Micropaleontology of the Reef Facies of the Pirabas Formation (Lower Miocene), Pará State, Brazil

Authors

  • Vladimir de Araújo Távora Universidade Federal do Pará; Instituto de Geociências; Faculdade de Geologia; Laboratório de Paleontologia
  • Bruna Leal Passos de Souza Universidade Federal do Pará; Instituto de Geociências; Faculdade de Geologia; Laboratório de Paleontologia
  • Ignácio de Loiola Alvares Nogueira Neto Universidade Federal do Pará; Instituto de Geociências; Faculdade de Geologia; Laboratório de Paleontologia

DOI:

https://doi.org/10.11137/2014_2_100_110

Keywords:

Pirabas Formation, Fossil reef, Microfossils.

Abstract

This work presents the resulting data from microfossils analysis of the Pirabas Formation reef lithofacies, exposed in the Maçarico beach, Salinópolis city, Pará State, Brazil. The specific diversity and abundance indicates reef environment developed in warm and shallow waters with high energy and high availability of calcium carbonate. The microfossils also suggest low to moderate sedimentation rate and variable substrate composition. The intense diagenesis appears to have dissolved many specimens but the strucuture of the primary orictocoenosis was preserved.

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Published

2017-02-15

Issue

Vol. 37 No. 2 (2014)

Section

Article

License

This journal is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.