A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance

Autores
Aramendía, Inés; Ramos, Miguel Esteban; Geuna, Silvana Evangelina; Cuitiño, José Ignacio; Ghiglione, Matias
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sedimentologic studies together with preliminary anisotropy of magnetic susceptibility (AMS) analysis were carried out in a very particular and intriguing Lower Cretaceous depocenter in the northern Austral-Magallanes basin, in order to elucidate its geodynamic setting. Aptian-Albian regressive sequences from the coastal Río Belgrano Formation and the fluvial conglomerates of Río Tarde Formation prograded into the regionally distributed marine sequence from Río Mayer Formation. This “early” progradation of continental environments is a characteristic of the northern sector of the basin, since marine conditions prevailed up to Campanian times towards the south. The tectonic context indicates a sudden passage from a marine to a deltaic and continental river system occurred during the uplift of the Northern Patagonian Andes and extra-Andean Patagonia. Our sedimentologic observations suggest a Barremian to Aptian regression, probably driven by the generalized uplift of surrounding blocks. AMS data indicates that a tectonic overprint of the original magnetic fabric was likely the product of E-W shortening applied soon after deposition, representing one of the earliest evidences of Andean deformation. Although the sedimentary setting was broadly placed in the retro-arc, our data helps to place the specific tectonic environment of the depocenter that is still little known and open to debate.
Fil: Aramendía, Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Ramos, Miguel Esteban. 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: Geuna, Silvana Evangelina. 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; Argentina
Fil: Cuitiño, José Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Ghiglione, Matias. 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
Materia
ANISOTROPY OF MAGNETIC SUSCEPTIBILITY (AMS)
AUSTRAL-MAGALLANES BASIN
CRETACEOUS
PALEOMAGNETISM
PATAGONIAN ANDES
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:11336/84950
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significanceAramendía, InésRamos, Miguel EstebanGeuna, Silvana EvangelinaCuitiño, José IgnacioGhiglione, MatiasANISOTROPY OF MAGNETIC SUSCEPTIBILITY (AMS)AUSTRAL-MAGALLANES BASINCRETACEOUSPALEOMAGNETISMPATAGONIAN ANDEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Sedimentologic studies together with preliminary anisotropy of magnetic susceptibility (AMS) analysis were carried out in a very particular and intriguing Lower Cretaceous depocenter in the northern Austral-Magallanes basin, in order to elucidate its geodynamic setting. Aptian-Albian regressive sequences from the coastal Río Belgrano Formation and the fluvial conglomerates of Río Tarde Formation prograded into the regionally distributed marine sequence from Río Mayer Formation. This “early” progradation of continental environments is a characteristic of the northern sector of the basin, since marine conditions prevailed up to Campanian times towards the south. The tectonic context indicates a sudden passage from a marine to a deltaic and continental river system occurred during the uplift of the Northern Patagonian Andes and extra-Andean Patagonia. Our sedimentologic observations suggest a Barremian to Aptian regression, probably driven by the generalized uplift of surrounding blocks. AMS data indicates that a tectonic overprint of the original magnetic fabric was likely the product of E-W shortening applied soon after deposition, representing one of the earliest evidences of Andean deformation. Although the sedimentary setting was broadly placed in the retro-arc, our data helps to place the specific tectonic environment of the depocenter that is still little known and open to debate.Fil: Aramendía, Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Ramos, Miguel Esteban. 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: Geuna, Silvana Evangelina. 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: Cuitiño, José Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Ghiglione, Matias. 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"; ArgentinaPergamon-Elsevier Science Ltd2018-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/84950Aramendía, Inés; Ramos, Miguel Esteban; Geuna, Silvana Evangelina; Cuitiño, José Ignacio; Ghiglione, Matias; A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 86; 10-2018; 54-690895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0895981117304893info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2018.06.010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:36:52Zoai:ri.conicet.gov.ar:11336/84950instacron: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:34982025-10-15 14:36:52.966CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
title A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
spellingShingle A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
Aramendía, Inés
ANISOTROPY OF MAGNETIC SUSCEPTIBILITY (AMS)
AUSTRAL-MAGALLANES BASIN
CRETACEOUS
PALEOMAGNETISM
PATAGONIAN ANDES
title_short A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
