The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution

Autores
Ramos, Victor Alberto; Chemale, Farid; Lovecchio, Juan Pablo; Naipauer, Maximiliano
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The latest studies on the tectonic evolution of the Malvinas (Falkland) Islands and their adjacent continental plateau further east are analyzed to assess a long controversy regarding the origin of these islands. Although there has been a controversy for several decades on this subject, new technologies and exploratory drilling have brought new data, however the debate of the geological evolution of this area remains open. The two dominant hypotheses are analyzed by assessing the eventual collision between the islands and the South American continent, the presence of a large transcontinental fault such as Gastre, the potential 180º rotation of the Malvinas Islands, and the occurrence of a mega-decollement with opposite vergence. These hypotheses are contrasted with the processes that have occurred in Patagonia, especially those based on the new isotopic data on the Maurice Ewing Bank at the eastern end of the Malvinas Plateau, and the current knowledge of the adjacent Malvinas Basin. The new data highlights the inconsistencies of certain models that proposed these islands migrated from the eastern African coasts near Natal, to their current position and rotated 180º on a vertical axis. The new observations are consolidating the hypothesis that postulates that the islands have been part of the South American continent since before the Paleozoic.
Fil: Ramos, Victor Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Chemale, Farid. Universidad de Vale do Rio dos Sinos; Brasil
Fil: Lovecchio, Juan Pablo. Yacimiento Petroliferos Fiscal S.a.; Argentina
Fil: Naipauer, Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotópica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentina
Materia
Malvinas plateau
Rotation
Collision
Microcontinent
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:11336/144534
Acceder
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spelling The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolutionRamos, Victor AlbertoChemale, FaridLovecchio, Juan PabloNaipauer, MaximilianoMalvinas plateauRotationCollisionMicrocontinenthttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The latest studies on the tectonic evolution of the Malvinas (Falkland) Islands and their adjacent continental plateau further east are analyzed to assess a long controversy regarding the origin of these islands. Although there has been a controversy for several decades on this subject, new technologies and exploratory drilling have brought new data, however the debate of the geological evolution of this area remains open. The two dominant hypotheses are analyzed by assessing the eventual collision between the islands and the South American continent, the presence of a large transcontinental fault such as Gastre, the potential 180º rotation of the Malvinas Islands, and the occurrence of a mega-decollement with opposite vergence. These hypotheses are contrasted with the processes that have occurred in Patagonia, especially those based on the new isotopic data on the Maurice Ewing Bank at the eastern end of the Malvinas Plateau, and the current knowledge of the adjacent Malvinas Basin. The new data highlights the inconsistencies of certain models that proposed these islands migrated from the eastern African coasts near Natal, to their current position and rotated 180º on a vertical axis. The new observations are consolidating the hypothesis that postulates that the islands have been part of the South American continent since before the Paleozoic.Fil: Ramos, Victor Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Chemale, Farid. Universidad de Vale do Rio dos Sinos; BrasilFil: Lovecchio, Juan Pablo. Yacimiento Petroliferos Fiscal S.a.; ArgentinaFil: Naipauer, Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotópica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; ArgentinaCentro de Estudios sobre Ciencia, Desarrollo y Educación Superior2020-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/144534Ramos, Victor Alberto; Chemale, Farid; Lovecchio, Juan Pablo; Naipauer, Maximiliano; The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution; Centro de Estudios sobre Ciencia, Desarrollo y Educación Superior; Science Reviews form the end of the World; 1; 1; 7-2020; 6-182683-9288CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.scirevfew.net/index.php/sciencereviews/article/view/23info:eu-repo/semantics/altIdentifier/doi/10.52712/sciencereviews.v1i1.23info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:41:47Zoai:ri.conicet.gov.ar:11336/144534instacron: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:34982025-10-22 11:41:47.681CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution
title The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution
spellingShingle The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution
Ramos, Victor Alberto
Malvinas plateau
Rotation
Collision
Microcontinent
title_short The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution
title_full The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution
