Plate tectonic reconstructions and paleogeographic maps of the central and North Atlantic oceans
We have established a new plate kinematic model of the central and North Atlantic oceans between North America, Africa, Meseta, Iberia, Flemish Cap, and Galicia Bank from Late Triassic to Late Cretaceous to better understand the nature and timing of rifting of Nova Scotia and Morocco conjugate conti...
Published in: | Canadian Journal of Earth Sciences |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing, Nrc Research Press
2012
|
Subjects: | |
Online Access: | https://archimer.ifremer.fr/doc/00117/22805/20913.pdf https://doi.org/10.1139/e2012-071 https://archimer.ifremer.fr/doc/00117/22805/ |
id |
ftarchimer:oai:archimer.ifremer.fr:22805 |
---|---|
record_format |
openpolar |
spelling |
ftarchimer:oai:archimer.ifremer.fr:22805 2023-05-15T17:29:21+02:00 Plate tectonic reconstructions and paleogeographic maps of the central and North Atlantic oceans Sibuet, Jean-claude Rouzo, Stephane Srivastava, Shiri 2012-12 application/pdf https://archimer.ifremer.fr/doc/00117/22805/20913.pdf https://doi.org/10.1139/e2012-071 https://archimer.ifremer.fr/doc/00117/22805/ eng eng Canadian Science Publishing, Nrc Research Press https://archimer.ifremer.fr/doc/00117/22805/20913.pdf doi:10.1139/e2012-071 https://archimer.ifremer.fr/doc/00117/22805/ Tous droits réservés 2013 – Éditions Sciences Canada info:eu-repo/semantics/openAccess restricted use Canadian Journal Of Earth Sciences (0008-4077) (Canadian Science Publishing, Nrc Research Press), 2012-12 , Vol. 49 , N. 12 , P. 1395-1415 text Publication info:eu-repo/semantics/article 2012 ftarchimer https://doi.org/10.1139/e2012-071 2021-09-23T20:22:11Z We have established a new plate kinematic model of the central and North Atlantic oceans between North America, Africa, Meseta, Iberia, Flemish Cap, and Galicia Bank from Late Triassic to Late Cretaceous to better understand the nature and timing of rifting of Nova Scotia and Morocco conjugate continental margins since Late Triassic. The maps of salt distributions at the Sinemurian-Pliensbachian limit (190 Ma; after salt deposition) and in middle Bajocian (170 Ma) show that an area of the Nova Scotia margin is devoid of allochthonous salt and that an area of similar size located oceanward of the West African Coast Magnetic Anomaly shows salt deposits, suggesting that a portion of the Nova Scotia margin with its overlying salt deposits could have been transferred onto the Moroccan side right after the formation of the conjugate East Coast Magnetic Anomaly and West African Coast Magnetic Anomaly. Seven paleogeographic maps, from Late Triassic to Late Cretaceous, are presented with structural elements and magnetic lineations. They show that the connection between the Central Atlantic and the Tethys, with an aborted rift between Iberia and North America ending in the north against the Flemish Cap - Galicia Bank dam, started to deepen at the end of the first rifting phase (190 Ma ago) after the rupture of the thinned continental crust. It is only during the Early Cretaceous, after the rupture of the Flemish Cap - Galicia Bank dam, that the deep connection around Iberia was finally established between the Central and North Atlantic, the Tethys, and the Bay of Biscay. Article in Journal/Newspaper North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Canadian Journal of Earth Sciences 49 12 1395 1415 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
We have established a new plate kinematic model of the central and North Atlantic oceans between North America, Africa, Meseta, Iberia, Flemish Cap, and Galicia Bank from Late Triassic to Late Cretaceous to better understand the nature and timing of rifting of Nova Scotia and Morocco conjugate continental margins since Late Triassic. The maps of salt distributions at the Sinemurian-Pliensbachian limit (190 Ma; after salt deposition) and in middle Bajocian (170 Ma) show that an area of the Nova Scotia margin is devoid of allochthonous salt and that an area of similar size located oceanward of the West African Coast Magnetic Anomaly shows salt deposits, suggesting that a portion of the Nova Scotia margin with its overlying salt deposits could have been transferred onto the Moroccan side right after the formation of the conjugate East Coast Magnetic Anomaly and West African Coast Magnetic Anomaly. Seven paleogeographic maps, from Late Triassic to Late Cretaceous, are presented with structural elements and magnetic lineations. They show that the connection between the Central Atlantic and the Tethys, with an aborted rift between Iberia and North America ending in the north against the Flemish Cap - Galicia Bank dam, started to deepen at the end of the first rifting phase (190 Ma ago) after the rupture of the thinned continental crust. It is only during the Early Cretaceous, after the rupture of the Flemish Cap - Galicia Bank dam, that the deep connection around Iberia was finally established between the Central and North Atlantic, the Tethys, and the Bay of Biscay. |
format |
Article in Journal/Newspaper |
author |
Sibuet, Jean-claude Rouzo, Stephane Srivastava, Shiri |
spellingShingle |
Sibuet, Jean-claude Rouzo, Stephane Srivastava, Shiri Plate tectonic reconstructions and paleogeographic maps of the central and North Atlantic oceans |
author_facet |
Sibuet, Jean-claude Rouzo, Stephane Srivastava, Shiri |
author_sort |
Sibuet, Jean-claude |
title |
Plate tectonic reconstructions and paleogeographic maps of the central and North Atlantic oceans |
title_short |
Plate tectonic reconstructions and paleogeographic maps of the central and North Atlantic oceans |
title_full |
Plate tectonic reconstructions and paleogeographic maps of the central and North Atlantic oceans |
title_fullStr |
Plate tectonic reconstructions and paleogeographic maps of the central and North Atlantic oceans |
title_full_unstemmed |
Plate tectonic reconstructions and paleogeographic maps of the central and North Atlantic oceans |
title_sort |
plate tectonic reconstructions and paleogeographic maps of the central and north atlantic oceans |
publisher |
Canadian Science Publishing, Nrc Research Press |
publishDate |
2012 |
url |
https://archimer.ifremer.fr/doc/00117/22805/20913.pdf https://doi.org/10.1139/e2012-071 https://archimer.ifremer.fr/doc/00117/22805/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Canadian Journal Of Earth Sciences (0008-4077) (Canadian Science Publishing, Nrc Research Press), 2012-12 , Vol. 49 , N. 12 , P. 1395-1415 |
op_relation |
https://archimer.ifremer.fr/doc/00117/22805/20913.pdf doi:10.1139/e2012-071 https://archimer.ifremer.fr/doc/00117/22805/ |
op_rights |
Tous droits réservés 2013 – Éditions Sciences Canada info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1139/e2012-071 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
49 |
container_issue |
12 |
container_start_page |
1395 |
op_container_end_page |
1415 |
_version_ |
1766123247742484480 |