Development of Cenozoic circulation within the South African gateway from seismic reflection data
The gateway south of South Africa allows the exchange of water masses between the Indian/Pacific Oceans and the Atlantic. This heat transfers maintains the global conveyor belt. Hence the South African continental margin represents an important gateway, whose detailed evolution is not yet fully unde...
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ftawi:oai:epic.awi.de:17101 2024-09-15T18:19:01+00:00 Development of Cenozoic circulation within the South African gateway from seismic reflection data Uenzelmann-Neben, Gabriele Schlüter, Philip Weigelt, Estella 2007 https://epic.awi.de/id/eprint/17101/ https://hdl.handle.net/10013/epic.26954 unknown Uenzelmann-Neben, G. orcid:0000-0002-0115-5923 , Schlüter, P. and Weigelt, E. orcid:0000-0003-1598-456X (2007) Development of Cenozoic circulation within the South African gateway from seismic reflection data , 10th SAGA Biennal technical Meeting and Exhibition, 22-26 Oct, 1007, Wild Coast Sun, South Africa. . hdl:10013/epic.26954 EPIC310th SAGA Biennal technical Meeting and Exhibition, 22-26 Oct, 1007, Wild Coast Sun, South Africa. Conference notRev 2007 ftawi 2024-06-24T03:59:51Z The gateway south of South Africa allows the exchange of water masses between the Indian/Pacific Oceans and the Atlantic. This heat transfers maintains the global conveyor belt. Hence the South African continental margin represents an important gateway, whose detailed evolution is not yet fully understood. A compilation of the evolution of the oceanic circulation within the South African gateway since the Lower Eocene on the basis of seismic reflection data has been put forward and is being discussed. The effect of a proto-AABW can be found in the southern Cape Basin and south of South Africa as early as Lower Eocene-Lower Oligocene. In the period Lower Oligocene-Middle Miocene a current equivalent to AAIW/Agulhas Retroflection leaves its oldest traces identifiable on the eastern Agulhas Plateau. Indications for the Benguela Current can be found in the Cape Basin in Middle Miocene times. With the onset of NADW in the period Middle Miocene-Lower Pliocene the branch of AABW flowing through the Agulhas Passage is weakened and finally deflected to the south in Lower Pliocene-Holocene times. Conference Object NADW Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
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description |
The gateway south of South Africa allows the exchange of water masses between the Indian/Pacific Oceans and the Atlantic. This heat transfers maintains the global conveyor belt. Hence the South African continental margin represents an important gateway, whose detailed evolution is not yet fully understood. A compilation of the evolution of the oceanic circulation within the South African gateway since the Lower Eocene on the basis of seismic reflection data has been put forward and is being discussed. The effect of a proto-AABW can be found in the southern Cape Basin and south of South Africa as early as Lower Eocene-Lower Oligocene. In the period Lower Oligocene-Middle Miocene a current equivalent to AAIW/Agulhas Retroflection leaves its oldest traces identifiable on the eastern Agulhas Plateau. Indications for the Benguela Current can be found in the Cape Basin in Middle Miocene times. With the onset of NADW in the period Middle Miocene-Lower Pliocene the branch of AABW flowing through the Agulhas Passage is weakened and finally deflected to the south in Lower Pliocene-Holocene times. |
format |
Conference Object |
author |
Uenzelmann-Neben, Gabriele Schlüter, Philip Weigelt, Estella |
spellingShingle |
Uenzelmann-Neben, Gabriele Schlüter, Philip Weigelt, Estella Development of Cenozoic circulation within the South African gateway from seismic reflection data |
author_facet |
Uenzelmann-Neben, Gabriele Schlüter, Philip Weigelt, Estella |
author_sort |
Uenzelmann-Neben, Gabriele |
title |
Development of Cenozoic circulation within the South African gateway from seismic reflection data |
title_short |
Development of Cenozoic circulation within the South African gateway from seismic reflection data |
title_full |
Development of Cenozoic circulation within the South African gateway from seismic reflection data |
title_fullStr |
Development of Cenozoic circulation within the South African gateway from seismic reflection data |
title_full_unstemmed |
Development of Cenozoic circulation within the South African gateway from seismic reflection data |
title_sort |
development of cenozoic circulation within the south african gateway from seismic reflection data |
publishDate |
2007 |
url |
https://epic.awi.de/id/eprint/17101/ https://hdl.handle.net/10013/epic.26954 |
genre |
NADW |
genre_facet |
NADW |
op_source |
EPIC310th SAGA Biennal technical Meeting and Exhibition, 22-26 Oct, 1007, Wild Coast Sun, South Africa. |
op_relation |
Uenzelmann-Neben, G. orcid:0000-0002-0115-5923 , Schlüter, P. and Weigelt, E. orcid:0000-0003-1598-456X (2007) Development of Cenozoic circulation within the South African gateway from seismic reflection data , 10th SAGA Biennal technical Meeting and Exhibition, 22-26 Oct, 1007, Wild Coast Sun, South Africa. . hdl:10013/epic.26954 |
_version_ |
1810457117490937856 |