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High strain peralkaline orthogneisses within orogenic scale shear zones: geological and structural mapping in the Arronches region (Tomar-Badajoz-Córdoba Shear Zone, Ossa-Morena Zone)

2025-04Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
dc.contributor.authorRoseiro, José
dc.contributor.authorMoreira, Noel
dc.contributor.authorNogueira, Pedro
dc.contributor.authorde Oliveira, Daniel Pipa Soares
dc.date.accessioned2025-06-27T15:32:24Z
dc.date.available2025-06-27T15:32:24Z
dc.date.issued2025-04
dc.description.abstractABSTRACT: The lithological units in the Arronches region (included within the Arronches tectonic unit, Tomar-Badajoz-Córdoba Shear Zone, northernmost Ossa-Morena Zone) and in particular the peralkaline orthogneisses therein, have been the target for petrological, geochemical and structural studies in order to constrain its petrogenesis and tectono-metamorphic contextualization within the broader regional geology. Two detailed geological-structural maps of the Arronches region (from the Arronches village and the Fialha area), as well as the structural analysis allow the description of two mylonitic high strain fabrics found in different peralkaline orthogneiss bodies (the dominantly Arronches-type S fabric and the dominantly Fialha-type S-L fabric), which provide better insights about the internal architecture of the Tomar-Badajoz-Córdoba Shear Zone.eng
dc.description.abstractRESUMO: As unidades litológicas na região de Arronches (incluídas na unidade tectónica de Arronches, Zona de Cisalhamento Tomar-Badajoz-Córdoba, extremo norte da Zona de Ossa-Morena) e em particular os ortognaisses peralcalinos, têm sido alvo de estudos de petrologia, geoquímica e geologia estrutural, para constranger a petrogénese e contextualização tectono-metamórficas para a geologia regional. Dois mapas geológico-estruturais detalhados da região de Arronches (da vila de Arronches e da área da Fialha), bem como uma análise estrutural permitiram a descrição de dois tipos de texturas miloníticas encontradas em diferentes corpos de ortognaisses (o fabric S dominante no tipo Arronches e o fabric S-L dominante no tipo Fialha) o que fornece uma visão mais detalhada sobre a arquitectura interna da Zona de Cisalhamento Tomar-Badajoz-Córdoba.por
dc.identifier.citationRoseiro, J., Moreira, N., Nogueira, P. & Oliveira, D. (2025). High strain peralkaline orthogneisses within orogenic scale shear zones: geological and structural mapping in the Arronches region (Tomar-Badajoz-Córdoba Shear Zone, Ossa-Morena Zone). In: Comunicações Geológicas, 2025, vol. 112, Fascículo Especial I, pp. 377-380. https://doi.org/10.34637/w3v7-jt88
dc.identifier.doi10.34637/w3v7-jt88
dc.identifier.eissn1647-581X
dc.identifier.issn0873-948X
dc.identifier.urihttp://hdl.handle.net/10400.9/5897
dc.language.isoeng
dc.peerreviewedyes
dc.publisherLNEG - Laboratório Nacional de Energia e Geologia
dc.relationFrom mantle to Iberia: crust-mantle interaction, geodynamic evolution and ore forming systems of alkaline melts in the northernmost Ossa-Morena Zone domains
dc.relationINSTITUTE OF EARTH SCIENCES
dc.relation.hasversionhttps://www.lneg.pt/wp-content/uploads/2025/04/75_Roseiro-et-al.pdf
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectPeralkaline gneisses
dc.subjectStructural mapping
dc.subjectHigh strain
dc.subjectArronches region
dc.subjectShear zone
dc.subjectTomar-Badajoz-Córdoba
dc.subjectGnaisses peralcalinos
dc.subjectCartografia estrutural
dc.subjectDeformação
dc.subjectRegião de Arronches
dc.subjectZona de cisalhamento
dc.titleHigh strain peralkaline orthogneisses within orogenic scale shear zones: geological and structural mapping in the Arronches region (Tomar-Badajoz-Córdoba Shear Zone, Ossa-Morena Zone)eng
dc.title.alternativeDeformação em ortognaisses peralcalinos em zonas de cisalhamento de escala orogénica: cartografia geológica e estrutural na região de Arronches (Zona de Cisalhamento Tomar-Badajoz-Córdoba, Zona de Ossa-Morena)por
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleFrom mantle to Iberia: crust-mantle interaction, geodynamic evolution and ore forming systems of alkaline melts in the northernmost Ossa-Morena Zone domains
oaire.awardTitleINSTITUTE OF EARTH SCIENCES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_ALENT/UI%2FBD%2F150937%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04683%2F2020/PT
oaire.citation.endPage380
oaire.citation.issueEspecial I
oaire.citation.startPage377
oaire.citation.titleComunicações Geológicas
oaire.citation.volume112
oaire.fundingStreamPOR_ALENT
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameRoseiro
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person.givenNameJosé
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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Volume 112 (2025) Fascículo Especial I - XI Congresso Nacional de Geologia