Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain

[EN] The late Ediacaran carbonate production recorded in a Cadomian retroarc basin from the Iberian Peninsula provides an excellent opportunity to evaluate the tectonic and redox factors that controlled the infill of the foredeep troughs, located between uplifted orogenic wedges and exposed forebulg...

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Autores: Álvaro, J. Javier, Lorenzo, Saturnino, Martínez-Benítez, Blanca, Pieren, A. P.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/390629
Acceso en línea:http://hdl.handle.net/10261/390629
https://api.elsevier.com/content/abstract/scopus_id/85207836023
Access Level:acceso abierto
Palabra clave:Cadomian Rretroarc basin
Carbonate factory
Ediacaran
Gondwana
Megabreccia
Fàbrica de carbonats
Megabretxa
Ediacarià
Conca de rerearc cadomiana
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spelling Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, SpainÁlvaro, J. JavierLorenzo, SaturninoMartínez-Benítez, BlancaPieren, A. P.Cadomian Rretroarc basinCarbonate factoryEdiacaranGondwanaMegabrecciaFàbrica de carbonatsMegabretxaEdiacariàConca de rerearc cadomianaGondwana[EN] The late Ediacaran carbonate production recorded in a Cadomian retroarc basin from the Iberian Peninsula provides an excellent opportunity to evaluate the tectonic and redox factors that controlled the infill of the foredeep troughs, located between uplifted orogenic wedges and exposed forebulge transects. In the Central Iberian Zone of the Iberian massif, the carbonates of the Villarta Formation follow two geographic belts, which represent short-term mosaics of uplifted and tilted fault-bounded basement highs. These recorded the nucleation of fringing reefal (rich in Cloudina and Sinotubulites microfossils embedded in thromboid textures) and shoal and back-barrier complexes, which episodically fed slope-related megabreccia lobes and channels. REE+Y datasets from the impure carbonates reflect contamination by detrital material, hydrothermal interaction and variable redox conditions, ranging from oxic to dysoxic, the latter emphasized by the deposition of kerogenous black shales in distal parts of the foredeep trough.[CAT] La producció de carbonats a la fi de l’Ediacarià en una conca de retroarc cadomiana de la Península Ibèrica proporciona una oportunitat excel·lent per avaluar els factors tectònics i de redox que van controlar el rebliment de les fosses d’avantarc, situades entre tascons orogènics elevats i bombaments frontals exposats. A la Zona Centreibèrica del Massís Ibèric, els carbonats de la formació Villarta es troben en dues franges, que representen mosaics d’elevacions del basament de curta durada limitades per falles basculades. En aquestes elevacions s’observa la nucleació d’esculls de barrera (rics en microfòssils de Cloudina i Sinotubulites incrustats en textures tromboïdals) i de complexos de bancs d’arena i zones de rerebarrera, que de manera episòdica van alimentar lòbuls i canals de megabretxa generats a causa del pendent. Els conjunts de REE+Y dels carbonats impurs indiquen una contaminació per material detrític, interacció hidrotermal i condicions redox variables, que van des d’òxiques fins a disòxiques, aquestes últimes accentuades per la deposició de lutites negres amb matèria orgànica en les parts més distals de la fossa d’avantarc.The authors appreciate the constructive revision made by Lluís Cabrera and Josep Maria Casas (UB, Barcelona). JJA warmly thanks technical support by Idoia Rosales (IGME, Tres Cantos) for carrying out CL images, and Laura Tormo (MNCN, Madrid) for SEM-BSE analysis. This work is a contribution to Spanish project PID2021-125585NB-I00 from Ministerio de Ciencia e Innovación.Peer reviewedUniversidad de BarcelonaMinisterio de Ciencia e Innovación (España)Álvaro, J. Javier [0000-0001-6294-1998]Lorenzo, Saturnino [0000-0001-7442-4760]Martínez-Benítez, Blanca [0000-0001-7715-476X]Pieren, Agustín P. [0000-0001-8783-2368]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/390629https://api.elsevier.com/content/abstract/scopus_id/85207836023reponame: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 2021-2023/PID2021-125585NB-I00https://doi.org/10.1344/GeologicaActa2024.22.5Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3906292026-05-22T06:33:51Z
dc.title.none.fl_str_mv Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
title Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
spellingShingle Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
Álvaro, J. Javier
Cadomian Rretroarc basin
Carbonate factory
Ediacaran
Gondwana
Megabreccia
Fàbrica de carbonats
Megabretxa
Ediacarià
Conca de rerearc cadomiana
Gondwana
title_short Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
title_full Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
title_fullStr Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
title_full_unstemmed Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
title_sort Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
dc.creator.none.fl_str_mv Álvaro, J. Javier
Lorenzo, Saturnino
Martínez-Benítez, Blanca
Pieren, A. P.
author Álvaro, J. Javier
author_facet Álvaro, J. Javier
Lorenzo, Saturnino
Martínez-Benítez, Blanca
Pieren, A. P.
author_role author
author2 Lorenzo, Saturnino
Martínez-Benítez, Blanca
Pieren, A. P.
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Álvaro, J. Javier [0000-0001-6294-1998]
Lorenzo, Saturnino [0000-0001-7442-4760]
Martínez-Benítez, Blanca [0000-0001-7715-476X]
Pieren, Agustín P. [0000-0001-8783-2368]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Cadomian Rretroarc basin
Carbonate factory
Ediacaran
Gondwana
Megabreccia
Fàbrica de carbonats
Megabretxa
Ediacarià
Conca de rerearc cadomiana
Gondwana
topic Cadomian Rretroarc basin
Carbonate factory
Ediacaran
Gondwana
Megabreccia
Fàbrica de carbonats
Megabretxa
Ediacarià
Conca de rerearc cadomiana
Gondwana
description [EN] The late Ediacaran carbonate production recorded in a Cadomian retroarc basin from the Iberian Peninsula provides an excellent opportunity to evaluate the tectonic and redox factors that controlled the infill of the foredeep troughs, located between uplifted orogenic wedges and exposed forebulge transects. In the Central Iberian Zone of the Iberian massif, the carbonates of the Villarta Formation follow two geographic belts, which represent short-term mosaics of uplifted and tilted fault-bounded basement highs. These recorded the nucleation of fringing reefal (rich in Cloudina and Sinotubulites microfossils embedded in thromboid textures) and shoal and back-barrier complexes, which episodically fed slope-related megabreccia lobes and channels. REE+Y datasets from the impure carbonates reflect contamination by detrital material, hydrothermal interaction and variable redox conditions, ranging from oxic to dysoxic, the latter emphasized by the deposition of kerogenous black shales in distal parts of the foredeep trough.
publishDate 2024
dc.date.none.fl_str_mv 2024
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/10261/390629
https://api.elsevier.com/content/abstract/scopus_id/85207836023
url http://hdl.handle.net/10261/390629
https://api.elsevier.com/content/abstract/scopus_id/85207836023
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 2021-2023/PID2021-125585NB-I00
https://doi.org/10.1344/GeologicaActa2024.22.5
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 Universidad de Barcelona
publisher.none.fl_str_mv Universidad de Barcelona
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
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