Integrated biostratigraphy of the Upper Cretaceous in Santos Basin: ostracodes, charophytes and palynomorphs

Authors

  • Gerson Fauth Universidade do Vale do Rio dos Sinos
  • Alessandra da Silva dos Santos Universidade do Vale do Rio dos Sinos
  • Carlos Eduardo Lucas Vieira Universidade do Vale do Rio dos Sinos
  • Cristianini Trescastro Bergue Universidade do Vale do Rio dos Sinos
  • Eduardo Aldo Musacchio in memorian
  • Elizabete Pedrão Ferreira Petrobras
  • Javier Helenes Escamilla Centro de Investigacion Cientifi ca y Educacion Superior de Ensenada
  • Marcelo de Araújo Carvalho Universidade Federal do Rio de Janeiro

Keywords:

ostracoda, charophytes, palynomorphs, biostratigraphy, late Cretaceous

Abstract

An integrated biostratigraphic study of the middle Santonian-upper Maastrichtian interval in the Santos Basin was carried out based on ostracode, charophyte and palinomorph occurrences. Hundred nineteen species of ostracodes and 24 of charophytes were registered in the 14 wells studied. Based on the distribution in time and space of those microfossils, four zones of marine ostracodes, three zones of ostracodes and two zones of charophytes were proposed to paralic paleoenvironment. The Santos Basin has paralic sedimentary intervals where the marine microfossils do not offer good biostratigraphic resolution. The present study, therefore, brings a contribution to more complete zonation for that section. The potential of the cretaceous shelf marine ostracodes for correlation of sedimentary basins and the viability of paralic ostracodes and charophytes incoastal environments is highlighted.

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Published

2012-11-01

Issue

Vol. 20 No. 1-2 (2012)

Section

Articles

License

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How to Cite

FAUTH , Gerson; SANTOS , Alessandra da Silva dos; VIEIRA , Carlos Eduardo Lucas; BERGUE , Cristianini Trescastro; MUSACCHIO , Eduardo Aldo; FERREIRA , Elizabete Pedrão; ESCAMILLA , Javier Helenes; CARVALHO , Marcelo de Araújo. Integrated biostratigraphy of the Upper Cretaceous in Santos Basin: ostracodes, charophytes and palynomorphs. Boletim de Geociências da Petrobras, Rio de Janeiro, v. 20, n. 1-2, p. 229–258, 2012. Disponível em: https://bgp.petrobras.com.br/bgp/article/view/95. Acesso em: 9 mar. 2025.