BENTHIC FORAMINIFERA AND PALEOECOLOGY OF A TERTIARY SECT!ON IN THE CAMPOS BASIN (WELL 1-RJS-305) SOUTHEASTERN PART OF THE BRAZILIAN CONTINENTAL MARGIN

Authors

  • Alwine Bertels Universidad de Buenos Aires
  • Ricardo Latgé Milward de Azevedo Petrobras
  • Alita Carmélia Ferreira Mesquita Petrobras
  • Walmir da Silva Abreu Petrobras

Abstract

The taxonomic study of benthic foraminifera from a Tertiary section of the Campos Basin, using qualitativa and quantitativa methods, allowed the reconstruction of its paleoenvironmental evolution. This study is a part of a research which attempts to catalogue the benthic foraminifera, which composed the inhabiting fauna of the Campos Basin during the mentioned geological age. The analised section shows, from the base to the top, a progressiva paleobathymetric reduction as it is indicated by the planktonic foraminifera/total fauna curve. The assemblage, although monotone, is diversified and reveals, in general, upper bathial to deep neritic conditions. Relative sea level falls produced several hiatuses registered during Late Paleocene, Early and Middle Eocene, Early Miocene (part) and Early Pliocene times.

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Published

1989-09-01

Issue

Vol. 3 No. 3 (1989)

Section

Articles

License

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How to Cite

BERTELS, Alwine; AZEVEDO, Ricardo Latgé Milward de; MESQUITA, Alita Carmélia Ferreira; ABREU, Walmir da Silva. BENTHIC FORAMINIFERA AND PALEOECOLOGY OF A TERTIARY SECT!ON IN THE CAMPOS BASIN (WELL 1-RJS-305) SOUTHEASTERN PART OF THE BRAZILIAN CONTINENTAL MARGIN . Boletim de Geociências da Petrobras, Rio de Janeiro, v. 3, n. 3, p. 175–189, 1989. Disponível em: https://bgp.petrobras.com.br/bgp/article/view/467. Acesso em: 10 mar. 2025.