Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina
- Autores
- Desiage, Pierre Arnaud; St Onge, Guillaume; Duchesne, Mathieu J.; Montero Serrano, Jean Carlos; Haller, Miguel Jorge F.
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This study presents the first detailed description of the upper sedimentary succession of the latePleistocene and Holocene deposits in the Gulf of San Jorge (Patagonia) based on several hundred kilometers of highresolution seismic (sparker) profiles and numerous sediment cores. High‐resolution seismic stratigraphy confirms the existence of a paleo‐fluvial network formed during sea‐level lowstands and buried by central basin estuarine deposits during the last marine transgression. Analyses of lithostratigraphy and radiocarbon ages indicate the onset of subtidal sedimentation at ~14 cal ka BP. Before the onset of subtidal conditions, the first steps of marine incursion seem to have led to the development of lagoonal/wind–tidal flat environments, advocating for a sea‐level stillstand. An abrupt increase in the log(Ti/Ca) ratio in a distinct multi‐centimeter‐thick layer and the identification of a wave‐ravinement surface suggest rapid sea‐level rise in the gulf prior to ~14 cal ka BP, consistent with Meltwater Pulse 1A. Overall, this study highlights the significant impact of sea‐level rise on sedimentation in the gulf from the onset of marine incursions to the mid‐Holocene, as well as the reduced contribution, as currently observed, of riverine inputs due to the progressive diminution and withdrawal of glacial drainage starting before the Holocene.
Fil: Desiage, Pierre Arnaud. Université du Québec a Montreal; Canadá
Fil: St Onge, Guillaume. Université du Québec a Montreal; Canadá
Fil: Duchesne, Mathieu J.. No especifíca;
Fil: Montero Serrano, Jean Carlos. Université du Québec a Montreal; Canadá
Fil: Haller, Miguel Jorge F.. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina - Materia
-
ELEMENTAL GEOCHEMISTRY
INCISED VALLEYS
MWP-1A
PATAGONIA
POSTGLACIAL SEA-LEVEL CHANGES - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/233814
Ver los metadatos del registro completo
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Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, ArgentinaDesiage, Pierre ArnaudSt Onge, GuillaumeDuchesne, Mathieu J.Montero Serrano, Jean CarlosHaller, Miguel Jorge F.ELEMENTAL GEOCHEMISTRYINCISED VALLEYSMWP-1APATAGONIAPOSTGLACIAL SEA-LEVEL CHANGEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This study presents the first detailed description of the upper sedimentary succession of the latePleistocene and Holocene deposits in the Gulf of San Jorge (Patagonia) based on several hundred kilometers of highresolution seismic (sparker) profiles and numerous sediment cores. High‐resolution seismic stratigraphy confirms the existence of a paleo‐fluvial network formed during sea‐level lowstands and buried by central basin estuarine deposits during the last marine transgression. Analyses of lithostratigraphy and radiocarbon ages indicate the onset of subtidal sedimentation at ~14 cal ka BP. Before the onset of subtidal conditions, the first steps of marine incursion seem to have led to the development of lagoonal/wind–tidal flat environments, advocating for a sea‐level stillstand. An abrupt increase in the log(Ti/Ca) ratio in a distinct multi‐centimeter‐thick layer and the identification of a wave‐ravinement surface suggest rapid sea‐level rise in the gulf prior to ~14 cal ka BP, consistent with Meltwater Pulse 1A. Overall, this study highlights the significant impact of sea‐level rise on sedimentation in the gulf from the onset of marine incursions to the mid‐Holocene, as well as the reduced contribution, as currently observed, of riverine inputs due to the progressive diminution and withdrawal of glacial drainage starting before the Holocene.Fil: Desiage, Pierre Arnaud. Université du Québec a Montreal; CanadáFil: St Onge, Guillaume. Université du Québec a Montreal; CanadáFil: Duchesne, Mathieu J.. No especifíca;Fil: Montero Serrano, Jean Carlos. Université du Québec a Montreal; CanadáFil: Haller, Miguel Jorge F.. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; ArgentinaJohn Wiley & Sons Ltd2023-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/233814Desiage, Pierre Arnaud; St Onge, Guillaume; Duchesne, Mathieu J.; Montero Serrano, Jean Carlos; Haller, Miguel Jorge F.; Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina; John Wiley & Sons Ltd; Journal Of Quaternary Science; 38; 5; 3-2023; 629-6460267-8179CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/jqs.3511info:eu-repo/semantics/altIdentifier/doi/10.1002/jqs.3511info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:39Zoai:ri.conicet.gov.ar:11336/233814instacron: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 09:44:39.933CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina |
title |
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina |
spellingShingle |
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina Desiage, Pierre Arnaud ELEMENTAL GEOCHEMISTRY INCISED VALLEYS MWP-1A PATAGONIA POSTGLACIAL SEA-LEVEL CHANGES |
title_short |
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina |
title_full |
