Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous
The Cretaceous ocean was significantly different from its modern counterpart due to its ice-free condition. Deep waters were primarily sourced by evaporation at the ocean surface, although their circulation pattern and bottom-current dynamics have been largely unknown. Here we present a study of dee...
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Language: | English |
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2023
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Online Access: | https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX http://hdl.handle.net/1854/LU-01GW6QNP9N2MP6F4GXWYXA98XX https://doi.org/10.1130/g50886.1 https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX/file/01GW6QQY5Z0K0VXDTW42N22B2E |
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ftunivgent:oai:archive.ugent.be:01GW6QNP9N2MP6F4GXWYXA98XX 2024-02-11T10:06:59+01:00 Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous Liu, Shan Hernández-Molina, F. Javier Rodrigues, Sara Van Rooij, David 2023 application/pdf https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX http://hdl.handle.net/1854/LU-01GW6QNP9N2MP6F4GXWYXA98XX https://doi.org/10.1130/g50886.1 https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX/file/01GW6QQY5Z0K0VXDTW42N22B2E eng eng https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX http://hdl.handle.net/1854/LU-01GW6QNP9N2MP6F4GXWYXA98XX http://doi.org/10.1130/g50886.1 https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX/file/01GW6QQY5Z0K0VXDTW42N22B2E No license (in copyright) info:eu-repo/semantics/restrictedAccess GEOLOGY ISSN: 0091-7613 ISSN: 1943-2682 Earth and Environmental Sciences Geology journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2023 ftunivgent https://doi.org/10.1130/g50886.1 2024-01-24T23:07:11Z The Cretaceous ocean was significantly different from its modern counterpart due to its ice-free condition. Deep waters were primarily sourced by evaporation at the ocean surface, although their circulation pattern and bottom-current dynamics have been largely unknown. Here we present a study of deeply buried contourite drifts in the southern proto–Bay of Biscay to unravel the circulation pattern of the mid- and Late Cretaceous deep waters across the northeast Atlantic. The generation of plastered drifts (120 Ma to 100–90 Ma) and a mounded drift (100–90 Ma to 65 Ma) suggests that a significant change in deep-water source regions from the Tethys to the high-latitude region occurred at ca. 100–90 Ma. These contourite drifts were buried after ca. 65 Ma when the Cretaceous ocean circulation transitioned to the Cenozoic style in the northeast Atlantic. Tectonic configurations of the Pyrenean and the Equatorial Atlantic gateways were moreover tied to significant changes in northeast Atlantic deep-water circulation at ca. 100–90 and ca. 65 Ma. Northeastern Spain and France might be potential sites for the detection of Late Cretaceous contourite outcrops. These outcrops could have fundamental implications for the sedimentary facies and sequence model of contourites as well as shed light on the paleoceanography and paleoclimate of Cretaceous Earth. Article in Journal/Newspaper Northeast Atlantic Ghent University Academic Bibliography Geology 51 6 515 520 |
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Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences Geology |
spellingShingle |
Earth and Environmental Sciences Geology Liu, Shan Hernández-Molina, F. Javier Rodrigues, Sara Van Rooij, David Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous |
topic_facet |
Earth and Environmental Sciences Geology |
description |
The Cretaceous ocean was significantly different from its modern counterpart due to its ice-free condition. Deep waters were primarily sourced by evaporation at the ocean surface, although their circulation pattern and bottom-current dynamics have been largely unknown. Here we present a study of deeply buried contourite drifts in the southern proto–Bay of Biscay to unravel the circulation pattern of the mid- and Late Cretaceous deep waters across the northeast Atlantic. The generation of plastered drifts (120 Ma to 100–90 Ma) and a mounded drift (100–90 Ma to 65 Ma) suggests that a significant change in deep-water source regions from the Tethys to the high-latitude region occurred at ca. 100–90 Ma. These contourite drifts were buried after ca. 65 Ma when the Cretaceous ocean circulation transitioned to the Cenozoic style in the northeast Atlantic. Tectonic configurations of the Pyrenean and the Equatorial Atlantic gateways were moreover tied to significant changes in northeast Atlantic deep-water circulation at ca. 100–90 and ca. 65 Ma. Northeastern Spain and France might be potential sites for the detection of Late Cretaceous contourite outcrops. These outcrops could have fundamental implications for the sedimentary facies and sequence model of contourites as well as shed light on the paleoceanography and paleoclimate of Cretaceous Earth. |
format |
Article in Journal/Newspaper |
author |
Liu, Shan Hernández-Molina, F. Javier Rodrigues, Sara Van Rooij, David |
author_facet |
Liu, Shan Hernández-Molina, F. Javier Rodrigues, Sara Van Rooij, David |
author_sort |
Liu, Shan |
title |
Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous |
title_short |
Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous |
title_full |
Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous |
title_fullStr |
Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous |
title_full_unstemmed |
Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous |
title_sort |
deep-water circulation in the northeast atlantic during the mid- and late cretaceous |
publishDate |
2023 |
url |
https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX http://hdl.handle.net/1854/LU-01GW6QNP9N2MP6F4GXWYXA98XX https://doi.org/10.1130/g50886.1 https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX/file/01GW6QQY5Z0K0VXDTW42N22B2E |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
GEOLOGY ISSN: 0091-7613 ISSN: 1943-2682 |
op_relation |
https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX http://hdl.handle.net/1854/LU-01GW6QNP9N2MP6F4GXWYXA98XX http://doi.org/10.1130/g50886.1 https://biblio.ugent.be/publication/01GW6QNP9N2MP6F4GXWYXA98XX/file/01GW6QQY5Z0K0VXDTW42N22B2E |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1130/g50886.1 |
container_title |
Geology |
container_volume |
51 |
container_issue |
6 |
container_start_page |
515 |
op_container_end_page |
520 |
_version_ |
1790605039975268352 |