Mostrar el registro sencillo del ítem

A revised Ordovician age for the Miranda do Douro orthogneiss, Portugal. Zircon U-Pb ion-microprobe and LA-ICPMS dating

dc.contributor.authorBea Barredo, Fernando 
dc.contributor.authorGonzález Montero, Pilar
dc.contributor.authorTalavera Rodríguez, Cristina
dc.contributor.authorZinger, Tatiana
dc.date.accessioned2014-06-02T07:07:57Z
dc.date.available2014-06-02T07:07:57Z
dc.date.issued2006
dc.identifier.citationBea Barredo, F.; et al. A revised Ordovician age for the Miranda do Douro orthogneiss, Portugal. Zircon U-Pb ion-microprobe and LA-ICPMS dating. Geologica Acta, 4(3): 395-401 (2006). [http://hdl.handle.net/10481/32070]es_ES
dc.identifier.issn1695-6133
dc.identifier.issn1696-5728es_ES
dc.identifier.urihttp://hdl.handle.net/10481/32070
dc.description.abstractThe Miranda do Douro orthogneiss was believed to be the oldest magmatic rock of the Central Iberian Zone, on the base of a U-Pb discordia upper intercept of 618 ± 9 Ma. Nevertheless, new ion-microprobe and LA-ICPMS U-Pb zircon dating revealed that the crystallization age was 483 ± 3 Ma. The orthogneiss also contains a 605 ± 13 Ma zircon population that indicates that the source-rock for the Ordovician magma was Pan-African. Moreover, a few ~3.17 Ga zircon grains were also recorded. These grains are the oldest found so far in Iberia, and its occurrence would suggest the involvement of an Archean crust in the Pan-African orogeny.es_ES
dc.description.sponsorshipThis work was financially supported supported by the Spanish DGCYT grant BTE2002-04618-C02-01, the SYNTHESIS grant SE-TAF 528 and the NATO Collaborative Project EST-CLG-978997.es_ES
dc.language.isoenges_ES
dc.publisherUniversidad de Barcelona; Instituto de Ciencias de la Tierra Jaume Almeraes_ES
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 3.0 License
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subjectU-Pb datinges_ES
dc.subjectOllo de Sapoes_ES
dc.subjectPre-Variscanes_ES
dc.subjectCentral Iberian Zonees_ES
dc.subjectGneisses_ES
dc.titleA revised Ordovician age for the Miranda do Douro orthogneiss, Portugal. Zircon U-Pb ion-microprobe and LA-ICPMS datinges_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


Ficheros en el ítem

[PDF]
Nombre:
BeaBarredo_U-Pb.pdf
Tamaño:
256.2Kb
Formato:
PDF

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem

Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Excepto si se señala otra cosa, la licencia del ítem se describe como Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License