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dc.contributor.author
Desiage, Pierre Arnaud
dc.contributor.author
St Onge, Guillaume
dc.contributor.author
Duchesne, Mathieu J.
dc.contributor.author
Montero Serrano, Jean Carlos
dc.contributor.author
Haller, Miguel Jorge F.
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dc.date.available
2024-04-23T10:29:54Z
dc.date.issued
2023-03
dc.identifier.citation
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
dc.identifier.issn
0267-8179
dc.identifier.uri
http://hdl.handle.net/11336/233814
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Ltd
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ELEMENTAL GEOCHEMISTRY
dc.subject
INCISED VALLEYS
dc.subject
MWP-1A
dc.subject
PATAGONIA
dc.subject
POSTGLACIAL SEA-LEVEL CHANGES
dc.subject.classification
Oceanografía, Hidrología, Recursos Hídricos
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Late Pleistocene and Holocene transgression inferred from the sediments of the Gulf of San Jorge, central Patagonia, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-04-22T11:51:30Z
dc.journal.volume
38
dc.journal.number
5
dc.journal.pagination
629-646
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Desiage, Pierre Arnaud. Université du Québec a Montreal; Canadá
dc.description.fil
Fil: St Onge, Guillaume. Université du Québec a Montreal; Canadá
dc.description.fil
Fil: Duchesne, Mathieu J.. No especifíca;
dc.description.fil
Fil: Montero Serrano, Jean Carlos. Université du Québec a Montreal; Canadá
dc.description.fil
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
dc.journal.title
Journal Of Quaternary Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/jqs.3511
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/jqs.3511
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