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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ftleedsuniv:oai:eprints.whiterose.ac.uk:182511 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 text https://eprints.whiterose.ac.uk/182511/ https://eprints.whiterose.ac.uk/182511/6/s41467-021-24945-5.pdf en eng Nature Research https://eprints.whiterose.ac.uk/182511/6/s41467-021-24945-5.pdf Gouiza, M orcid.org/0000-0001-5438-2698 and Naliboff, J (2021) Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere. Nature Communications, 12 (1). 4653. ISSN 2041-1723 cc_by_4 CC-BY Article NonPeerReviewed 2021 ftleedsuniv 2023-01-30T22:44:01Z 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. Article in Journal/Newspaper Labrador Sea White Rose Research Online (Universities of Leeds, Sheffield & York) |
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Open Polar |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
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ftleedsuniv |
language |
English |
description |
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 |
Article in Journal/Newspaper |
author |
Gouiza, M Naliboff, J |
spellingShingle |
Gouiza, M Naliboff, J Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere |
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 Research |
publishDate |
2021 |
url |
https://eprints.whiterose.ac.uk/182511/ https://eprints.whiterose.ac.uk/182511/6/s41467-021-24945-5.pdf |
genre |
Labrador Sea |
genre_facet |
Labrador Sea |
op_relation |
https://eprints.whiterose.ac.uk/182511/6/s41467-021-24945-5.pdf Gouiza, M orcid.org/0000-0001-5438-2698 and Naliboff, J (2021) Rheological inheritance controls the formation of segmented rifted margins in cratonic lithosphere. Nature Communications, 12 (1). 4653. ISSN 2041-1723 |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
_version_ |
1766061156078714880 |