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https://doi.org/10.5194/se-2018-140
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-2018-140
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
13 Feb 2019
13 Feb 2019
Status: this preprint was under review for the journal SE. A final paper is not foreseen.
The building, shaping, and filling of an Upper Slope Terrace: the Rio Grande Terrace, SW Atlantic
- 1Oceanographic Institute, University of São Paulo, São Paulo, 05508-120, Brazil
- 2Institute of Energy and Environment, University of São Paulo, São Paulo, 05508-010, Brazil
- 3Instituto Andaluz de Ciencias de la Tierra, Armilla, 18100, Spain
- 4Leon H Charney School of Marine Sciences, University of Haifa, Haifa, 3498838, Israel
- 5Escola do Mar, Ciência e Tecnologia, UNIVALI, Itajaí, 88302-901, Brazil
- 6Instituto de Pesquisas Tecnológicas do Estado de São Paulo, São Paulo, 05508-901, Brazil
- 1Oceanographic Institute, University of São Paulo, São Paulo, 05508-120, Brazil
- 2Institute of Energy and Environment, University of São Paulo, São Paulo, 05508-010, Brazil
- 3Instituto Andaluz de Ciencias de la Tierra, Armilla, 18100, Spain
- 4Leon H Charney School of Marine Sciences, University of Haifa, Haifa, 3498838, Israel
- 5Escola do Mar, Ciência e Tecnologia, UNIVALI, Itajaí, 88302-901, Brazil
- 6Instituto de Pesquisas Tecnológicas do Estado de São Paulo, São Paulo, 05508-901, Brazil
Abstract. In this work, we analyze the origin, evolution, and recent sedimentation of the Rio Grande Terrace (RGT), the most prominent upper slope terrace of the SW Atlantic. We gathered data from deep to shallow seismic, echo-sounding and surface sediments in order to recognize the role played by the geological inheritance, the sediment origin, and the present hydrodynamics, this last one defined by the action of the high speeds of the Brazil Current.
The RGT is here interpreted as a unique geomorphological feature, which was developed over a pre-Aptian basement high. It presents a complex modern morphology, given by the erosional action of the Brazil Current and its present surface sediments show a high complexity in terms of origin and grain size.
How to cite. de Mahiques, M. M., Alcántara-Carrió, J., Lobo, F. J., Schattner, U., dos Santos, R. F., Cazzoli y Goya, S., Ramos, R. B., Natorf de Abreu, J. G., Pereira de Souza, L. A., Lopes Figueira, R. C., and Bícego, M. C.: The building, shaping, and filling of an Upper Slope Terrace: the Rio Grande Terrace, SW Atlantic, Solid Earth Discuss. [preprint], https://doi.org/10.5194/se-2018-140, 2019.
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Michel Michaelovitch de Mahiques et al.
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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RC1: 'Letter', Anonymous Referee #1, 04 Apr 2019
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AC1: 'Withdraw', Michel Mahiques, 09 Apr 2019
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AC1: 'Withdraw', Michel Mahiques, 09 Apr 2019
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
- Printer-friendly version
- Supplement
-
RC1: 'Letter', Anonymous Referee #1, 04 Apr 2019
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AC1: 'Withdraw', Michel Mahiques, 09 Apr 2019
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AC1: 'Withdraw', Michel Mahiques, 09 Apr 2019
Michel Michaelovitch de Mahiques et al.
Michel Michaelovitch de Mahiques et al.
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Short summary
This paper is a contribution to the knowledge of the geological processes on the SW Atlantic. We tried to integrate data from different time-scales, such as the geological evolution (millions of years) to the hydrodynamic processes (days to years). The results allowed us to recognize the importance of the geological inheritance to the present morphology of submerged areas.
This paper is a contribution to the knowledge of the geological processes on the SW Atlantic. We...