Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt

Autores
Torres Carbonell, Pablo Juan; Dimieri, Luis Vicente; Olivero, Eduardo Bernardo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Time-calibrated balanced-cross sections of the eastern Fuegian Thrust-Fold Belt reveal many complex pro- and retro-vergent structures, rooted at the base of Cretaceous and within Paleocene rocks. These structures involve the unconformity-bounded syntectonic sequences of the Austral foreland basin, and accommodate a minimum shortening of c. 41.8 km. The complex kinematics of the thrust-fold belt are recorded by: (1) propagation of the basal décollement into the foreland, and forward-directed thrusting during the Ypresian; (2) out-of-sequence thrusting in the Lutetian; (3) subsidence and sedimentation from the Late Lutetian to the Oligocene; (4) backthrusting during the Oligocene; and (5) a renewed stage of forward-directed thrusting between the latest Oligocene and the Early Miocene, probably related to accretion below the sole fault in the hinterland. This thrust sequence is interpreted as the result of critical Coulomb wedge behaviour during the first stage of thrust-fold belt expansion, with accretion of new material that led to a taper decrease. The subsequent period of internal deformation corresponds to a subcritical stage, during which backthrusting accommodates significant shortening (c. 15%). After growth and taper increase, the last period of forward thrusting at the wedge's front marks the inception of a new critical stage.
Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Dimieri, Luis Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Materia
Coulomb Wedge
Fuegian Andes
Progresive Deformation
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:11336/73192
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold BeltTorres Carbonell, Pablo JuanDimieri, Luis VicenteOlivero, Eduardo BernardoCoulomb WedgeFuegian AndesProgresive Deformationhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Time-calibrated balanced-cross sections of the eastern Fuegian Thrust-Fold Belt reveal many complex pro- and retro-vergent structures, rooted at the base of Cretaceous and within Paleocene rocks. These structures involve the unconformity-bounded syntectonic sequences of the Austral foreland basin, and accommodate a minimum shortening of c. 41.8 km. The complex kinematics of the thrust-fold belt are recorded by: (1) propagation of the basal décollement into the foreland, and forward-directed thrusting during the Ypresian; (2) out-of-sequence thrusting in the Lutetian; (3) subsidence and sedimentation from the Late Lutetian to the Oligocene; (4) backthrusting during the Oligocene; and (5) a renewed stage of forward-directed thrusting between the latest Oligocene and the Early Miocene, probably related to accretion below the sole fault in the hinterland. This thrust sequence is interpreted as the result of critical Coulomb wedge behaviour during the first stage of thrust-fold belt expansion, with accretion of new material that led to a taper decrease. The subsequent period of internal deformation corresponds to a subcritical stage, during which backthrusting accommodates significant shortening (c. 15%). After growth and taper increase, the last period of forward thrusting at the wedge's front marks the inception of a new critical stage.Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Dimieri, Luis Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaGeological Society Publications House2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/73192Torres Carbonell, Pablo Juan; Dimieri, Luis Vicente; Olivero, Eduardo Bernardo; Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt; Geological Society Publications House; Geological Society of London Special Publication; 349; 1-2011; 123-1470305-8719CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://sp.lyellcollection.org/content/349/1/123info:eu-repo/semantics/altIdentifier/doi/10.1144/SP349.7info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:55Zoai:ri.conicet.gov.ar:11336/73192instacron: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 10:10:55.579CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt
title Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt
spellingShingle Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt
Torres Carbonell, Pablo Juan
Coulomb Wedge
Fuegian Andes
Progresive Deformation
title_short Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt
title_full Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt
title_fullStr Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt
title_full_unstemmed Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt
title_sort Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt
dc.creator.none.fl_str_mv Torres Carbonell, Pablo Juan
Dimieri, Luis Vicente
Olivero, Eduardo Bernardo
author Torres Carbonell, Pablo Juan
author_facet Torres Carbonell, Pablo Juan
Dimieri, Luis Vicente
Olivero, Eduardo Bernardo
author_role author
author2 Dimieri, Luis Vicente
Olivero, Eduardo Bernardo
author2_role author
author
dc.subject.none.fl_str_mv Coulomb Wedge
Fuegian Andes
Progresive Deformation
topic Coulomb Wedge
Fuegian Andes
Progresive Deformation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Time-calibrated balanced-cross sections of the eastern Fuegian Thrust-Fold Belt reveal many complex pro- and retro-vergent structures, rooted at the base of Cretaceous and within Paleocene rocks. These structures involve the unconformity-bounded syntectonic sequences of the Austral foreland basin, and accommodate a minimum shortening of c. 41.8 km. The complex kinematics of the thrust-fold belt are recorded by: (1) propagation of the basal décollement into the foreland, and forward-directed thrusting during the Ypresian; (2) out-of-sequence thrusting in the Lutetian; (3) subsidence and sedimentation from the Late Lutetian to the Oligocene; (4) backthrusting during the Oligocene; and (5) a renewed stage of forward-directed thrusting between the latest Oligocene and the Early Miocene, probably related to accretion below the sole fault in the hinterland. This thrust sequence is interpreted as the result of critical Coulomb wedge behaviour during the first stage of thrust-fold belt expansion, with accretion of new material that led to a taper decrease. The subsequent period of internal deformation corresponds to a subcritical stage, during which backthrusting accommodates significant shortening (c. 15%). After growth and taper increase, the last period of forward thrusting at the wedge's front marks the inception of a new critical stage.
Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Dimieri, Luis Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Olivero, Eduardo Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
description Time-calibrated balanced-cross sections of the eastern Fuegian Thrust-Fold Belt reveal many complex pro- and retro-vergent structures, rooted at the base of Cretaceous and within Paleocene rocks. These structures involve the unconformity-bounded syntectonic sequences of the Austral foreland basin, and accommodate a minimum shortening of c. 41.8 km. The complex kinematics of the thrust-fold belt are recorded by: (1) propagation of the basal décollement into the foreland, and forward-directed thrusting during the Ypresian; (2) out-of-sequence thrusting in the Lutetian; (3) subsidence and sedimentation from the Late Lutetian to the Oligocene; (4) backthrusting during the Oligocene; and (5) a renewed stage of forward-directed thrusting between the latest Oligocene and the Early Miocene, probably related to accretion below the sole fault in the hinterland. This thrust sequence is interpreted as the result of critical Coulomb wedge behaviour during the first stage of thrust-fold belt expansion, with accretion of new material that led to a taper decrease. The subsequent period of internal deformation corresponds to a subcritical stage, during which backthrusting accommodates significant shortening (c. 15%). After growth and taper increase, the last period of forward thrusting at the wedge's front marks the inception of a new critical stage.
publishDate 2011
dc.date.none.fl_str_mv 2011-01
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/11336/73192
Torres Carbonell, Pablo Juan; Dimieri, Luis Vicente; Olivero, Eduardo Bernardo; Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt; Geological Society Publications House; Geological Society of London Special Publication; 349; 1-2011; 123-147
0305-8719
CONICET Digital
CONICET
url http://hdl.handle.net/11336/73192
identifier_str_mv Torres Carbonell, Pablo Juan; Dimieri, Luis Vicente; Olivero, Eduardo Bernardo; Progressive deformation of a Coulomb thrust wedge: The eastern Fuegian Andes Thrust-Fold Belt; Geological Society Publications House; Geological Society of London Special Publication; 349; 1-2011; 123-147
0305-8719
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://sp.lyellcollection.org/content/349/1/123
info:eu-repo/semantics/altIdentifier/doi/10.1144/SP349.7
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 Geological Society Publications House
publisher.none.fl_str_mv Geological Society Publications House
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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