Architecture of rifted continental margins and break-up evolution: insights from the South Atlantic, North Atlantic and Red Sea-Gulf of Aden conjugate margins
International audience The tectonosedimentary development of the South Atlantic is compared with the Central Atlantic margins, which are associated with major episodes of magmatism during the Mesozoic continental break-up. Subsequently, the Cenozoic break-up in the North Atlantic led to the formatio...
Published in: | Geological Society, London, Special Publications |
---|---|
Main Authors: | , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
|
Subjects: | |
Online Access: | https://hal.science/hal-00730844 https://hal.science/hal-00730844/document https://hal.science/hal-00730844/file/Mohriak_LeroyGSL2012.pdf https://doi.org/10.1144/SP369.17 |
id |
ftsorbonneuniv:oai:HAL:hal-00730844v1 |
---|---|
record_format |
openpolar |
spelling |
ftsorbonneuniv:oai:HAL:hal-00730844v1 2024-02-11T10:04:24+01:00 Architecture of rifted continental margins and break-up evolution: insights from the South Atlantic, North Atlantic and Red Sea-Gulf of Aden conjugate margins Mohriak, Webster Ueipass Leroy, Sylvie Departamento de Geologia Regional e Geotectônica Universidade do Estado do Rio de Janeiro Brasil = Rio de Janeiro State University Brazil = Université d'État de Rio de Janeiro Brésil (UERJ) Institut des Sciences de la Terre de Paris (iSTeP) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) 2012 https://hal.science/hal-00730844 https://hal.science/hal-00730844/document https://hal.science/hal-00730844/file/Mohriak_LeroyGSL2012.pdf https://doi.org/10.1144/SP369.17 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1144/SP369.17 hal-00730844 https://hal.science/hal-00730844 https://hal.science/hal-00730844/document https://hal.science/hal-00730844/file/Mohriak_LeroyGSL2012.pdf doi:10.1144/SP369.17 info:eu-repo/semantics/OpenAccess ISSN: 0375-6440 Special Publication - Geological Society of London https://hal.science/hal-00730844 Special Publication - Geological Society of London, 2012, 369, pp.1-40. ⟨10.1144/SP369.17⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2012 ftsorbonneuniv https://doi.org/10.1144/SP369.17 2024-01-16T23:35:33Z International audience The tectonosedimentary development of the South Atlantic is compared with the Central Atlantic margins, which are associated with major episodes of magmatism during the Mesozoic continental break-up. Subsequently, the Cenozoic break-up in the North Atlantic led to the formation of the volcanic Norwegian-Greenland conjugate margins. The DSDP boreholes in the magma-poor Iberian-Newfoundland margins have confirmed the occurrence of exhumed mantle at the ocean - continent transition. This possibility has been suggested for the South Atlantic margins, but still lacks confirmation from drilling. The Red Sea and the Gulf of Aden may be considered as natural laboratories to study the break- up processes and formation of divergent continental margins. Using key geological and geophysi- cal data, we compare some of the structures observed in incipient stages of basin formation between the African and the Arabian plates with the structures observed in older sedimentary basins associated with the Gondwana break-up. We also analyse deep seismic reflection profiles and potential field data at the continent-ocean boundary of these conjugate margins, using palin- spastic reconstructions to define the corresponding seismic pairs. We conclude that the Red Sea and the Gulf of Aden display remarkable differences to the Iberian-Newfoundland margins, and notable similarities with the South Atlantic margins. Article in Journal/Newspaper Greenland Newfoundland North Atlantic HAL Sorbonne Université Greenland Geological Society, London, Special Publications 369 1 497 535 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Mohriak, Webster Ueipass Leroy, Sylvie Architecture of rifted continental margins and break-up evolution: insights from the South Atlantic, North Atlantic and Red Sea-Gulf of Aden conjugate margins |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The tectonosedimentary development of the South Atlantic is compared with the Central Atlantic margins, which are associated with major episodes of magmatism during the Mesozoic continental break-up. Subsequently, the Cenozoic break-up in the North Atlantic led to the formation of the volcanic Norwegian-Greenland conjugate margins. The DSDP boreholes in the magma-poor Iberian-Newfoundland margins have confirmed the occurrence of exhumed mantle at the ocean - continent transition. This possibility has been suggested for the South Atlantic margins, but still lacks confirmation from drilling. The Red Sea and the Gulf of Aden may be considered as natural laboratories to study the break- up processes and formation of divergent continental margins. Using key geological and geophysi- cal data, we compare some of the structures observed in incipient stages of basin formation between the African and the Arabian plates with the structures observed in older sedimentary basins associated with the Gondwana break-up. We also analyse deep seismic reflection profiles and potential field data at the continent-ocean boundary of these conjugate margins, using palin- spastic reconstructions to define the corresponding seismic pairs. We conclude that the Red Sea and the Gulf of Aden display remarkable differences to the Iberian-Newfoundland margins, and notable similarities with the South Atlantic margins. |
author2 |
Departamento de Geologia Regional e Geotectônica Universidade do Estado do Rio de Janeiro Brasil = Rio de Janeiro State University Brazil = Université d'État de Rio de Janeiro Brésil (UERJ) Institut des Sciences de la Terre de Paris (iSTeP) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Mohriak, Webster Ueipass Leroy, Sylvie |
author_facet |
Mohriak, Webster Ueipass Leroy, Sylvie |
author_sort |
Mohriak, Webster Ueipass |
title |
Architecture of rifted continental margins and break-up evolution: insights from the South Atlantic, North Atlantic and Red Sea-Gulf of Aden conjugate margins |
title_short |
Architecture of rifted continental margins and break-up evolution: insights from the South Atlantic, North Atlantic and Red Sea-Gulf of Aden conjugate margins |
title_full |
Architecture of rifted continental margins and break-up evolution: insights from the South Atlantic, North Atlantic and Red Sea-Gulf of Aden conjugate margins |
title_fullStr |
Architecture of rifted continental margins and break-up evolution: insights from the South Atlantic, North Atlantic and Red Sea-Gulf of Aden conjugate margins |
title_full_unstemmed |
Architecture of rifted continental margins and break-up evolution: insights from the South Atlantic, North Atlantic and Red Sea-Gulf of Aden conjugate margins |
title_sort |
architecture of rifted continental margins and break-up evolution: insights from the south atlantic, north atlantic and red sea-gulf of aden conjugate margins |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00730844 https://hal.science/hal-00730844/document https://hal.science/hal-00730844/file/Mohriak_LeroyGSL2012.pdf https://doi.org/10.1144/SP369.17 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Newfoundland North Atlantic |
genre_facet |
Greenland Newfoundland North Atlantic |
op_source |
ISSN: 0375-6440 Special Publication - Geological Society of London https://hal.science/hal-00730844 Special Publication - Geological Society of London, 2012, 369, pp.1-40. ⟨10.1144/SP369.17⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1144/SP369.17 hal-00730844 https://hal.science/hal-00730844 https://hal.science/hal-00730844/document https://hal.science/hal-00730844/file/Mohriak_LeroyGSL2012.pdf doi:10.1144/SP369.17 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1144/SP369.17 |
container_title |
Geological Society, London, Special Publications |
container_volume |
369 |
container_issue |
1 |
container_start_page |
497 |
op_container_end_page |
535 |
_version_ |
1790600997813354496 |