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina |
title_fullStr |
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina |
title_full_unstemmed |
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina |
title_sort |
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina |
dc.creator.none.fl_str_mv |
Desiage, Pierre Arnaud St Onge, Guillaume Duchesne, Mathieu J. Montero Serrano, Jean Carlos Haller, Miguel Jorge F. |
author |
Desiage, Pierre Arnaud |
author_facet |
Desiage, Pierre Arnaud St Onge, Guillaume Duchesne, Mathieu J. Montero Serrano, Jean Carlos Haller, Miguel Jorge F. |
author_role |
author |
author2 |
St Onge, Guillaume Duchesne, Mathieu J. Montero Serrano, Jean Carlos Haller, Miguel Jorge F. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
ELEMENTAL GEOCHEMISTRY INCISED VALLEYS MWP-1A PATAGONIA POSTGLACIAL SEA-LEVEL CHANGES |
topic |
ELEMENTAL GEOCHEMISTRY INCISED VALLEYS MWP-1A PATAGONIA POSTGLACIAL SEA-LEVEL CHANGES |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
This study presents the first detailed description of the upper sedimentary succession of the latePleistocene and Holocene deposits in the Gulf of San Jorge (Patagonia) based on several hundred kilometers of highresolution seismic (sparker) profiles and numerous sediment cores. High‐resolution seismic stratigraphy confirms the existence of a paleo‐fluvial network formed during sea‐level lowstands and buried by central basin estuarine deposits during the last marine transgression. Analyses of lithostratigraphy and radiocarbon ages indicate the onset of subtidal sedimentation at ~14 cal ka BP. Before the onset of subtidal conditions, the first steps of marine incursion seem to have led to the development of lagoonal/wind–tidal flat environments, advocating for a sea‐level stillstand. An abrupt increase in the log(Ti/Ca) ratio in a distinct multi‐centimeter‐thick layer and the identification of a wave‐ravinement surface suggest rapid sea‐level rise in the gulf prior to ~14 cal ka BP, consistent with Meltwater Pulse 1A. Overall, this study highlights the significant impact of sea‐level rise on sedimentation in the gulf from the onset of marine incursions to the mid‐Holocene, as well as the reduced contribution, as currently observed, of riverine inputs due to the progressive diminution and withdrawal of glacial drainage starting before the Holocene. Fil: Desiage, Pierre Arnaud. Université du Québec a Montreal; Canadá Fil: St Onge, Guillaume. Université du Québec a Montreal; Canadá Fil: Duchesne, Mathieu J.. No especifíca; Fil: Montero Serrano, Jean Carlos. Université du Québec a Montreal; Canadá Fil: Haller, Miguel Jorge F.. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina |
description |
This study presents the first detailed description of the upper sedimentary succession of the latePleistocene and Holocene deposits in the Gulf of San Jorge (Patagonia) based on several hundred kilometers of highresolution seismic (sparker) profiles and numerous sediment cores. High‐resolution seismic stratigraphy confirms the existence of a paleo‐fluvial network formed during sea‐level lowstands and buried by central basin estuarine deposits during the last marine transgression. Analyses of lithostratigraphy and radiocarbon ages indicate the onset of subtidal sedimentation at ~14 cal ka BP. Before the onset of subtidal conditions, the first steps of marine incursion seem to have led to the development of lagoonal/wind–tidal flat environments, advocating for a sea‐level stillstand. An abrupt increase in the log(Ti/Ca) ratio in a distinct multi‐centimeter‐thick layer and the identification of a wave‐ravinement surface suggest rapid sea‐level rise in the gulf prior to ~14 cal ka BP, consistent with Meltwater Pulse 1A. Overall, this study highlights the significant impact of sea‐level rise on sedimentation in the gulf from the onset of marine incursions to the mid‐Holocene, as well as the reduced contribution, as currently observed, of riverine inputs due to the progressive diminution and withdrawal of glacial drainage starting before the Holocene. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-03 |
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/11336/233814 Desiage, Pierre Arnaud; St Onge, Guillaume; Duchesne, Mathieu J.; Montero Serrano, Jean Carlos; Haller, Miguel Jorge F.; Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina; John Wiley & Sons Ltd; Journal Of Quaternary Science; 38; 5; 3-2023; 629-646 0267-8179 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/233814 |
identifier_str_mv |
Desiage, Pierre Arnaud; St Onge, Guillaume; Duchesne, Mathieu J.; Montero Serrano, Jean Carlos; Haller, Miguel Jorge F.; Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina; John Wiley & Sons Ltd; Journal Of Quaternary Science; 38; 5; 3-2023; 629-646 0267-8179 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://onlinelibrary.wiley.com/doi/10.1002/jqs.3511 info:eu-repo/semantics/altIdentifier/doi/10.1002/jqs.3511 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
John Wiley & Sons Ltd |
publisher.none.fl_str_mv |
John Wiley & Sons 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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1844613405178068992 |
score |
13.070432 |