Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation

Autores
Ding, Xuesong; Dávila Kurbán, Federico; Lithgow Bertelloni, Carolina
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Subduction of bathymetric anomalies (e.g., an active ridge) can alter the morphology of subducted slabs and their coupling to surface processes. A natural laboratory to study these effects is the subduction of the Oceanic Chilean Ridge beneath the South American plate, which led to the formation of the Patagonian slab window. Its formation and subsequent northward migration contributed to the regression of Patagoniense sea and exhumation of marine strata to their present elevation. To date, there is no quantitative analysis of the effects on the sediment routing system of the slab window. We modeled the Neogene topographic change and foreland sedimentary evolution from the Andean Cordillera to Atlantic margin. Our results show that subcrustal-driven subsidence correlated with accelerated subduction of the Nazca plate is required to explain the timing of the Patagonian transgression and thickness and spatial extent of marine beds during the incursion. In other words, traditional mechanisms, such as foreland flexure and global sea-level rise, are insufficient. The subsequent regression and accumulation of mid-Miocene alluvial-fluvial deposits were associated with the growth of the Cordillera and a possible flattening of Nazca subduction in the middle Miocene. Isostatic uplift of ∼1 km due to lithospheric thinning during slab window formation can explain the foreland exhumation, sediment bypass, and increases in the offshore sedimentation rate. However, spatial-temporal varying dynamic uplift is required to explain the along-strike variations in foreland sedimentation. Our study provides new insights into the interplay between slab window formation, crustal deformation, and landscape evolution.
Fil: Ding, Xuesong. University of California at Los Angeles; Estados Unidos
Fil: Dávila Kurbán, Federico. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Lithgow Bertelloni, Carolina. University of California at Los Angeles; Estados Unidos
Materia
DYNAMIC TOPOGRAPHY
LANDSCAPE EVOLUTION MODELING
PATAGONIAN SLAB WINDOW
RETROARC FORELAND BASIN
SOURCE-TO-SINK SEDIMENT TRANSPORT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/226222

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network_name_str CONICET Digital (CONICET)
spelling Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window FormationDing, XuesongDávila Kurbán, FedericoLithgow Bertelloni, CarolinaDYNAMIC TOPOGRAPHYLANDSCAPE EVOLUTION MODELINGPATAGONIAN SLAB WINDOWRETROARC FORELAND BASINSOURCE-TO-SINK SEDIMENT TRANSPORThttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Subduction of bathymetric anomalies (e.g., an active ridge) can alter the morphology of subducted slabs and their coupling to surface processes. A natural laboratory to study these effects is the subduction of the Oceanic Chilean Ridge beneath the South American plate, which led to the formation of the Patagonian slab window. Its formation and subsequent northward migration contributed to the regression of Patagoniense sea and exhumation of marine strata to their present elevation. To date, there is no quantitative analysis of the effects on the sediment routing system of the slab window. We modeled the Neogene topographic change and foreland sedimentary evolution from the Andean Cordillera to Atlantic margin. Our results show that subcrustal-driven subsidence correlated with accelerated subduction of the Nazca plate is required to explain the timing of the Patagonian transgression and thickness and spatial extent of marine beds during the incursion. In other words, traditional mechanisms, such as foreland flexure and global sea-level rise, are insufficient. The subsequent regression and accumulation of mid-Miocene alluvial-fluvial deposits were associated with the growth of the Cordillera and a possible flattening of Nazca subduction in the middle Miocene. Isostatic uplift of ∼1 km due to lithospheric thinning during slab window formation can explain the foreland exhumation, sediment bypass, and increases in the offshore sedimentation rate. However, spatial-temporal varying dynamic uplift is required to explain the along-strike variations in foreland sedimentation. Our study provides new insights into the interplay between slab window formation, crustal deformation, and landscape evolution.Fil: Ding, Xuesong. University of California at Los Angeles; Estados UnidosFil: Dávila Kurbán, Federico. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Lithgow Bertelloni, Carolina. University of California at Los Angeles; Estados UnidosAmerican Geophysical Union2023-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/226222Ding, Xuesong; Dávila Kurbán, Federico; Lithgow Bertelloni, Carolina; Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation; American Geophysical Union; Geochemistry Geophysics Geosystems; 24; 5; 5-2023; 1-151525-2027CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022GC010844info:eu-repo/semantics/altIdentifier/doi/10.1029/2022GC010844info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:40Zoai:ri.conicet.gov.ar:11336/226222instacron: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 09:50:41.039CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
title Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
spellingShingle Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
Ding, Xuesong
DYNAMIC TOPOGRAPHY
LANDSCAPE EVOLUTION MODELING
PATAGONIAN SLAB WINDOW
RETROARC FORELAND BASIN
SOURCE-TO-SINK SEDIMENT TRANSPORT
