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Geodynamic evolution of the SW Europe Variscides

dc.contributor.authorRibeiro, António
dc.contributor.authorMunhá, José
dc.contributor.authorDias, Rui
dc.contributor.authorMateus, António
dc.contributor.authorPereira, Eurico
dc.contributor.authorRibeiro, Luísa
dc.contributor.authorFonseca, Paulo
dc.contributor.authorAraújo, Alexandre
dc.contributor.authorOliveira, Tomás
dc.contributor.authorRomão, José
dc.contributor.authorChaminé, Helder I.
dc.contributor.authorCoke, Carlos
dc.contributor.authorPedro, Jorge
dc.date.accessioned2017-06-29T14:10:16Z
dc.date.available2017-06-29T14:10:16Z
dc.date.issued2007
dc.description.abstractThe early evolution of SW Europe Variscides started by opening of the Rheic ocean at 500 Ma, splitting Avalonia from Armorica/Iberia. Subduction on the SE side of Rheic generated the Paleotethys back-arc basin (430–390 Ma, splitting Armorica from Iberia), with development of Porto-Tomar-Ferreira do Alentejo (PTFA) dextral transform defining the boundary between continental Armorica and Finisterra microplate to the W. Obduction of Paleotethys was followed by Armorica/Iberia collision and emplacement of NW Iberian Allochthonous Units at 390–370 Ma, whereas toward the west of PTFA, there was antithetic ophiolite obduction (Beja-Acebuches and Rheic ophiolites plus Finisterra continental slices) on top of Ossa-Morena Zone, with simultaneous development of eclogites and orogenic magmatism under a flake– double wedge tectonic regime. Continued convergence (<370 Ma) proceeded by intracontinental deformation, with progressive tightening of the Ibero-Armorican Arc through dextral transpression on the Cantabrian Indentor, from Iberia to Armorica. The proposed model is discussed at the light of the driving mechanism of ‘‘soft plate tectonics.’’pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1029/2006TC002058pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/9977
dc.language.isoengpt_PT
dc.publisherWileypt_PT
dc.relation.ispartofseriesTectonics;Vol. 26, Issue 6
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1029/2006TC002058/fullpt_PT
dc.titleGeodynamic evolution of the SW Europe Variscidespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleTectonicspt_PT
person.familyNameI. Chaminé
person.givenNameHelder
person.identifier.ciencia-idA219-6949-7254
person.identifier.orcid0000-0002-9740-935X
person.identifier.scopus-author-id8782621900
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication26c22f94-68f4-426d-a6e7-110ea47cdeee
relation.isAuthorOfPublication.latestForDiscovery26c22f94-68f4-426d-a6e7-110ea47cdeee

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