Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications

The first LA-ICP-MS U-Pb detrital zircon ages from quartzites located in the Ordovician rocks from the Central Pyrenees (the Rabassa Dome, Andorra) were investigated. The four studied samples present very similar U-Pb age patterns. The main age populations correspond to Neoproterozoic (Ediacarian–Cr...

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Detalles Bibliográficos
Autores: Margalef, A., Casas Tuset, Josep María, Castiñeiras García, Pedro, Navidad Fernández De La Cruz, Marina, Liesa, M.
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/23768
Acceso en línea:https://hdl.handle.net/20.500.14352/23768
Access Level:acceso abierto
Palabra clave:551.733
Detrital zircon
Ordovician rocks
Pyrenees
North Gondwana margin
Circones detríticos
Rocas Ordovícicas
Pirineos
Margen norte de Gondwana
Geología estratigráfica
2506.19 Estratigrafía
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oai_identifier_str oai:docta.ucm.es:20.500.14352/23768
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repository_id_str
spelling Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implicationsComparación entre poblaciones de circones detríticos de rocas ordovícicas del Pirineo y de otros terrenos perigondwánicos: implicaciones paleogeográficasMargalef, A.Casas Tuset, Josep MaríaCastiñeiras García, PedroNavidad Fernández De La Cruz, MarinaLiesa, M.551.733Detrital zirconOrdovician rocksPyreneesNorth Gondwana marginCircones detríticosRocas OrdovícicasPirineosMargen norte de GondwanaGeología estratigráfica2506.19 EstratigrafíaThe first LA-ICP-MS U-Pb detrital zircon ages from quartzites located in the Ordovician rocks from the Central Pyrenees (the Rabassa Dome, Andorra) were investigated. The four studied samples present very similar U-Pb age patterns. The main age populations correspond to Neoproterozoic (Ediacarian–Cryogenian, ca. 550–750 Ma), Grenvillian (Tonian–Stenian, ca. 850–1100 Ma), Paleoproterozoic (Orosirian, ca. 1900–2100 Ma) and Neoarchean (ca. 2500–2650 Ma). The results presented here enable us to discuss the lower Paleozoic paleoposition of the Pyrenean basement rocks. We have compared our samples with that from other Perigondwanan terrains such as Sardinia, Sicily and the Iberian Massif. The similarity with the Sardinian age distribution suggests that these two terranes could share the same source area and that they were paleogeographically close in Ordovician times in front of the Arabian-Nubian Shield. Comparisons with previous proposed reconstructions allow us to obtain a more complete view of the paleogeography of the Northern Gondwana margin during the Cambro-Ordovician.Sociedad Geológica de España.Universidad Complutense de Madrid20162016-01-0120162016-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/23768reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/237682026-06-02T12:44:21Z
dc.title.none.fl_str_mv Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications
Comparación entre poblaciones de circones detríticos de rocas ordovícicas del Pirineo y de otros terrenos perigondwánicos: implicaciones paleogeográficas
title Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications
spellingShingle Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications
Margalef, A.
551.733
Detrital zircon
Ordovician rocks
Pyrenees
North Gondwana margin
Circones detríticos
Rocas Ordovícicas
Pirineos
Margen norte de Gondwana
Geología estratigráfica
2506.19 Estratigrafía
title_short Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications
title_full Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications
title_fullStr Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications
title_full_unstemmed Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications
title_sort Comparison between detrital zircon populations from the Ordovician rocks of the Pyrenees and from other Perigondwanan terrains: paleogeographic implications
dc.creator.none.fl_str_mv Margalef, A.
Casas Tuset, Josep María
Castiñeiras García, Pedro
Navidad Fernández De La Cruz, Marina
Liesa, M.
author Margalef, A.
author_facet Margalef, A.
Casas Tuset, Josep María
Castiñeiras García, Pedro
Navidad Fernández De La Cruz, Marina
Liesa, M.
author_role author
author2 Casas Tuset, Josep María
Castiñeiras García, Pedro
Navidad Fernández De La Cruz, Marina
Liesa, M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.733
Detrital zircon
Ordovician rocks
Pyrenees
North Gondwana margin
Circones detríticos
Rocas Ordovícicas
Pirineos
Margen norte de Gondwana
Geología estratigráfica
2506.19 Estratigrafía
topic 551.733
Detrital zircon
Ordovician rocks
Pyrenees
North Gondwana margin
Circones detríticos
Rocas Ordovícicas
Pirineos
Margen norte de Gondwana
Geología estratigráfica
2506.19 Estratigrafía
description The first LA-ICP-MS U-Pb detrital zircon ages from quartzites located in the Ordovician rocks from the Central Pyrenees (the Rabassa Dome, Andorra) were investigated. The four studied samples present very similar U-Pb age patterns. The main age populations correspond to Neoproterozoic (Ediacarian–Cryogenian, ca. 550–750 Ma), Grenvillian (Tonian–Stenian, ca. 850–1100 Ma), Paleoproterozoic (Orosirian, ca. 1900–2100 Ma) and Neoarchean (ca. 2500–2650 Ma). The results presented here enable us to discuss the lower Paleozoic paleoposition of the Pyrenean basement rocks. We have compared our samples with that from other Perigondwanan terrains such as Sardinia, Sicily and the Iberian Massif. The similarity with the Sardinian age distribution suggests that these two terranes could share the same source area and that they were paleogeographically close in Ordovician times in front of the Arabian-Nubian Shield. Comparisons with previous proposed reconstructions allow us to obtain a more complete view of the paleogeography of the Northern Gondwana margin during the Cambro-Ordovician.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01
2016
2016-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/23768
url https://hdl.handle.net/20.500.14352/23768
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica de España.
publisher.none.fl_str_mv Sociedad Geológica de España.
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411882714005504
score 15.300724

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