Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems

This study presents a geophysical-geochemical integrated model of the thermochemical structure of the lithosphere and uppermost mantle along a transect from the Northern Tyrrhenian Sea to the Pannonian Basin, crossing the northern Apennines, the Adriatic Sea, and the Dinarides fold-thrust belt. The...

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Autores: Zhang, Wentao, Jimenez-Munt, Ivone, Torné, Montserrat, Vergés Masip, Jaume, Bravo-Gutiérrez, Estefanía, Negredo, Ana M., Carminati, Eugenio, García-Castellanos, Daniel, Fernández Ortiga, Manel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/305208
Acceso en línea:http://hdl.handle.net/10261/305208
Access Level:acceso abierto
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spelling Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systemsZhang, WentaoJimenez-Munt, IvoneTorné, MontserratVergés Masip, JaumeBravo-Gutiérrez, EstefaníaNegredo, Ana M.Carminati, EugenioGarcía-Castellanos, DanielFernández Ortiga, ManelThis study presents a geophysical-geochemical integrated model of the thermochemical structure of the lithosphere and uppermost mantle along a transect from the Northern Tyrrhenian Sea to the Pannonian Basin, crossing the northern Apennines, the Adriatic Sea, and the Dinarides fold-thrust belt. The objectives are to image crustal thickness variations and characterize the different mantle domains. In addition, we evaluate the topographic response of opposed subductions along this transect and discuss their implications in the evolution of the region. Results show a more complex structure and slightly higher average crustal density of Adria compared to Tisza microplate. Below the Tyrrhenian Sea and Western Apennines, Moho lays at <25 km depth while along the Eastern Apennines it is as deep as 55 km. The modeled lithosphere-asthenosphere boundary (LAB) below the Tyrrhenian Sea and Pannonian Basin is flat lying at ∼75 and 90 km, respectively. Below the External Apennines and Dinarides the LAB deepens to 150 km, slightly shallowing toward the Adriatic foreland basin at 125 km depth. Our results are consistent with the presence of two mantle wedges, resulting from the rollback of the Ligurian-Tethys and Vardar-NeoTethys oceanic slabs followed by continental mantle delamination of the eastern and western distal margins of Adria. These two opposed slabs beneath the Apennines and Dinarides are modeled as two thermal sublithospheric anomalies of −200°C. Most of the elevation along the profile is under thermal isostasy and departures can be explained by regional isostasy with an elastic thickness between 10 and 20 km.This work is funded by GeoCAM (PGC2018-095154-B-I00) from the Spanish Government, the Generalitat de Catalunya Grant (AGAUR 2017 SGR 847) and ALORBE (PIE-CSIC-202030E10). WZ is supported by the China Scholarship Council (CSC-201904910470) and EBG by the Spanish Government Grant PRE2019-090524.Peer reviewedAmerican Geophysical UnionMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)Generalitat de CatalunyaConsejo Superior de Investigaciones Científicas (España)China Scholarship CouncilConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2023202320222023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/305208reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-095154-B-I00Zhang, Wentao; Jimenez-Munt, Ivone; Torné, Montserrat; Vergés, Jaume; Bravo-Gutiérrez, Estefanía; Negredo, Ana M.; Carminati, Eugenio; García-Castellanos, Daniel; Fernández, Manel; 2022; Geophysical-petrological model for bidirectional mantle delamination of the Adria microplate beneath the northern Apennines and Dinarides orogenic systems [Dataset]; DIGITAL.CSIC; http://hdl.handle.net/10261/280680http://dx.doi.org/10.1029/2022JB024800Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3052082026-05-22T06:33:51Z
dc.title.none.fl_str_mv Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems
title Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems
spellingShingle Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems
Zhang, Wentao
title_short Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems
title_full Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems
title_fullStr Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems
title_full_unstemmed Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems
title_sort Geophysical-petrological model for bidirectional mantle delamination of the adria microplate beneath the northern apennines and dinarides orogenic systems
dc.creator.none.fl_str_mv Zhang, Wentao
Jimenez-Munt, Ivone
Torné, Montserrat
Vergés Masip, Jaume
Bravo-Gutiérrez, Estefanía
Negredo, Ana M.
Carminati, Eugenio
García-Castellanos, Daniel
Fernández Ortiga, Manel
author Zhang, Wentao
author_facet Zhang, Wentao
Jimenez-Munt, Ivone
Torné, Montserrat
Vergés Masip, Jaume
Bravo-Gutiérrez, Estefanía
Negredo, Ana M.
Carminati, Eugenio
García-Castellanos, Daniel
Fernández Ortiga, Manel
author_role author
author2 Jimenez-Munt, Ivone
Torné, Montserrat
Vergés Masip, Jaume
Bravo-Gutiérrez, Estefanía
Negredo, Ana M.
Carminati, Eugenio
García-Castellanos, Daniel
Fernández Ortiga, Manel
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
Generalitat de Catalunya
Consejo Superior de Investigaciones Científicas (España)
China Scholarship Council
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description This study presents a geophysical-geochemical integrated model of the thermochemical structure of the lithosphere and uppermost mantle along a transect from the Northern Tyrrhenian Sea to the Pannonian Basin, crossing the northern Apennines, the Adriatic Sea, and the Dinarides fold-thrust belt. The objectives are to image crustal thickness variations and characterize the different mantle domains. In addition, we evaluate the topographic response of opposed subductions along this transect and discuss their implications in the evolution of the region. Results show a more complex structure and slightly higher average crustal density of Adria compared to Tisza microplate. Below the Tyrrhenian Sea and Western Apennines, Moho lays at <25 km depth while along the Eastern Apennines it is as deep as 55 km. The modeled lithosphere-asthenosphere boundary (LAB) below the Tyrrhenian Sea and Pannonian Basin is flat lying at ∼75 and 90 km, respectively. Below the External Apennines and Dinarides the LAB deepens to 150 km, slightly shallowing toward the Adriatic foreland basin at 125 km depth. Our results are consistent with the presence of two mantle wedges, resulting from the rollback of the Ligurian-Tethys and Vardar-NeoTethys oceanic slabs followed by continental mantle delamination of the eastern and western distal margins of Adria. These two opposed slabs beneath the Apennines and Dinarides are modeled as two thermal sublithospheric anomalies of −200°C. Most of the elevation along the profile is under thermal isostasy and departures can be explained by regional isostasy with an elastic thickness between 10 and 20 km.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
2023
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/10261/305208
url http://hdl.handle.net/10261/305208
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-095154-B-I00
Zhang, Wentao; Jimenez-Munt, Ivone; Torné, Montserrat; Vergés, Jaume; Bravo-Gutiérrez, Estefanía; Negredo, Ana M.; Carminati, Eugenio; García-Castellanos, Daniel; Fernández, Manel; 2022; Geophysical-petrological model for bidirectional mantle delamination of the Adria microplate beneath the northern Apennines and Dinarides orogenic systems [Dataset]; DIGITAL.CSIC; http://hdl.handle.net/10261/280680
http://dx.doi.org/10.1029/2022JB024800
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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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score 15.81155

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