Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems

Autores
Torres Carbonell, Pablo Juan; Olivero, Eduardo Bernardo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We made a detailed facies analysis of well exposed Eocene foredeep and wedge-top successions in the SE Austral Basin of eastern Tierra del Fuego, Argentina, contributing to a better understanding of its patterns of sand dispersal. The analysis reveals that these successions constitute portions of turbidite systems with recurrent facies associations, interpreted as channel, channel-margin and levée depositional elements. The channel facies, paleocurrents and interpreted paleogeography suggest that the studied successions form the transfer zone of the turbidite systems that fed the foreland basin. We hypothesize that the SE Austral Basin, which forms the transition between the Austral and Malvinas Basins, acted as an east-west conduit for sediments sourced at the Fuegian Andes and transported to a deeper depositional zone in the SW Malvinas Basin. The fill of the channels in the transfer zone involved a large amount of turbidity flows, which in addition to the evidence of levée confinement in the studied deposits suggests that the sandier portion of the flows was able to reach the depositional zone, were mostly unconfined (sheeted) sand bodies may have formed. In addition, overbank sand bodies were deposited within the transfer zone, associated to processes of flow overspill. Both types of sand bodies constitute potential reservoirs in this hydrocarbon producing basin, implying that the Eocene SE Austral Basin, and the ultimate zone of deposition in the SW Malvinas Basin may constitute major prospects for hydrocarbon exploration. The proposed model define a new perspective for future research on the sedimentologic and stratigraphic evolution of the SE portion of the Austral Basin.
Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Materia
AUSTRAL-MALVINAS BASINS TRANSITION
DEPOSITIONAL ZONE
EOCENE TURBIDITE SYSTEMS
FACIES ANALYSIS
SAND DISPERSAL
TRANSFER ZONE
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:11336/127368
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/127368
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systemsTorres Carbonell, Pablo JuanOlivero, Eduardo BernardoAUSTRAL-MALVINAS BASINS TRANSITIONDEPOSITIONAL ZONEEOCENE TURBIDITE SYSTEMSFACIES ANALYSISSAND DISPERSALTRANSFER ZONEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1We made a detailed facies analysis of well exposed Eocene foredeep and wedge-top successions in the SE Austral Basin of eastern Tierra del Fuego, Argentina, contributing to a better understanding of its patterns of sand dispersal. The analysis reveals that these successions constitute portions of turbidite systems with recurrent facies associations, interpreted as channel, channel-margin and levée depositional elements. The channel facies, paleocurrents and interpreted paleogeography suggest that the studied successions form the transfer zone of the turbidite systems that fed the foreland basin. We hypothesize that the SE Austral Basin, which forms the transition between the Austral and Malvinas Basins, acted as an east-west conduit for sediments sourced at the Fuegian Andes and transported to a deeper depositional zone in the SW Malvinas Basin. The fill of the channels in the transfer zone involved a large amount of turbidity flows, which in addition to the evidence of levée confinement in the studied deposits suggests that the sandier portion of the flows was able to reach the depositional zone, were mostly unconfined (sheeted) sand bodies may have formed. In addition, overbank sand bodies were deposited within the transfer zone, associated to processes of flow overspill. Both types of sand bodies constitute potential reservoirs in this hydrocarbon producing basin, implying that the Eocene SE Austral Basin, and the ultimate zone of deposition in the SW Malvinas Basin may constitute major prospects for hydrocarbon exploration. The proposed model define a new perspective for future research on the sedimentologic and stratigraphic evolution of the SE portion of the Austral Basin.Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaPergamon-Elsevier Science Ltd2012-02info: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/11336/127368Torres Carbonell, Pablo Juan; Olivero, Eduardo Bernardo; Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 33; 1; 2-2012; 80-1010895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981111001131info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2011.08.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:01Zoai:ri.conicet.gov.ar:11336/127368instacron: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:34982025-09-03 09:55:02.111CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems
title Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems
spellingShingle Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems
Torres Carbonell, Pablo Juan
AUSTRAL-MALVINAS BASINS TRANSITION
DEPOSITIONAL ZONE
EOCENE TURBIDITE SYSTEMS
FACIES ANALYSIS
SAND DISPERSAL
TRANSFER ZONE
title_short Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems
title_full Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems
