Structures and Evolution of the Pleistocenic Sand Beach Ridges in the Patos Lagoon Inlet, RS, Brazil

Authors

  • IRAN CARLOS STALLIVIERE CORRÊA Centro de Estudos de Geologia Costeira e Oceânica/Instituto de Geociências/Universidade Federal do Rio Grande do Sul
  • SALVADOR ALIOTTA Instituto Argentino de Oceanografia
  • JAIR WESCHENFELDER Centro de Estudos de Geologia Costeira e Oceânica/Instituto de Geociências/Universidade Federal do Rio Grande do Sul

DOI:

https://doi.org/10.22456/1807-9806.19574

Keywords:

High resolution sismicity, beach/foredune ridges, Patos lagoon, transgressive/regressive barrier.

Abstract

This work presents the results of a high-resolution seismic reflection data survey carried out in the Patos lagoon inlet, near Rio Grande the southernmost harbor of Brazil. The analysis of the reflection patterns reveals the presence of transgressive/regressive barrier structures and beach/foredune-ridges. The mapping of these barrier structures allows a better understanding of the geological evolution of the Patos lagoon system during the Quaternary period and also helps to understand the evolution and migration of the actual lagoonal inlet between the Patos lagoon and Atlantic Ocean.

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Published

2004-12-31

How to Cite

CORRÊA, I. C. S., ALIOTTA, S., & WESCHENFELDER, J. (2004). Structures and Evolution of the Pleistocenic Sand Beach Ridges in the Patos Lagoon Inlet, RS, Brazil. Pesquisas Em Geociências, 31(2), 69–78. https://doi.org/10.22456/1807-9806.19574

Issue

Vol. 31 No. 2 (2004): Pesquisas em Geociências

Section

Articles