title_full A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
title_fullStr A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
title_full_unstemmed A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
title_sort A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance
dc.creator.none.fl_str_mv Aramendía, Inés
Ramos, Miguel Esteban
Geuna, Silvana Evangelina
Cuitiño, José Ignacio
Ghiglione, Matias
author Aramendía, Inés
author_facet Aramendía, Inés
Ramos, Miguel Esteban
Geuna, Silvana Evangelina
Cuitiño, José Ignacio
Ghiglione, Matias
author_role author
author2 Ramos, Miguel Esteban
Geuna, Silvana Evangelina
Cuitiño, José Ignacio
Ghiglione, Matias
author2_role author
author
author
author
dc.subject.none.fl_str_mv ANISOTROPY OF MAGNETIC SUSCEPTIBILITY (AMS)
AUSTRAL-MAGALLANES BASIN
CRETACEOUS
PALEOMAGNETISM
PATAGONIAN ANDES
topic ANISOTROPY OF MAGNETIC SUSCEPTIBILITY (AMS)
AUSTRAL-MAGALLANES BASIN
CRETACEOUS
PALEOMAGNETISM
PATAGONIAN ANDES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Sedimentologic studies together with preliminary anisotropy of magnetic susceptibility (AMS) analysis were carried out in a very particular and intriguing Lower Cretaceous depocenter in the northern Austral-Magallanes basin, in order to elucidate its geodynamic setting. Aptian-Albian regressive sequences from the coastal Río Belgrano Formation and the fluvial conglomerates of Río Tarde Formation prograded into the regionally distributed marine sequence from Río Mayer Formation. This “early” progradation of continental environments is a characteristic of the northern sector of the basin, since marine conditions prevailed up to Campanian times towards the south. The tectonic context indicates a sudden passage from a marine to a deltaic and continental river system occurred during the uplift of the Northern Patagonian Andes and extra-Andean Patagonia. Our sedimentologic observations suggest a Barremian to Aptian regression, probably driven by the generalized uplift of surrounding blocks. AMS data indicates that a tectonic overprint of the original magnetic fabric was likely the product of E-W shortening applied soon after deposition, representing one of the earliest evidences of Andean deformation. Although the sedimentary setting was broadly placed in the retro-arc, our data helps to place the specific tectonic environment of the depocenter that is still little known and open to debate.
Fil: Aramendía, Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Ramos, Miguel Esteban. 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: Geuna, Silvana Evangelina. 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; Argentina
Fil: Cuitiño, José Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Ghiglione, Matias. 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
description Sedimentologic studies together with preliminary anisotropy of magnetic susceptibility (AMS) analysis were carried out in a very particular and intriguing Lower Cretaceous depocenter in the northern Austral-Magallanes basin, in order to elucidate its geodynamic setting. Aptian-Albian regressive sequences from the coastal Río Belgrano Formation and the fluvial conglomerates of Río Tarde Formation prograded into the regionally distributed marine sequence from Río Mayer Formation. This “early” progradation of continental environments is a characteristic of the northern sector of the basin, since marine conditions prevailed up to Campanian times towards the south. The tectonic context indicates a sudden passage from a marine to a deltaic and continental river system occurred during the uplift of the Northern Patagonian Andes and extra-Andean Patagonia. Our sedimentologic observations suggest a Barremian to Aptian regression, probably driven by the generalized uplift of surrounding blocks. AMS data indicates that a tectonic overprint of the original magnetic fabric was likely the product of E-W shortening applied soon after deposition, representing one of the earliest evidences of Andean deformation. Although the sedimentary setting was broadly placed in the retro-arc, our data helps to place the specific tectonic environment of the depocenter that is still little known and open to debate.
publishDate 2018
dc.date.none.fl_str_mv 2018-10
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/11336/84950
Aramendía, Inés; Ramos, Miguel Esteban; Geuna, Silvana Evangelina; Cuitiño, José Ignacio; Ghiglione, Matias; A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 86; 10-2018; 54-69
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/84950
identifier_str_mv Aramendía, Inés; Ramos, Miguel Esteban; Geuna, Silvana Evangelina; Cuitiño, José Ignacio; Ghiglione, Matias; A multidisciplinary study of the Lower Cretaceous marine to continental transition in the northern Austral-Magallanes basin and its geodynamic significance; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 86; 10-2018; 54-69
0895-9811
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://linkinghub.elsevier.com/retrieve/pii/S0895981117304893
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2018.06.010
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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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