A U-Pb Study of Zircons from a Lower Crustal Granulite Xenolith of the Spanish Central System: A Record of Iberian Lithospheric Evolution from the Neoproterozoic to the Triassic

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dc.contributor.authorFernández Suárez, Javier
dc.contributor.authorArenas Martín, Ricardo
dc.contributor.authorJeffries, Teresa E.
dc.contributor.authorWhitehouse, Martín J.
dc.contributor.authorVillaseca González, Carlos
dc.date.accessioned2023-06-20T09:27:31Z
dc.date.available2023-06-20T09:27:31Z
dc.date.issued2006
dc.description.abstractA U-Pb laser ablation inductively coupled plasma mass spectrometry and secondary ion mass spectrometry geochronological study has been performed on zircons from a felsic granulite xenolith from the lower crust under the Variscan belt of Iberia. The ages obtained reveal zircon-forming events that span from the late Neoproterozoic (Cadomian-Avalonian orogeny) to the early stages of the opening of the Atlantic Ocean in the Mesozoic, through Cambro-Ordovician rifting, Devono-Carboniferous Variscan-Alleghenian collision, and Permian-Triassic extension and uplift. The U-Pb age groups found in zircons from this single lower crustal xenolith (ca. 220, 250, 280–310, 460–490, 525, and 550–490 Ma) record at least one complete cycle of closing and opening of oceanic basins and collision of continental masses. Zircons from the felsic granulite xenolith contain a synthesis of the geochronological information found on the surface geology and record most but not all major lithospheric events in the region in a ca. 400-m.yr. period.
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/12369
dc.identifier.issn0022-1376
dc.identifier.officialurlhttp://www.jstor.org/page/journal/jgeology/about.html
dc.identifier.urihttps://hdl.handle.net/20.500.14352/49599
dc.journal.titleThe Journal of geology
dc.language.isoeng
dc.page.final483
dc.page.initial471
dc.publisherChicago, University of Chicago Press.
dc.rights.accessRightsopen access
dc.subject.cdu550.93(234.1)
dc.subject.keywordU-Pb study
dc.subject.keywordZircons
dc.subject.keywordGranulite
dc.subject.keywordSpain
dc.subject.keywordGeocronology
dc.subject.ucmGeoquímica
dc.subject.unesco2503 Geoquímica
dc.titleA U-Pb Study of Zircons from a Lower Crustal Granulite Xenolith of the Spanish Central System: A Record of Iberian Lithospheric Evolution from the Neoproterozoic to the Triassic
dc.typejournal article
dc.volume.number114
dspace.entity.typePublication
relation.isAuthorOfPublicationa6e74377-1c86-4236-9e6a-72091bd7b56d
relation.isAuthorOfPublication590ee677-786b-4d34-b10b-30b65d1a8d35
relation.isAuthorOfPublicatione645e46d-5962-4158-a2fd-b3fea7ed85bd
relation.isAuthorOfPublication.latestForDiscoverya6e74377-1c86-4236-9e6a-72091bd7b56d
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