title_fullStr The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution
title_full_unstemmed The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution
title_sort The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution
dc.creator.none.fl_str_mv Ramos, Victor Alberto
Chemale, Farid
Lovecchio, Juan Pablo
Naipauer, Maximiliano
author Ramos, Victor Alberto
author_facet Ramos, Victor Alberto
Chemale, Farid
Lovecchio, Juan Pablo
Naipauer, Maximiliano
author_role author
author2 Chemale, Farid
Lovecchio, Juan Pablo
Naipauer, Maximiliano
author2_role author
author
author
dc.subject.none.fl_str_mv Malvinas plateau
Rotation
Collision
Microcontinent
topic Malvinas plateau
Rotation
Collision
Microcontinent
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The latest studies on the tectonic evolution of the Malvinas (Falkland) Islands and their adjacent continental plateau further east are analyzed to assess a long controversy regarding the origin of these islands. Although there has been a controversy for several decades on this subject, new technologies and exploratory drilling have brought new data, however the debate of the geological evolution of this area remains open. The two dominant hypotheses are analyzed by assessing the eventual collision between the islands and the South American continent, the presence of a large transcontinental fault such as Gastre, the potential 180º rotation of the Malvinas Islands, and the occurrence of a mega-decollement with opposite vergence. These hypotheses are contrasted with the processes that have occurred in Patagonia, especially those based on the new isotopic data on the Maurice Ewing Bank at the eastern end of the Malvinas Plateau, and the current knowledge of the adjacent Malvinas Basin. The new data highlights the inconsistencies of certain models that proposed these islands migrated from the eastern African coasts near Natal, to their current position and rotated 180º on a vertical axis. The new observations are consolidating the hypothesis that postulates that the islands have been part of the South American continent since before the Paleozoic.
Fil: Ramos, Victor Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Chemale, Farid. Universidad de Vale do Rio dos Sinos; Brasil
Fil: Lovecchio, Juan Pablo. Yacimiento Petroliferos Fiscal S.a.; Argentina
Fil: Naipauer, Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotópica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentina
description The latest studies on the tectonic evolution of the Malvinas (Falkland) Islands and their adjacent continental plateau further east are analyzed to assess a long controversy regarding the origin of these islands. Although there has been a controversy for several decades on this subject, new technologies and exploratory drilling have brought new data, however the debate of the geological evolution of this area remains open. The two dominant hypotheses are analyzed by assessing the eventual collision between the islands and the South American continent, the presence of a large transcontinental fault such as Gastre, the potential 180º rotation of the Malvinas Islands, and the occurrence of a mega-decollement with opposite vergence. These hypotheses are contrasted with the processes that have occurred in Patagonia, especially those based on the new isotopic data on the Maurice Ewing Bank at the eastern end of the Malvinas Plateau, and the current knowledge of the adjacent Malvinas Basin. The new data highlights the inconsistencies of certain models that proposed these islands migrated from the eastern African coasts near Natal, to their current position and rotated 180º on a vertical axis. The new observations are consolidating the hypothesis that postulates that the islands have been part of the South American continent since before the Paleozoic.
publishDate 2020
dc.date.none.fl_str_mv 2020-07
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/11336/144534
Ramos, Victor Alberto; Chemale, Farid; Lovecchio, Juan Pablo; Naipauer, Maximiliano; The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution; Centro de Estudios sobre Ciencia, Desarrollo y Educación Superior; Science Reviews form the end of the World; 1; 1; 7-2020; 6-18
2683-9288
CONICET Digital
CONICET
url http://hdl.handle.net/11336/144534
identifier_str_mv Ramos, Victor Alberto; Chemale, Farid; Lovecchio, Juan Pablo; Naipauer, Maximiliano; The Malvinas (Falkland) Plateau derived from Africa?: Constraints for its tectonic evolution; Centro de Estudios sobre Ciencia, Desarrollo y Educación Superior; Science Reviews form the end of the World; 1; 1; 7-2020; 6-18
2683-9288
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.scirevfew.net/index.php/sciencereviews/article/view/23
info:eu-repo/semantics/altIdentifier/doi/10.52712/sciencereviews.v1i1.23
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
application/pdf
dc.publisher.none.fl_str_mv Centro de Estudios sobre Ciencia, Desarrollo y Educación Superior
publisher.none.fl_str_mv Centro de Estudios sobre Ciencia, Desarrollo y Educación Superior
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
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score 12.982451

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