title_fullStr Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems
title_full_unstemmed Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems
title_sort Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems
dc.creator.none.fl_str_mv Torres Carbonell, Pablo Juan
Olivero, Eduardo Bernardo
author Torres Carbonell, Pablo Juan
author_facet Torres Carbonell, Pablo Juan
Olivero, Eduardo Bernardo
author_role author
author2 Olivero, Eduardo Bernardo
author2_role author
dc.subject.none.fl_str_mv AUSTRAL-MALVINAS BASINS TRANSITION
DEPOSITIONAL ZONE
EOCENE TURBIDITE SYSTEMS
FACIES ANALYSIS
SAND DISPERSAL
TRANSFER ZONE
topic AUSTRAL-MALVINAS BASINS TRANSITION
DEPOSITIONAL ZONE
EOCENE TURBIDITE SYSTEMS
FACIES ANALYSIS
SAND DISPERSAL
TRANSFER ZONE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We made a detailed facies analysis of well exposed Eocene foredeep and wedge-top successions in the SE Austral Basin of eastern Tierra del Fuego, Argentina, contributing to a better understanding of its patterns of sand dispersal. The analysis reveals that these successions constitute portions of turbidite systems with recurrent facies associations, interpreted as channel, channel-margin and levée depositional elements. The channel facies, paleocurrents and interpreted paleogeography suggest that the studied successions form the transfer zone of the turbidite systems that fed the foreland basin. We hypothesize that the SE Austral Basin, which forms the transition between the Austral and Malvinas Basins, acted as an east-west conduit for sediments sourced at the Fuegian Andes and transported to a deeper depositional zone in the SW Malvinas Basin. The fill of the channels in the transfer zone involved a large amount of turbidity flows, which in addition to the evidence of levée confinement in the studied deposits suggests that the sandier portion of the flows was able to reach the depositional zone, were mostly unconfined (sheeted) sand bodies may have formed. In addition, overbank sand bodies were deposited within the transfer zone, associated to processes of flow overspill. Both types of sand bodies constitute potential reservoirs in this hydrocarbon producing basin, implying that the Eocene SE Austral Basin, and the ultimate zone of deposition in the SW Malvinas Basin may constitute major prospects for hydrocarbon exploration. The proposed model define a new perspective for future research on the sedimentologic and stratigraphic evolution of the SE portion of the Austral Basin.
Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
description We made a detailed facies analysis of well exposed Eocene foredeep and wedge-top successions in the SE Austral Basin of eastern Tierra del Fuego, Argentina, contributing to a better understanding of its patterns of sand dispersal. The analysis reveals that these successions constitute portions of turbidite systems with recurrent facies associations, interpreted as channel, channel-margin and levée depositional elements. The channel facies, paleocurrents and interpreted paleogeography suggest that the studied successions form the transfer zone of the turbidite systems that fed the foreland basin. We hypothesize that the SE Austral Basin, which forms the transition between the Austral and Malvinas Basins, acted as an east-west conduit for sediments sourced at the Fuegian Andes and transported to a deeper depositional zone in the SW Malvinas Basin. The fill of the channels in the transfer zone involved a large amount of turbidity flows, which in addition to the evidence of levée confinement in the studied deposits suggests that the sandier portion of the flows was able to reach the depositional zone, were mostly unconfined (sheeted) sand bodies may have formed. In addition, overbank sand bodies were deposited within the transfer zone, associated to processes of flow overspill. Both types of sand bodies constitute potential reservoirs in this hydrocarbon producing basin, implying that the Eocene SE Austral Basin, and the ultimate zone of deposition in the SW Malvinas Basin may constitute major prospects for hydrocarbon exploration. The proposed model define a new perspective for future research on the sedimentologic and stratigraphic evolution of the SE portion of the Austral Basin.
publishDate 2012
dc.date.none.fl_str_mv 2012-02
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/11336/127368
Torres Carbonell, Pablo Juan; Olivero, Eduardo Bernardo; Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 33; 1; 2-2012; 80-101
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/127368
identifier_str_mv Torres Carbonell, Pablo Juan; Olivero, Eduardo Bernardo; Sand dispersal in the southeastern Austral Basin, Tierra del Fuego, Argentina: Outcrop insights from Eocene channeled turbidite systems; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 33; 1; 2-2012; 80-101
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/http://www.sciencedirect.com/science/article/pii/S0895981111001131
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2011.08.002
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 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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score 13.13397

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