RS, 93022-750, Brazil
Mauro Daniel Rodrigues Bruno
itt Oceaneon – Instituto Tecnológico de Paleoceanografia e
Mudanças Climáticas, Unisinos University, Av. Unisinos, 950, São
Leopoldo, RS, 93022-750, Brazil
Jorge Villegas-Martín
itt Oceaneon – Instituto Tecnológico de Paleoceanografia e
Mudanças Climáticas, Unisinos University, Av. Unisinos, 950, São
Leopoldo, RS, 93022-750, Brazil
Jairo Francisco Savian
Departamento de Geologia e Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, RS, 91501-970, Brazil
Rodrigo do Monte Guerra
itt Oceaneon – Instituto Tecnológico de Paleoceanografia e
Mudanças Climáticas, Unisinos University, Av. Unisinos, 950, São
Leopoldo, RS, 93022-750, Brazil
Guilherme Krahl
itt Oceaneon – Instituto Tecnológico de Paleoceanografia e
Mudanças Climáticas, Unisinos University, Av. Unisinos, 950, São
Leopoldo, RS, 93022-750, Brazil
Francisco Henrique de Oliveira Lima
PETROBRAS/CENPES/PDEP/BPA, Av. Horácio Macedo, 950, Cidade Universitária, Ilha do Fundão,
Rio de Janeiro, RJ, 21941-915, Brazil
Oscar Strohschoen Jr.
PETROBRAS/CENPES/PDEP/BPA, Av. Horácio Macedo, 950, Cidade Universitária, Ilha do Fundão,
Rio de Janeiro, RJ, 21941-915, Brazil
Raquel Gewehr de Mello
Departamento de Geologia e Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, RS, 91501-970, Brazil
Fernando Marcanth Lopes
itt Oceaneon – Instituto Tecnológico de Paleoceanografia e
Mudanças Climáticas, Unisinos University, Av. Unisinos, 950, São
Leopoldo, RS, 93022-750, Brazil
Carolina Gonçalves Leandro
Departamento de Geologia e Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, RS, 91501-970, Brazil
Eduardo da Silva Aguiar
itt Oceaneon – Instituto Tecnológico de Paleoceanografia e
Mudanças Climáticas, Unisinos University, Av. Unisinos, 950, São
Leopoldo, RS, 93022-750, Brazil
Related authors
No articles found.
João M. F. Ramos, Jairo F. Savian, Daniel R. Franco, Milene F. Figueiredo, Rodolfo Coccioni, and Fabrizio Frontalini
EGUsphere, https://doi.org/10.5194/egusphere-2025-3832, https://doi.org/10.5194/egusphere-2025-3832, 2025
This preprint is open for discussion and under review for Climate of the Past (CP).
Short summary
Short summary
During the Aptian–Albian interval of the Cretaceous, Earth's climate changed significantly due to volcanism, atmospheric shifts, and reorganised ocean circulation. These changes influenced marine sediments, especially reddish Cretaceous oceanic red beds (CORBs), which reflect intervals of deep-ocean oxygenation. This study analysed sediment cores from ODP Site 1049 (North Atlantic) to determine when CORBs formed and whether similar patterns occurred in other basins, such as the Tethys.
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Short summary
This paper gives an overview, preliminary results, and perspectives of a drilling project in northeastern Brazil. It presents a promising new record of mid-Cretaceous rocks from the South Atlantic Ocean, which may have registered significant geologic events that affected the distribution of marine ecosystems, as well as major paleoclimatic events. It is also important to assess if a correlation exists between the biotic assemblages of the South Atlantic Ocean and the Tethys Sea.
This paper gives an overview, preliminary results, and perspectives of a drilling project in...
