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Hydrodynamic modelling of bottom currents and sediment transport in the Canyon São Tomé (Brazil)

By
José A. M. Lima
José A. M. Lima
1
Petróleo Brasileiro S.A., Petrobras, Research Center, CENPES, Rio de Janeiro, RJ, 21.941-598, Brazil (e-mail: jlima@petrobras.com.br)
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Osmar O. Moller, Jr
Osmar O. Moller, Jr
2
Departamento de Física, Fundação Universidade do Rio Grande—FURG, Av. Italia Km 8, Mail Box 474, Rio Grande, RS, 96201-900, Brazil
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Adriano R. Viana
Adriano R. Viana
3
Petróleo Brasileiro S.A., Petrobras, E&P-Exploration, 65, Chile Av., Rio de Janeiro, RJ, 20031-912, Brazil
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Rafael Piovesan
Rafael Piovesan
2
Departamento de Física, Fundação Universidade do Rio Grande—FURG, Av. Italia Km 8, Mail Box 474, Rio Grande, RS, 96201-900, Brazil
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Published:
January 01, 2007

Abstract:

This study presents the hydrodynamic modelling of ocean currents along the Canyon São Tomé, Campos Basin, Brazil, and their impact on sediment transport. The objective is to develop a tool to simulate the interaction between bottom currents and the submarine physiography, and to depict the relative importance of any individual current forcing mechanism as a sediment-reworking agent. This paper presents the evolution of along-channel currents over a tidal cycle and the simulation of a turbidity current. The resultant sediment transport under the combination of turbidity and oceanic currents is also simulated. This model is a step forward towards the understanding of the geometric and textural modifications imposed by bottom currents upon gravity-driven deposits, which is of great importance for the oil industry.

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Contents

Geological Society, London, Special Publications

Economic and Palaeoceanographic Significance of Contourite Deposits

A. R. Viana
A. R. Viana
Petrobras, Brazil
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M. Rebesco
M. Rebesco
Petrobras, Brazil
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Geological Society of London
Volume
276
ISBN electronic:
9781862395244
Publication date:
January 01, 2007

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