Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere
Observations from rifted margins reveal that significant structural and crustal variability develops through the process of continental extension and breakup. While a clear link exists between distinct margin structural domains and specific phases of rifting, the origin of strong segmentation along...
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ftpubmed:oai:pubmedcentral.nih.gov:8329282 2023-05-15T17:06:09+02:00 Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere Gouiza, M. Naliboff, J. 2021-08-02 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8329282/ http://www.ncbi.nlm.nih.gov/pubmed/34341352 https://doi.org/10.1038/s41467-021-24945-5 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8329282/ http://www.ncbi.nlm.nih.gov/pubmed/34341352 http://dx.doi.org/10.1038/s41467-021-24945-5 © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Nat Commun Article Text 2021 ftpubmed https://doi.org/10.1038/s41467-021-24945-5 2021-08-15T00:28:02Z Observations from rifted margins reveal that significant structural and crustal variability develops through the process of continental extension and breakup. While a clear link exists between distinct margin structural domains and specific phases of rifting, the origin of strong segmentation along the length of margins remains relatively ambiguous and may reflect multiple competing factors. Given that rifting frequently initiates on heterogenous basements with a complex tectonic history, the role of structural inheritance and shear zone reactivation is frequently examined. However, the link between large-scale variations in lithospheric structure and rheology and 3-D rifted margin geometries remains relatively unconstrained. Here, we use 3-D thermo-mechanical simulations of continental rifting, constrained by observations from the Labrador Sea, to unravel the effects of inherited variable lithospheric properties on margin segmentation. The modelling results demonstrate that variations in the initial crustal and lithospheric thickness, composition, and rheology produce sharp gradients in rifted margin width, the timing of breakup and its magmatic budget, leading to strong margin segmentation. Text Labrador Sea PubMed Central (PMC) Nature Communications 12 1 |
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Article Gouiza, M. Naliboff, J. Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere |
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Observations from rifted margins reveal that significant structural and crustal variability develops through the process of continental extension and breakup. While a clear link exists between distinct margin structural domains and specific phases of rifting, the origin of strong segmentation along the length of margins remains relatively ambiguous and may reflect multiple competing factors. Given that rifting frequently initiates on heterogenous basements with a complex tectonic history, the role of structural inheritance and shear zone reactivation is frequently examined. However, the link between large-scale variations in lithospheric structure and rheology and 3-D rifted margin geometries remains relatively unconstrained. Here, we use 3-D thermo-mechanical simulations of continental rifting, constrained by observations from the Labrador Sea, to unravel the effects of inherited variable lithospheric properties on margin segmentation. The modelling results demonstrate that variations in the initial crustal and lithospheric thickness, composition, and rheology produce sharp gradients in rifted margin width, the timing of breakup and its magmatic budget, leading to strong margin segmentation. |
format |
Text |
author |
Gouiza, M. Naliboff, J. |
author_facet |
Gouiza, M. Naliboff, J. |
author_sort |
Gouiza, M. |
title |
Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere |
title_short |
Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere |
title_full |
Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere |
title_fullStr |
Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere |
title_full_unstemmed |
Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere |
title_sort |
rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere |
publisher |
Nature Publishing Group UK |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8329282/ http://www.ncbi.nlm.nih.gov/pubmed/34341352 https://doi.org/10.1038/s41467-021-24945-5 |
genre |
Labrador Sea |
genre_facet |
Labrador Sea |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8329282/ http://www.ncbi.nlm.nih.gov/pubmed/34341352 http://dx.doi.org/10.1038/s41467-021-24945-5 |
op_rights |
© The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
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https://doi.org/10.1038/s41467-021-24945-5 |
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Nature Communications |
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12 |
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