The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system

11 pages, 7 figures, supplementary material https://doi.org/10.1016/j.epsl.2020.116480

Detalhes bibliográficos
Autores: Prada, Manel, Ranero, César R., Sallarès, Valentí, Grevemeyer, Ingo, de Franco, Roberto, Gervasini, A., Zitellini, Nevio
Tipo de documento: artigo
Estado:Versión enviada para evaluación y publicación
Data de publicação:2020
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/222377
Acesso em linha:http://hdl.handle.net/10261/222377
Access Level:Acceso aberto
Palavra-chave:Calabrian Arc, Subduction
Mantle exhumation
Travel-time tomography
Wide-angle seismic data
Alpine orogeny
Mediterranean active arcs
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spelling The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction systemPrada, ManelRanero, César R.Sallarès, ValentíGrevemeyer, Ingode Franco, RobertoGervasini, A.Zitellini, NevioCalabrian Arc, SubductionMantle exhumationTravel-time tomographyWide-angle seismic dataAlpine orogenyMediterranean active arcs11 pages, 7 figures, supplementary material https://doi.org/10.1016/j.epsl.2020.116480The formation of Cenozoic mountain belts in the Mediterranean realm was preceded by tens of millions of years of subduction, forming volcanic arcs, and frontal contractional systems. In addition, subduction usually involves slab rollback and formation of oceanic backarcs. Although such structure must have influenced the orogeny of Mediterranean mountain belts, no active analog has been mapped with modern crustal-scale seismic methods. Here, we study the entire Calabrian subduction system to map the structure resulting from Tethys lithosphere subduction and slab rollback, in a process that must be akin to that operating during a phase of the formation of the Mediterranean orogenic belts. We present a crustal-scale cross section of the entire Calabrian subduction system obtained from on- and off-shore wide-angle seismic data. The 2D P-wave velocity section shows spatially abrupt (<5 km of profile distance) structural and petrological transitions from the Ionian sedimentary wedge and Calabrian arc, to the rifted NW Calabrian margin, where the Quaternary Aeolian arc is emplaced. The margin, then, transitions northwards into the Marsili backarc region, where exhumed mantle and localized volcanism occurred during its formation. This complex structure implies rapid temporal and spatial changes between magmatic and amagmatic processes, and between compressional and extensional regimes during the evolution of this subduction system. We find that some terranes involved in the Alpine orogeny share petrological and tectonic similarities with some domains of the Calabrian subduction system. Based on the results of this study we propose the Calabrian Arc system as an analog for the subduction structuration that preceded the formation of Alpine orogenic systemsThe CHIANTI survey was part of the HADES project funded by the Spanish MINECO (Ref # CTM2011-30400-C01 and CTM2011-30400-C02). [...] M. Prada is funded by the Beatriu de Pinós postdoctoral programme of the Government of Catalonia's Secretariat for Universities and Research of the Ministry of Economy and Knowledge (Ref # 2017BP00170)With the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI)ElsevierMinisterio de Economía y Competitividad (España)Generalitat de CatalunyaAgencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionhttp://hdl.handle.net/10261/222377reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.epsl.2020.116480Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2223772026-05-22T06:33:51Z
dc.title.none.fl_str_mv The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system
title The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system
spellingShingle The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system
Prada, Manel
Calabrian Arc, Subduction
Mantle exhumation
Travel-time tomography
Wide-angle seismic data
Alpine orogeny
Mediterranean active arcs
title_short The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system
title_full The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system
title_fullStr The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system
title_full_unstemmed The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system
title_sort The structure of Mediterranean arcs: New insights from the Calabrian Arc subduction system
dc.creator.none.fl_str_mv Prada, Manel
Ranero, César R.
Sallarès, Valentí
Grevemeyer, Ingo
de Franco, Roberto
Gervasini, A.
Zitellini, Nevio
author Prada, Manel
author_facet Prada, Manel
Ranero, César R.
Sallarès, Valentí
Grevemeyer, Ingo
de Franco, Roberto
Gervasini, A.
Zitellini, Nevio
author_role author
author2 Ranero, César R.
Sallarès, Valentí
Grevemeyer, Ingo
de Franco, Roberto
Gervasini, A.
Zitellini, Nevio
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Generalitat de Catalunya
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Calabrian Arc, Subduction
Mantle exhumation
Travel-time tomography
Wide-angle seismic data
Alpine orogeny
Mediterranean active arcs
topic Calabrian Arc, Subduction
Mantle exhumation
Travel-time tomography
Wide-angle seismic data
Alpine orogeny
Mediterranean active arcs
description 11 pages, 7 figures, supplementary material https://doi.org/10.1016/j.epsl.2020.116480
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/222377
url http://hdl.handle.net/10261/222377
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.epsl.2020.116480
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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