Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America

New paleomagnetic data isolated in Upper Triassic to Aptian rocks exposed in the Colombian Andes and west of the Guyana craton, in conjunction with paleomagnetic data from the Andes of Venezuela and the South American craton, permit the interpretation of along-margin northward translations of Andean...

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Detalles Bibliográficos
Autores: Bayona, Germán, Rapalini, Augusto Ernesto, Costanzo-Alvarez, Vincenzo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/75876
Acceso en línea:http://hdl.handle.net/11336/75876
Access Level:acceso abierto
Palabra clave:JURASSIC
NORTHERN ANDES
PALEOMAGNETISM
TECTONICS
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
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spelling Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South AmericaBayona, GermánRapalini, Augusto ErnestoCostanzo-Alvarez, VincenzoJURASSICNORTHERN ANDESPALEOMAGNETISMTECTONICShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1New paleomagnetic data isolated in Upper Triassic to Aptian rocks exposed in the Colombian Andes and west of the Guyana craton, in conjunction with paleomagnetic data from the Andes of Venezuela and the South American craton, permit the interpretation of along-margin northward translations of Andean Colombian terranes during the Early-Middle Jurassic. Field tests and comparison with reference paleopoles for South America indicate that characteristic components uncovered in red-siliciclastic and igneous rocks are primary, or near-depositional, and they are carried dominantly by hematite, magnetite and Ti-magnetite. Difference in declination values of characteristic components isolated in fault-bounded blocks document counter-clockwise rotations previous to syn-extensional deposition. The Jurassic tectonic scheme proposed here for the northwestern corner of South America shows an Early Jurassic, linear subduction-related magmatic arc evolving to Late Jurassic rift-related setting associated to the opening of the Proto-Caribbean Ocean and westward retreat of the subduction zone. A similar tectonic evolution for the Jurassic has been proposed for Southwestern USA and the Nazas arc in Mexico.Fil: Bayona, Germán. Corporacion Geológica ARES; ColombiaFil: Rapalini, Augusto Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Costanzo-Alvarez, Vincenzo. Universidad Simón Bolívar; VenezuelaTerra Scientific Publ Co2006-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/75876Bayona, Germán; Rapalini, Augusto Ernesto; Costanzo-Alvarez, Vincenzo; Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America; Terra Scientific Publ Co; Earth Planets And Space; 58; 10; 12-2006; 1255-12721343-8832CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://earth-planets-space.springeropen.com/articles/10.1186/BF03352621info:eu-repo/semantics/altIdentifier/doi/10.1186/BF03352621info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:50:12Zoai:ri.conicet.gov.ar:11336/75876instacron: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:34982024-05-08 13:50:12.818CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America
title Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America
spellingShingle Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America
Bayona, Germán
JURASSIC
NORTHERN ANDES
PALEOMAGNETISM
TECTONICS
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America
title_full Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America
title_fullStr Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America
title_full_unstemmed Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America
title_sort Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America
dc.creator.none.fl_str_mv Bayona, Germán
Rapalini, Augusto Ernesto
Costanzo-Alvarez, Vincenzo
author Bayona, Germán
author_facet Bayona, Germán
Rapalini, Augusto Ernesto
Costanzo-Alvarez, Vincenzo
author_role author
author2 Rapalini, Augusto Ernesto
Costanzo-Alvarez, Vincenzo
author2_role author
author
dc.subject.none.fl_str_mv JURASSIC
NORTHERN ANDES
PALEOMAGNETISM
TECTONICS
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic JURASSIC
NORTHERN ANDES
PALEOMAGNETISM
TECTONICS
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description New paleomagnetic data isolated in Upper Triassic to Aptian rocks exposed in the Colombian Andes and west of the Guyana craton, in conjunction with paleomagnetic data from the Andes of Venezuela and the South American craton, permit the interpretation of along-margin northward translations of Andean Colombian terranes during the Early-Middle Jurassic. Field tests and comparison with reference paleopoles for South America indicate that characteristic components uncovered in red-siliciclastic and igneous rocks are primary, or near-depositional, and they are carried dominantly by hematite, magnetite and Ti-magnetite. Difference in declination values of characteristic components isolated in fault-bounded blocks document counter-clockwise rotations previous to syn-extensional deposition. The Jurassic tectonic scheme proposed here for the northwestern corner of South America shows an Early Jurassic, linear subduction-related magmatic arc evolving to Late Jurassic rift-related setting associated to the opening of the Proto-Caribbean Ocean and westward retreat of the subduction zone. A similar tectonic evolution for the Jurassic has been proposed for Southwestern USA and the Nazas arc in Mexico.
publishDate 2006
dc.date.none.fl_str_mv 2006-12
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/11336/75876
Bayona, Germán; Rapalini, Augusto Ernesto; Costanzo-Alvarez, Vincenzo; Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America; Terra Scientific Publ Co; Earth Planets And Space; 58; 10; 12-2006; 1255-1272
1343-8832
CONICET Digital
CONICET
url http://hdl.handle.net/11336/75876
identifier_str_mv Bayona, Germán; Rapalini, Augusto Ernesto; Costanzo-Alvarez, Vincenzo; Paleomagnetism in Mesozoic rocks of the Northern Andes and its implications in Mesozoic tectonics of northwestern South America; Terra Scientific Publ Co; Earth Planets And Space; 58; 10; 12-2006; 1255-1272
1343-8832
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://earth-planets-space.springeropen.com/articles/10.1186/BF03352621
info:eu-repo/semantics/altIdentifier/doi/10.1186/BF03352621
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 Terra Scientific Publ Co
publisher.none.fl_str_mv Terra Scientific Publ Co
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
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score 15.811543

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