The effects of small-scale convection in the shallow lithosphere of the North Atlantic
Curie point depth can be used as a proxy for plate temperatures. Data from the North Atlantic (10°-50°N) are used here to determine if the observed oscillations and patterns in Curie depths could be a subproduct of small-scale thermal instabilities arising at the bottom of the lithospheric plates. O...
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Language: | English |
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ftconicet:oai:ri.conicet.gov.ar:11336/149019 2023-10-09T21:53:52+02:00 The effects of small-scale convection in the shallow lithosphere of the North Atlantic Likerman, Jeremias Zlotnik, Sergio Li, Chun Feng application/pdf http://hdl.handle.net/11336/149019 eng eng Wiley Blackwell Publishing, Inc info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/gji/article/227/3/1512/6325542 info:eu-repo/semantics/altIdentifier/doi/10.1093/gji/ggab286 http://hdl.handle.net/11336/149019 Likerman, Jeremias; Zlotnik, Sergio; Li, Chun Feng; The effects of small-scale convection in the shallow lithosphere of the North Atlantic; Wiley Blackwell Publishing, Inc; Geophysical Journal International; 227; 3; 7-2021; 1512-1522 0956-540X CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ATLANTIC OCEAN DYNAMICS: CONVECTION CURRENTS AND MANTLE PLUMES MAGNETIC ANOMALIES: MODELLING AND INTERPRETATION MANTLE PROCESSES MID-OCEAN RIDGE PROCESSES NUMERICAL MODELLING https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1093/gji/ggab286 2023-09-24T19:35:12Z Curie point depth can be used as a proxy for plate temperatures. Data from the North Atlantic (10°-50°N) are used here to determine if the observed oscillations and patterns in Curie depths could be a subproduct of small-scale thermal instabilities arising at the bottom of the lithospheric plates. Our numerical models suggest that small-scale convection (SSC) cells could produce thermal perturbations at isotherms as low as the Curie point. These results are compatible with North Atlantic observations in terms of wavelengths (150-300 km), amplitudes (∼4 km) and orientations of the instabilities. Observed Curie-point depth oscillations before the onset (70 to 90 Myr) of SSC could also be linked to other different processes. We suggest that, in the case of the North Atlantic lithosphere, the spreading rate variation and the melt and upwelling could be intricately linked and cause a different pattern of SSC. Fil: Likerman, Jeremias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Zlotnik, Sergio. Universidad Politécnica de Catalunya; España Fil: Li, Chun Feng. Institute Of Marine Geology And Resources; China Article in Journal/Newspaper North Atlantic CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Pablo ENVELOPE(-63.717,-63.717,-64.283,-64.283) Curie Point ENVELOPE(-63.483,-63.483,-64.833,-64.833) Geophysical Journal International 227 3 1512 1522 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ATLANTIC OCEAN DYNAMICS: CONVECTION CURRENTS AND MANTLE PLUMES MAGNETIC ANOMALIES: MODELLING AND INTERPRETATION MANTLE PROCESSES MID-OCEAN RIDGE PROCESSES NUMERICAL MODELLING https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
ATLANTIC OCEAN DYNAMICS: CONVECTION CURRENTS AND MANTLE PLUMES MAGNETIC ANOMALIES: MODELLING AND INTERPRETATION MANTLE PROCESSES MID-OCEAN RIDGE PROCESSES NUMERICAL MODELLING https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Likerman, Jeremias Zlotnik, Sergio Li, Chun Feng The effects of small-scale convection in the shallow lithosphere of the North Atlantic |
topic_facet |
ATLANTIC OCEAN DYNAMICS: CONVECTION CURRENTS AND MANTLE PLUMES MAGNETIC ANOMALIES: MODELLING AND INTERPRETATION MANTLE PROCESSES MID-OCEAN RIDGE PROCESSES NUMERICAL MODELLING https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Curie point depth can be used as a proxy for plate temperatures. Data from the North Atlantic (10°-50°N) are used here to determine if the observed oscillations and patterns in Curie depths could be a subproduct of small-scale thermal instabilities arising at the bottom of the lithospheric plates. Our numerical models suggest that small-scale convection (SSC) cells could produce thermal perturbations at isotherms as low as the Curie point. These results are compatible with North Atlantic observations in terms of wavelengths (150-300 km), amplitudes (∼4 km) and orientations of the instabilities. Observed Curie-point depth oscillations before the onset (70 to 90 Myr) of SSC could also be linked to other different processes. We suggest that, in the case of the North Atlantic lithosphere, the spreading rate variation and the melt and upwelling could be intricately linked and cause a different pattern of SSC. Fil: Likerman, Jeremias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Zlotnik, Sergio. Universidad Politécnica de Catalunya; España Fil: Li, Chun Feng. Institute Of Marine Geology And Resources; China |
format |
Article in Journal/Newspaper |
author |
Likerman, Jeremias Zlotnik, Sergio Li, Chun Feng |
author_facet |
Likerman, Jeremias Zlotnik, Sergio Li, Chun Feng |
author_sort |
Likerman, Jeremias |
title |
The effects of small-scale convection in the shallow lithosphere of the North Atlantic |
title_short |
The effects of small-scale convection in the shallow lithosphere of the North Atlantic |
title_full |
The effects of small-scale convection in the shallow lithosphere of the North Atlantic |
title_fullStr |
The effects of small-scale convection in the shallow lithosphere of the North Atlantic |
title_full_unstemmed |
The effects of small-scale convection in the shallow lithosphere of the North Atlantic |
title_sort |
effects of small-scale convection in the shallow lithosphere of the north atlantic |
publisher |
Wiley Blackwell Publishing, Inc |
url |
http://hdl.handle.net/11336/149019 |
long_lat |
ENVELOPE(-63.717,-63.717,-64.283,-64.283) ENVELOPE(-63.483,-63.483,-64.833,-64.833) |
geographic |
Argentina Pablo Curie Point |
geographic_facet |
Argentina Pablo Curie Point |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/gji/article/227/3/1512/6325542 info:eu-repo/semantics/altIdentifier/doi/10.1093/gji/ggab286 http://hdl.handle.net/11336/149019 Likerman, Jeremias; Zlotnik, Sergio; Li, Chun Feng; The effects of small-scale convection in the shallow lithosphere of the North Atlantic; Wiley Blackwell Publishing, Inc; Geophysical Journal International; 227; 3; 7-2021; 1512-1522 0956-540X CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1093/gji/ggab286 |
container_title |
Geophysical Journal International |
container_volume |
227 |
container_issue |
3 |
container_start_page |
1512 |
op_container_end_page |
1522 |
_version_ |
1779317213330669568 |