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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/233814
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/233814
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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 Técnicas2025-10-22T11:13:28Zoai: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:34982025-10-22 11:13:28.548CONICET 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
_version_ 1846781542913802240
score 12.982451

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