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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/144534
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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 Técnicas2025-09-29T10:11:52Zoai: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:34982025-09-29 10:11:52.276CONICET 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 |
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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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1844614021099028480 |
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13.070432 |