ROLE OF THE CRUSTAL DETACHEMENTS DURING RIFTING, INSIGHTS FROM LABRADOR SEA
The Labrador Sea is part of the Atlantic rift system which opens during Early Cretaceous times in the intracontinental domain. The rifting stage continues and generates an expansion center, with the establishments of an oceanic ridge during Late Cretaceous-Paleocene times. The rifting was asymmetric...
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ftzenodo:oai:zenodo.org:4686427 2023-05-15T17:05:59+02:00 ROLE OF THE CRUSTAL DETACHEMENTS DURING RIFTING, INSIGHTS FROM LABRADOR SEA DEDIU, M. -C. MUNTEANU, I. DINU, C. 2020-12-31 https://zenodo.org/record/4686427 https://doi.org/10.5281/zenodo.4686427 eng eng doi:10.5281/zenodo.4686426 https://zenodo.org/record/4686427 https://doi.org/10.5281/zenodo.4686427 oai:zenodo.org:4686427 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Geo-Eco-Marina 26 (2020) 119-125 Labrador Sea detachment rifting S shape reflectors hyperextended info:eu-repo/semantics/article publication-article 2020 ftzenodo https://doi.org/10.5281/zenodo.468642710.5281/zenodo.4686426 2023-03-11T02:39:37Z The Labrador Sea is part of the Atlantic rift system which opens during Early Cretaceous times in the intracontinental domain. The rifting stage continues and generates an expansion center, with the establishments of an oceanic ridge during Late Cretaceous-Paleocene times. The rifting was asymmetric with a gradual propagation northward. The Cretaceous stretching and thinning of the continental crust led to the development of the transitional domain, with a controversial origin either thinned continental or oceanic. With this study, we bring new evidences for the presence of exhumed upper mantle in the transition domain based on geometry of the detachment faults, typical āSā shape, and we emphasize the role of the detachments in the rifting of continental crust and its ultimate break-up. We observed the lateral change, from South to North, of the continental to oceanic crust transition, from a step-up to a step-down. Based on, we suggest that it might reflect the changes in the upper versus lower plate position of the Labrador Sea, a change accommodated across the Snorri Fracture Zone. Article in Journal/Newspaper Labrador Sea Zenodo |
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language |
English |
topic |
Labrador Sea detachment rifting S shape reflectors hyperextended |
spellingShingle |
Labrador Sea detachment rifting S shape reflectors hyperextended DEDIU, M. -C. MUNTEANU, I. DINU, C. ROLE OF THE CRUSTAL DETACHEMENTS DURING RIFTING, INSIGHTS FROM LABRADOR SEA |
topic_facet |
Labrador Sea detachment rifting S shape reflectors hyperextended |
description |
The Labrador Sea is part of the Atlantic rift system which opens during Early Cretaceous times in the intracontinental domain. The rifting stage continues and generates an expansion center, with the establishments of an oceanic ridge during Late Cretaceous-Paleocene times. The rifting was asymmetric with a gradual propagation northward. The Cretaceous stretching and thinning of the continental crust led to the development of the transitional domain, with a controversial origin either thinned continental or oceanic. With this study, we bring new evidences for the presence of exhumed upper mantle in the transition domain based on geometry of the detachment faults, typical āSā shape, and we emphasize the role of the detachments in the rifting of continental crust and its ultimate break-up. We observed the lateral change, from South to North, of the continental to oceanic crust transition, from a step-up to a step-down. Based on, we suggest that it might reflect the changes in the upper versus lower plate position of the Labrador Sea, a change accommodated across the Snorri Fracture Zone. |
format |
Article in Journal/Newspaper |
author |
DEDIU, M. -C. MUNTEANU, I. DINU, C. |
author_facet |
DEDIU, M. -C. MUNTEANU, I. DINU, C. |
author_sort |
DEDIU, M. -C. |
title |
ROLE OF THE CRUSTAL DETACHEMENTS DURING RIFTING, INSIGHTS FROM LABRADOR SEA |
title_short |
ROLE OF THE CRUSTAL DETACHEMENTS DURING RIFTING, INSIGHTS FROM LABRADOR SEA |
title_full |
ROLE OF THE CRUSTAL DETACHEMENTS DURING RIFTING, INSIGHTS FROM LABRADOR SEA |
title_fullStr |
ROLE OF THE CRUSTAL DETACHEMENTS DURING RIFTING, INSIGHTS FROM LABRADOR SEA |
title_full_unstemmed |
ROLE OF THE CRUSTAL DETACHEMENTS DURING RIFTING, INSIGHTS FROM LABRADOR SEA |
title_sort |
role of the crustal detachements during rifting, insights from labrador sea |
publishDate |
2020 |
url |
https://zenodo.org/record/4686427 https://doi.org/10.5281/zenodo.4686427 |
genre |
Labrador Sea |
genre_facet |
Labrador Sea |
op_source |
Geo-Eco-Marina 26 (2020) 119-125 |
op_relation |
doi:10.5281/zenodo.4686426 https://zenodo.org/record/4686427 https://doi.org/10.5281/zenodo.4686427 oai:zenodo.org:4686427 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.468642710.5281/zenodo.4686426 |
_version_ |
1766060874475241472 |