Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case

Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case

25 pages, 14 figures, supporting information https://doi.org/10.1111/bre.12595.-- The data that support the findings of this study are available in the supplementary material of this article

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Bibliographic Details
Main Authors: Miró, Jordi, Manatschal, Gianreto, Cadenas, Patricia, Muñoz, Josep A.
Other Authors: Agencia Estatal de Investigación (España)
Format: artículo biblioteca
Language:English
Published: European Association of Geoscientists and Engineers 2021-12
Subjects:Basque– Cantabrian Pyrenees, Hyperextended rift system, Multistage, Polyphase, Reactivation, Rift- inheritance, Thin- versus thick- skin,
Online Access:http://hdl.handle.net/10261/256607
http://dx.doi.org/10.13039/501100011033
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spelling dig-icm-es-10261-2566072022-01-31T17:26:32Z Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case Miró, Jordi Manatschal, Gianreto Cadenas, Patricia Muñoz, Josep A. Agencia Estatal de Investigación (España) Basque– Cantabrian Pyrenees Hyperextended rift system Multistage Polyphase Reactivation Rift- inheritance Thin- versus thick- skin 25 pages, 14 figures, supporting information https://doi.org/10.1111/bre.12595.-- The data that support the findings of this study are available in the supplementary material of this article This contribution investigates the role of a hyperextended rift system in the formation of the Basque–Cantabrian Pyrenees by discussing their present-day architecture as well as the inherited rift template. Moreover, this work attempts to decipher the onset of reactivation of a hyperextended system and to discuss the related processes during collision. To carry out this study, two regional, crustal-scale cross-sections are presented that provide geological and geophysical information and interpretations across the Central and Western Basque–Cantabrian Pyrenees. Moreover, the two sections are restored back to the Cenomanian and Barremian, corresponding to the end of two independent rift stages respectively. The two sections document different structural styles observed along the orogenic belt. The Central section, involving the Iberian and European plates, shows a thin-skinned structural style, where the Upper Triassic salt acted as a decoupling level between the sedimentary cover and the underlying basement during both extension and reactivation. The Western section, by contrast, crosses only the Iberian plate (i.e., intra-plate section) and displays a hybrid situation showing both thin- and thick-skinned structural styles that were conditioned by the irregular distribution of Triassic salt. Extensional deformation was localised in the north (i.e., Bay of Biscay) and less important in the south. Despite compressional reactivation, the northern part of the Western section preserves its rift template, which provides key insights to restore the internal part of the Central section. In contrast to the Western section, the Central section shows stacked depocenters, resulting from overprinted Mesozoic rift events that had a first order control on the subsequent reactivation. This study corroborates the importance of rift inheritance during the onset of convergence by reactivating the most distal and weak part of the rift system (i.e., serpentinised mantle) before starting the collision phase. A key learning is that the understanding of the nature and distribution of decoupling levels at a crustal scale is fundamental to reconstruct the structural evolution during the formation and reactivation of a hyperextended rift system This work was supported by the OROGEN Project With the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S) Peer reviewed 2021-12-21T09:20:56Z 2021-12-21T09:20:56Z 2021-12 artículo http://purl.org/coar/resource_type/c_6501 Basin Research 33(6): 3077-3101 (2021) 0950-091X CEX2019-000928-S http://hdl.handle.net/10261/256607 10.1111/bre.12595 1365-2117 http://dx.doi.org/10.13039/501100011033 en Publisher's version https://doi.org/10.1111/bre.12595 Sí open European Association of Geoscientists and Engineers
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Basque– Cantabrian Pyrenees
Hyperextended rift system
Multistage
Polyphase
Reactivation
Rift- inheritance
Thin- versus thick- skin
Basque– Cantabrian Pyrenees
Hyperextended rift system
Multistage
Polyphase
Reactivation
Rift- inheritance
Thin- versus thick- skin
spellingShingle Basque– Cantabrian Pyrenees
Hyperextended rift system
Multistage
Polyphase
Reactivation
Rift- inheritance
Thin- versus thick- skin
Basque– Cantabrian Pyrenees
Hyperextended rift system
Multistage
Polyphase
Reactivation
Rift- inheritance
Thin- versus thick- skin
Miró, Jordi
Manatschal, Gianreto
Cadenas, Patricia
Muñoz, Josep A.
Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case
description 25 pages, 14 figures, supporting information https://doi.org/10.1111/bre.12595.-- The data that support the findings of this study are available in the supplementary material of this article
author2 Agencia Estatal de Investigación (España)
author_facet Agencia Estatal de Investigación (España)
Miró, Jordi
Manatschal, Gianreto
Cadenas, Patricia
Muñoz, Josep A.
format artículo
topic_facet Basque– Cantabrian Pyrenees
Hyperextended rift system
Multistage
Polyphase
Reactivation
Rift- inheritance
Thin- versus thick- skin
author Miró, Jordi
Manatschal, Gianreto
Cadenas, Patricia
Muñoz, Josep A.
author_sort Miró, Jordi
title Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case
title_short Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case
title_full Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case
title_fullStr Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case
title_full_unstemmed Reactivation of a hyperextended rift system: The Basque-Cantabrian Pyrenees case
title_sort reactivation of a hyperextended rift system: the basque-cantabrian pyrenees case
publisher European Association of Geoscientists and Engineers
publishDate 2021-12
url http://hdl.handle.net/10261/256607
http://dx.doi.org/10.13039/501100011033
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AT manatschalgianreto reactivationofahyperextendedriftsystemthebasquecantabrianpyreneescase
AT cadenaspatricia reactivationofahyperextendedriftsystemthebasquecantabrianpyreneescase
AT munozjosepa reactivationofahyperextendedriftsystemthebasquecantabrianpyreneescase
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