title_short Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
title_full Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
title_fullStr Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
title_full_unstemmed Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
title_sort Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
dc.creator.none.fl_str_mv Ding, Xuesong
Dávila Kurbán, Federico
Lithgow Bertelloni, Carolina
author Ding, Xuesong
author_facet Ding, Xuesong
Dávila Kurbán, Federico
Lithgow Bertelloni, Carolina
author_role author
author2 Dávila Kurbán, Federico
Lithgow Bertelloni, Carolina
author2_role author
author
dc.subject.none.fl_str_mv DYNAMIC TOPOGRAPHY
LANDSCAPE EVOLUTION MODELING
PATAGONIAN SLAB WINDOW
RETROARC FORELAND BASIN
SOURCE-TO-SINK SEDIMENT TRANSPORT
topic DYNAMIC TOPOGRAPHY
LANDSCAPE EVOLUTION MODELING
PATAGONIAN SLAB WINDOW
RETROARC FORELAND BASIN
SOURCE-TO-SINK SEDIMENT TRANSPORT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Subduction of bathymetric anomalies (e.g., an active ridge) can alter the morphology of subducted slabs and their coupling to surface processes. A natural laboratory to study these effects is the subduction of the Oceanic Chilean Ridge beneath the South American plate, which led to the formation of the Patagonian slab window. Its formation and subsequent northward migration contributed to the regression of Patagoniense sea and exhumation of marine strata to their present elevation. To date, there is no quantitative analysis of the effects on the sediment routing system of the slab window. We modeled the Neogene topographic change and foreland sedimentary evolution from the Andean Cordillera to Atlantic margin. Our results show that subcrustal-driven subsidence correlated with accelerated subduction of the Nazca plate is required to explain the timing of the Patagonian transgression and thickness and spatial extent of marine beds during the incursion. In other words, traditional mechanisms, such as foreland flexure and global sea-level rise, are insufficient. The subsequent regression and accumulation of mid-Miocene alluvial-fluvial deposits were associated with the growth of the Cordillera and a possible flattening of Nazca subduction in the middle Miocene. Isostatic uplift of ∼1 km due to lithospheric thinning during slab window formation can explain the foreland exhumation, sediment bypass, and increases in the offshore sedimentation rate. However, spatial-temporal varying dynamic uplift is required to explain the along-strike variations in foreland sedimentation. Our study provides new insights into the interplay between slab window formation, crustal deformation, and landscape evolution.
Fil: Ding, Xuesong. University of California at Los Angeles; Estados Unidos
Fil: Dávila Kurbán, Federico. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Lithgow Bertelloni, Carolina. University of California at Los Angeles; Estados Unidos
description Subduction of bathymetric anomalies (e.g., an active ridge) can alter the morphology of subducted slabs and their coupling to surface processes. A natural laboratory to study these effects is the subduction of the Oceanic Chilean Ridge beneath the South American plate, which led to the formation of the Patagonian slab window. Its formation and subsequent northward migration contributed to the regression of Patagoniense sea and exhumation of marine strata to their present elevation. To date, there is no quantitative analysis of the effects on the sediment routing system of the slab window. We modeled the Neogene topographic change and foreland sedimentary evolution from the Andean Cordillera to Atlantic margin. Our results show that subcrustal-driven subsidence correlated with accelerated subduction of the Nazca plate is required to explain the timing of the Patagonian transgression and thickness and spatial extent of marine beds during the incursion. In other words, traditional mechanisms, such as foreland flexure and global sea-level rise, are insufficient. The subsequent regression and accumulation of mid-Miocene alluvial-fluvial deposits were associated with the growth of the Cordillera and a possible flattening of Nazca subduction in the middle Miocene. Isostatic uplift of ∼1 km due to lithospheric thinning during slab window formation can explain the foreland exhumation, sediment bypass, and increases in the offshore sedimentation rate. However, spatial-temporal varying dynamic uplift is required to explain the along-strike variations in foreland sedimentation. Our study provides new insights into the interplay between slab window formation, crustal deformation, and landscape evolution.
publishDate 2023
dc.date.none.fl_str_mv 2023-05
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/11336/226222
Ding, Xuesong; Dávila Kurbán, Federico; Lithgow Bertelloni, Carolina; Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation; American Geophysical Union; Geochemistry Geophysics Geosystems; 24; 5; 5-2023; 1-15
1525-2027
CONICET Digital
CONICET
url http://hdl.handle.net/11336/226222
identifier_str_mv Ding, Xuesong; Dávila Kurbán, Federico; Lithgow Bertelloni, Carolina; Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation; American Geophysical Union; Geochemistry Geophysics Geosystems; 24; 5; 5-2023; 1-15
1525-2027
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://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022GC010844
info:eu-repo/semantics/altIdentifier/doi/10.1029/2022GC010844
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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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