The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?

Autores
Rapalini, Augusto Ernesto; Lopez, Monica Graciela; Tohver, Eric; Cawood, Peter A.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New U-Pb and 40Ar/39Ar age data from deformed and undeformed granitoids of the North Patagonian Massif establish the presence of Early Cambrian and widespread Ordovician magmatism in northern Patagonia. These data suggest that the Pampean (Cambrian) and Famatinian (Ordovician) magmatic belts of the Sierras Pampeanas are continuous into Patagonia. SHRIMP U-Pb age spectra from detrital zircons of Cambro-Ordovician metasedimentary rocks show patterns very similar to those from equivalent units of the Pampia block, over 500 km farther north. These results suggest that the North Patagonian Massif was likely part of the South American margin of Gondwana in the early Palaeozoic and strongly argue in favour of an authochtonous or para-autochthonous origin for this block.
Fil: Rapalini, Augusto Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Lopez, Monica Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentina
Fil: Tohver, Eric. University of Western Australia; Australia
Fil: Cawood, Peter A.. University Of St Andrews; Reino Unido
Materia
Patagonia
Magmatism
Terranes
Gondwana
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/18586
Acceder
id CONICETDig_d31b3e9083e6ce864c3c1a0ea010a89a
oai_identifier_str oai:ri.conicet.gov.ar:11336/18586
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?Rapalini, Augusto ErnestoLopez, Monica GracielaTohver, EricCawood, Peter A.PatagoniaMagmatismTerranesGondwanahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1New U-Pb and 40Ar/39Ar age data from deformed and undeformed granitoids of the North Patagonian Massif establish the presence of Early Cambrian and widespread Ordovician magmatism in northern Patagonia. These data suggest that the Pampean (Cambrian) and Famatinian (Ordovician) magmatic belts of the Sierras Pampeanas are continuous into Patagonia. SHRIMP U-Pb age spectra from detrital zircons of Cambro-Ordovician metasedimentary rocks show patterns very similar to those from equivalent units of the Pampia block, over 500 km farther north. These results suggest that the North Patagonian Massif was likely part of the South American margin of Gondwana in the early Palaeozoic and strongly argue in favour of an authochtonous or para-autochthonous origin for this block.Fil: Rapalini, Augusto Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Lopez, Monica Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; ArgentinaFil: Tohver, Eric. University of Western Australia; AustraliaFil: Cawood, Peter A.. University Of St Andrews; Reino UnidoWiley2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18586Rapalini, Augusto Ernesto; Lopez, Monica Graciela; Tohver, Eric; Cawood, Peter A.; The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?; Wiley; Terra Nova (print); 25; 4; 8-2013; 337-3420954-4879CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/ter.12043info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ter.12043/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:33Zoai:ri.conicet.gov.ar:11336/18586instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:50:33.886CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?
title The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?
spellingShingle The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?
Rapalini, Augusto Ernesto
Patagonia
Magmatism
Terranes
Gondwana
title_short The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?
title_full The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?
title_fullStr The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?
title_full_unstemmed The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?
title_sort The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?
dc.creator.none.fl_str_mv Rapalini, Augusto Ernesto
Lopez, Monica Graciela
Tohver, Eric
Cawood, Peter A.
author Rapalini, Augusto Ernesto
author_facet Rapalini, Augusto Ernesto
Lopez, Monica Graciela
Tohver, Eric
Cawood, Peter A.
author_role author
author2 Lopez, Monica Graciela
Tohver, Eric
Cawood, Peter A.
author2_role author
author
author
dc.subject.none.fl_str_mv Patagonia
Magmatism
Terranes
Gondwana
topic Patagonia
Magmatism
Terranes
Gondwana
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv New U-Pb and 40Ar/39Ar age data from deformed and undeformed granitoids of the North Patagonian Massif establish the presence of Early Cambrian and widespread Ordovician magmatism in northern Patagonia. These data suggest that the Pampean (Cambrian) and Famatinian (Ordovician) magmatic belts of the Sierras Pampeanas are continuous into Patagonia. SHRIMP U-Pb age spectra from detrital zircons of Cambro-Ordovician metasedimentary rocks show patterns very similar to those from equivalent units of the Pampia block, over 500 km farther north. These results suggest that the North Patagonian Massif was likely part of the South American margin of Gondwana in the early Palaeozoic and strongly argue in favour of an authochtonous or para-autochthonous origin for this block.
Fil: Rapalini, Augusto Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Lopez, Monica Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentina
Fil: Tohver, Eric. University of Western Australia; Australia
Fil: Cawood, Peter A.. University Of St Andrews; Reino Unido
description New U-Pb and 40Ar/39Ar age data from deformed and undeformed granitoids of the North Patagonian Massif establish the presence of Early Cambrian and widespread Ordovician magmatism in northern Patagonia. These data suggest that the Pampean (Cambrian) and Famatinian (Ordovician) magmatic belts of the Sierras Pampeanas are continuous into Patagonia. SHRIMP U-Pb age spectra from detrital zircons of Cambro-Ordovician metasedimentary rocks show patterns very similar to those from equivalent units of the Pampia block, over 500 km farther north. These results suggest that the North Patagonian Massif was likely part of the South American margin of Gondwana in the early Palaeozoic and strongly argue in favour of an authochtonous or para-autochthonous origin for this block.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/18586
Rapalini, Augusto Ernesto; Lopez, Monica Graciela; Tohver, Eric; Cawood, Peter A.; The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?; Wiley; Terra Nova (print); 25; 4; 8-2013; 337-342
0954-4879
CONICET Digital
CONICET
url http://hdl.handle.net/11336/18586
identifier_str_mv Rapalini, Augusto Ernesto; Lopez, Monica Graciela; Tohver, Eric; Cawood, Peter A.; The South American ancestry of the North Patagonian Massif: geochronological evidence for an autochthonous origin?; Wiley; Terra Nova (print); 25; 4; 8-2013; 337-342
0954-4879
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/ter.12043
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ter.12043/abstract
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613558070935552
score 13.070432

Publicaciones similares