Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera

The Western Mediterranean has undergone complex subduction and collision between the African and Iberian plates, influenced by slab segmentation and melt generation. Despite numerous studies aimed at understanding these connections, the style of subduction remains controversial. Utilizing a compilat...

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Authors: Pedrera, A., Díaz-Alvarado, Juan, Azor, Antonio, Folguera, A., González-Menéndez, L., García-Senz, Jesús, Hernáiz Huerta, Pedro Pablo, Ruiz Constán, Ana, Marín-Lechado, Carlos, Ramos, Adrià, López-Mir, B., Rodríguez, Carmen, Jiménez-Borrego, Roberto, Hidas, Károly
Format: article
Status:Published version
Publication Date:2025
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/403731
Online Access:http://hdl.handle.net/10261/403731
Access Level:Open access
Keyword:Betic Cordillera
Gibraltar Arc
Mantle upwelling
Rift inheritance
Slab tearing
Subduction zone
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spelling Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic CordilleraPedrera, A.Díaz-Alvarado, JuanAzor, AntonioFolguera, A.González-Menéndez, L.García-Senz, JesúsHernáiz Huerta, Pedro PabloRuiz Constán, AnaMarín-Lechado, CarlosRamos, AdriàLópez-Mir, B.Rodríguez, CarmenJiménez-Borrego, RobertoHidas, KárolyBetic CordilleraGibraltar ArcMantle upwellingRift inheritanceSlab tearingSubduction zoneThe Western Mediterranean has undergone complex subduction and collision between the African and Iberian plates, influenced by slab segmentation and melt generation. Despite numerous studies aimed at understanding these connections, the style of subduction remains controversial. Utilizing a compilation of geophysical data and a new map of magmatic suites along the Western Betic Cordillera, along with geochemical and geochronological analyses, this paper presents a 3D reconstruction of a segmented subducting slab beneath the Gibraltar Arc, with a focus on the nature and timing of slab tearing and magmatism. Results suggest that magmatism was coeval with the retreating of subduction and slab tearing along the Antequera Fault Zone, a reactivated Mesozoic rift transfer fault. Slab tearing facilitated asthenospheric upwelling, triggering a localized thermal pulse in the upper plate during the Early Miocene. Zircon U–Pb geochronology witnesses this thermal event with the formation, emplacement, and crystallization of leucogranitic melts at low-pressure conditions, featuring both simple zircons (sometimes with inherited cores) and complex zircons (with rim dissolution and regrowth in host metamorphic units). Our findings demonstrate how inherited rift-related structures can drive slab tearing and asthenospheric upwelling, shaping the spatial and temporal patterns of magmatism and high-temperature metamorphism in complex subduction systems.This is a work by the Tectonic Processes and GeoResources Lab (IGME-CSIC) supported by the project by the MCIN/ AEI/https://doi.org/10.13039/501100011033 /. FEDER \u2018Una manera de hacer Europa\u2019 (REViSE-Betics-PID2020-119651RB-I00\u00A0and H2RISE-PID2024-161600OB-I00).Peer reviewedNature Publishing GroupMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2025202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/403731reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-119651RB-I00info:eu-repo/grantAgreement/MCIN//H2RISE-PID2024-161600OB-I00https://doi.org/10.1038/s41598-025-13168-zSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4037312026-05-22T06:33:51Z
dc.title.none.fl_str_mv Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera
title Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera
spellingShingle Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera
Pedrera, A.
Betic Cordillera
Gibraltar Arc
Mantle upwelling
Rift inheritance
Slab tearing
Subduction zone
title_short Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera
title_full Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera
title_fullStr Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera
title_full_unstemmed Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera
title_sort Evidence of slab tearing on an inherited Mesozoic rift transfer fault in the Betic Cordillera
dc.creator.none.fl_str_mv Pedrera, A.
Díaz-Alvarado, Juan
Azor, Antonio
Folguera, A.
González-Menéndez, L.
García-Senz, Jesús
Hernáiz Huerta, Pedro Pablo
Ruiz Constán, Ana
Marín-Lechado, Carlos
Ramos, Adrià
López-Mir, B.
Rodríguez, Carmen
Jiménez-Borrego, Roberto
Hidas, Károly
author Pedrera, A.
author_facet Pedrera, A.
Díaz-Alvarado, Juan
Azor, Antonio
Folguera, A.
González-Menéndez, L.
García-Senz, Jesús
Hernáiz Huerta, Pedro Pablo
Ruiz Constán, Ana
Marín-Lechado, Carlos
Ramos, Adrià
López-Mir, B.
Rodríguez, Carmen
Jiménez-Borrego, Roberto
Hidas, Károly
author_role author
author2 Díaz-Alvarado, Juan
Azor, Antonio
Folguera, A.
González-Menéndez, L.
García-Senz, Jesús
Hernáiz Huerta, Pedro Pablo
Ruiz Constán, Ana
Marín-Lechado, Carlos
Ramos, Adrià
López-Mir, B.
Rodríguez, Carmen
Jiménez-Borrego, Roberto
Hidas, Károly
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Betic Cordillera
Gibraltar Arc
Mantle upwelling
Rift inheritance
Slab tearing
Subduction zone
topic Betic Cordillera
Gibraltar Arc
Mantle upwelling
Rift inheritance
Slab tearing
Subduction zone
description The Western Mediterranean has undergone complex subduction and collision between the African and Iberian plates, influenced by slab segmentation and melt generation. Despite numerous studies aimed at understanding these connections, the style of subduction remains controversial. Utilizing a compilation of geophysical data and a new map of magmatic suites along the Western Betic Cordillera, along with geochemical and geochronological analyses, this paper presents a 3D reconstruction of a segmented subducting slab beneath the Gibraltar Arc, with a focus on the nature and timing of slab tearing and magmatism. Results suggest that magmatism was coeval with the retreating of subduction and slab tearing along the Antequera Fault Zone, a reactivated Mesozoic rift transfer fault. Slab tearing facilitated asthenospheric upwelling, triggering a localized thermal pulse in the upper plate during the Early Miocene. Zircon U–Pb geochronology witnesses this thermal event with the formation, emplacement, and crystallization of leucogranitic melts at low-pressure conditions, featuring both simple zircons (sometimes with inherited cores) and complex zircons (with rim dissolution and regrowth in host metamorphic units). Our findings demonstrate how inherited rift-related structures can drive slab tearing and asthenospheric upwelling, shaping the spatial and temporal patterns of magmatism and high-temperature metamorphism in complex subduction systems.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/403731
url http://hdl.handle.net/10261/403731
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-119651RB-I00
info:eu-repo/grantAgreement/MCIN//H2RISE-PID2024-161600OB-I00
https://doi.org/10.1038/s41598-025-13168-z
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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