The metamorphic complexes of the Patagonian and Fuegian Andes

The Patagonian and Fuegian Andes are made up in part by late Paleozoic to Mesozoic metamorphic complexes. The mostly low grade late Paleozoic Eastern Andes Metamorphic Complex (EAMC) crops out to the East of the Meso-Cenozoic South Patagonian batholith (SPB), which intruded the metamorphic complexes...

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Detalles Bibliográficos
Autores: Hervé Allamand, Francisco Enrique Isidoro, Calderón, Mauricio, Faúndez, Victor
Tipo de recurso: artículo
Fecha de publicación:2008
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:85954
Acceso en línea:https://ddd.uab.cat/record/85954
https://dx.doi.org/urn:doi:10.1344/105.000000240
Access Level:acceso abierto
Palabra clave:Metamorphic complexes
Late Paleozoic
Jurassic
Blueschists
Subduction Zone
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spelling The metamorphic complexes of the Patagonian and Fuegian AndesHervé Allamand, Francisco Enrique IsidoroCalderón, MauricioFaúndez, VictorMetamorphic complexesLate PaleozoicJurassicBlueschistsSubduction ZoneThe Patagonian and Fuegian Andes are made up in part by late Paleozoic to Mesozoic metamorphic complexes. The mostly low grade late Paleozoic Eastern Andes Metamorphic Complex (EAMC) crops out to the East of the Meso-Cenozoic South Patagonian batholith (SPB), which intruded the metamorphic complexes. The protholit of the EAMC was likely deposited in a passive margin setting and at the Puerto Edén area underwent Late Jurassic sillimanite grade and migmatite local metamorphic conditions. It is suspected, but not proven, that the Cordillera Darwin Metamorphic Complex is a higher grade metamorphic complex equivalent of the EAMC. West of the SPB, paleo subduction complexes occur and are represented by the allochtonous Madre de Dios terrane. This terrane is composed of the ocean floor lithologies of the Denaro Complex topped by the Tarlton limestones that represent a guyot assemblage. The low grade continent derived Duque de York complex was deposited down top of the ocean floor lithologies. Further west, the blueschist bearing Middle Jurassic Diego de Almagro Complex, with psammopelitic, mafic and siliceous volcanic rock protoliths, evolved deep in a subduction zone during the Cretaceous. The possibility that the Antarctic Peninsula was located west of the present margin of South America is discussed. 22008-01-0120082008-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/85954https://dx.doi.org/urn:doi:10.1344/105.000000240reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.https://creativecommons.org/licenses/by-sa/3.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:859542026-06-06T12:50:31Z
dc.title.none.fl_str_mv The metamorphic complexes of the Patagonian and Fuegian Andes
title The metamorphic complexes of the Patagonian and Fuegian Andes
spellingShingle The metamorphic complexes of the Patagonian and Fuegian Andes
Hervé Allamand, Francisco Enrique Isidoro
Metamorphic complexes
Late Paleozoic
Jurassic
Blueschists
Subduction Zone
title_short The metamorphic complexes of the Patagonian and Fuegian Andes
title_full The metamorphic complexes of the Patagonian and Fuegian Andes
title_fullStr The metamorphic complexes of the Patagonian and Fuegian Andes
title_full_unstemmed The metamorphic complexes of the Patagonian and Fuegian Andes
title_sort The metamorphic complexes of the Patagonian and Fuegian Andes
dc.creator.none.fl_str_mv Hervé Allamand, Francisco Enrique Isidoro
Calderón, Mauricio
Faúndez, Victor
author Hervé Allamand, Francisco Enrique Isidoro
author_facet Hervé Allamand, Francisco Enrique Isidoro
Calderón, Mauricio
Faúndez, Victor
author_role author
author2 Calderón, Mauricio
Faúndez, Victor
author2_role author
author
dc.subject.none.fl_str_mv Metamorphic complexes
Late Paleozoic
Jurassic
Blueschists
Subduction Zone
topic Metamorphic complexes
Late Paleozoic
Jurassic
Blueschists
Subduction Zone
description The Patagonian and Fuegian Andes are made up in part by late Paleozoic to Mesozoic metamorphic complexes. The mostly low grade late Paleozoic Eastern Andes Metamorphic Complex (EAMC) crops out to the East of the Meso-Cenozoic South Patagonian batholith (SPB), which intruded the metamorphic complexes. The protholit of the EAMC was likely deposited in a passive margin setting and at the Puerto Edén area underwent Late Jurassic sillimanite grade and migmatite local metamorphic conditions. It is suspected, but not proven, that the Cordillera Darwin Metamorphic Complex is a higher grade metamorphic complex equivalent of the EAMC. West of the SPB, paleo subduction complexes occur and are represented by the allochtonous Madre de Dios terrane. This terrane is composed of the ocean floor lithologies of the Denaro Complex topped by the Tarlton limestones that represent a guyot assemblage. The low grade continent derived Duque de York complex was deposited down top of the ocean floor lithologies. Further west, the blueschist bearing Middle Jurassic Diego de Almagro Complex, with psammopelitic, mafic and siliceous volcanic rock protoliths, evolved deep in a subduction zone during the Cretaceous. The possibility that the Antarctic Peninsula was located west of the present margin of South America is discussed.
publishDate 2008
dc.date.none.fl_str_mv 2
2008-01-01
2008
2008-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/85954
https://dx.doi.org/urn:doi:10.1344/105.000000240
url https://ddd.uab.cat/record/85954
https://dx.doi.org/urn:doi:10.1344/105.000000240
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
https://creativecommons.org/licenses/by-sa/3.0/
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
https://creativecommons.org/licenses/by-sa/3.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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