Using SHRIMP zircon dating to unravel tectonothermal events in arc environments. The early Palaeozoic arc of NW Iberia revisited

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dc.contributor.authorAbati Gómez, Jacobo
dc.contributor.authorCastiñeiras García, Pedro
dc.contributor.authorArenas Martín, Ricardo
dc.contributor.authorFernández Suárez, Javier
dc.contributor.authorGómez Barreiro, Juan
dc.contributor.authorWooden, Joseph L.
dc.date.accessioned2023-06-20T09:30:47Z
dc.date.available2023-06-20T09:30:47Z
dc.date.issued2007
dc.descriptionThe definitive version is available at www.blackwell-synergy.com
dc.description.abstractDating of zircon cores and rims from granulites developed in a shear zone provides insights into the complex relationship between magmatism and metamorphism in the deep roots of arc environments. The granulites belong to the uppermost allochthonous terrane of the NW Iberian Massif, which forms part of a Cambro-Ordovician magmatic arc developed in the peri-Gondwanan realm. The obtained zircon ages confirm that voluminous calc-alkaline magmatism peaked around 500 Ma and was shortly followed by granulite facies metamorphism accompanied by deformation at c. 480 Ma, giving a time framework for crustal heating, regional metamorphism, deformation and partial melting, the main processes that control the tectonothermal evolution of arc systems. Traces of this arc can be discontinuously followed in different massifs throughout the European Variscan Belt, and we propose that the uppermost allochthonous units of the NW Iberian Massif, together with the related terranes in Europe, constitute an independent and coherent terrane that drifted away from northern Gondwana prior to the Variscan collisional orogenesis.
dc.description.departmentDepto. de Mineralogía y Petrología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/14018
dc.identifier.doi10.1111/j.1365-3121.2007.00768.x
dc.identifier.issn0954-4879
dc.identifier.officialurlhttp://www.wiley.com/bw/journal.asp?ref=0954-4879
dc.identifier.urihttps://hdl.handle.net/20.500.14352/49775
dc.journal.titleTerra nova
dc.language.isoeng
dc.page.final439
dc.page.initial432
dc.publisherBlackwell Publishing Ltd
dc.rights.accessRightsopen access
dc.subject.cdu552.3
dc.subject.keywordGranulites
dc.subject.keywordZircon
dc.subject.keywordGondwanan
dc.subject.keywordMagmatic arc
dc.subject.ucmPetrología
dc.titleUsing SHRIMP zircon dating to unravel tectonothermal events in arc environments. The early Palaeozoic arc of NW Iberia revisited
dc.typejournal article
dc.volume.number19
dspace.entity.typePublication
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