Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)

Autores
Guisado Pintado, Emilia; Isla, Manuel Fermín
Año de publicación
2024
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Spits constitute sand-rich, elongated barriers extending laterally through the construction ofprogradational beach-ridges. Spits are constructed by angular wave approach and longshorecurrents, which results in the transport of sediment to the spit end and hence their growth. Ifsediment supply isn’t enough cannibalization can occur causing a narrowing and further breachingof the spit. One of the main controlling factors of sediment supply to spits are waves andparticularly high energy events such as storms.The spit of Punta Rasa, located in the northeast coast of the Buenos Aires province, represents thecoastal outer extreme of the Río de La Plata estuary. Towards the north the spit is bordered by thesouthern extreme of the Samborombón Bay, whereas, to the south, the spit extents along theOriental Barrier which ends towards the locality of Punta Medanos. The wave-built depositsinteract with marshes and tidal channels transgressing the shoreline from the north. Besides, thecoastal plain exhibits the interaction between beach-ridge systems, dune fields and sandybeaches.In this work, coastline changes and recent evolution of the system of spits in Punta Rasa areanalyzed using sedimentalogical profiles and aerial photographs. Results show an evolutionmarked by periods of erosion and significant changes in its morphology. Firther a general trend(since approx. 500 years) of the spit to curve towards the internal part of Bay is also found whichcould indicate a deficit in the contribution of sediment among with increasing mean sea level.
Fil: Guisado Pintado, Emilia. Facultad de Geografia E Historia ; Universidad de Sevilla;
Fil: Isla, Manuel Fermín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
EGU General Assembly 2024
Vienna
Austria
European Geosciences Union
Materia
BEACH SPIT
MORPHODYNAMICS
PUNTA RASA
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:11336/237700
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)Guisado Pintado, EmiliaIsla, Manuel FermínBEACH SPITMORPHODYNAMICSPUNTA RASAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Spits constitute sand-rich, elongated barriers extending laterally through the construction ofprogradational beach-ridges. Spits are constructed by angular wave approach and longshorecurrents, which results in the transport of sediment to the spit end and hence their growth. Ifsediment supply isn’t enough cannibalization can occur causing a narrowing and further breachingof the spit. One of the main controlling factors of sediment supply to spits are waves andparticularly high energy events such as storms.The spit of Punta Rasa, located in the northeast coast of the Buenos Aires province, represents thecoastal outer extreme of the Río de La Plata estuary. Towards the north the spit is bordered by thesouthern extreme of the Samborombón Bay, whereas, to the south, the spit extents along theOriental Barrier which ends towards the locality of Punta Medanos. The wave-built depositsinteract with marshes and tidal channels transgressing the shoreline from the north. Besides, thecoastal plain exhibits the interaction between beach-ridge systems, dune fields and sandybeaches.In this work, coastline changes and recent evolution of the system of spits in Punta Rasa areanalyzed using sedimentalogical profiles and aerial photographs. Results show an evolutionmarked by periods of erosion and significant changes in its morphology. Firther a general trend(since approx. 500 years) of the spit to curve towards the internal part of Bay is also found whichcould indicate a deficit in the contribution of sediment among with increasing mean sea level.Fil: Guisado Pintado, Emilia. Facultad de Geografia E Historia ; Universidad de Sevilla;Fil: Isla, Manuel Fermín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaEGU General Assembly 2024ViennaAustriaEuropean Geosciences UnionCopernicus Publications2024info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/237700Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina); EGU General Assembly 2024; Vienna; Austria; 2024; 1-1CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu24-19712info:eu-repo/semantics/altIdentifier/url/https://meetingorganizer.copernicus.org/EGU24/EGU24-19712.htmlInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:59:48Zoai:ri.conicet.gov.ar:11336/237700instacron: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 09:59:49.146CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)
title Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)
spellingShingle Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)
Guisado Pintado, Emilia
BEACH SPIT
MORPHODYNAMICS
PUNTA RASA
title_short Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)
title_full Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)
title_fullStr Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)
title_full_unstemmed Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)
title_sort Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina)
dc.creator.none.fl_str_mv Guisado Pintado, Emilia
Isla, Manuel Fermín
author Guisado Pintado, Emilia
author_facet Guisado Pintado, Emilia
Isla, Manuel Fermín
author_role author
author2 Isla, Manuel Fermín
author2_role author
dc.subject.none.fl_str_mv BEACH SPIT
MORPHODYNAMICS
PUNTA RASA
topic BEACH SPIT
MORPHODYNAMICS
PUNTA RASA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Spits constitute sand-rich, elongated barriers extending laterally through the construction ofprogradational beach-ridges. Spits are constructed by angular wave approach and longshorecurrents, which results in the transport of sediment to the spit end and hence their growth. Ifsediment supply isn’t enough cannibalization can occur causing a narrowing and further breachingof the spit. One of the main controlling factors of sediment supply to spits are waves andparticularly high energy events such as storms.The spit of Punta Rasa, located in the northeast coast of the Buenos Aires province, represents thecoastal outer extreme of the Río de La Plata estuary. Towards the north the spit is bordered by thesouthern extreme of the Samborombón Bay, whereas, to the south, the spit extents along theOriental Barrier which ends towards the locality of Punta Medanos. The wave-built depositsinteract with marshes and tidal channels transgressing the shoreline from the north. Besides, thecoastal plain exhibits the interaction between beach-ridge systems, dune fields and sandybeaches.In this work, coastline changes and recent evolution of the system of spits in Punta Rasa areanalyzed using sedimentalogical profiles and aerial photographs. Results show an evolutionmarked by periods of erosion and significant changes in its morphology. Firther a general trend(since approx. 500 years) of the spit to curve towards the internal part of Bay is also found whichcould indicate a deficit in the contribution of sediment among with increasing mean sea level.
Fil: Guisado Pintado, Emilia. Facultad de Geografia E Historia ; Universidad de Sevilla;
Fil: Isla, Manuel Fermín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
EGU General Assembly 2024
Vienna
Austria
European Geosciences Union
description Spits constitute sand-rich, elongated barriers extending laterally through the construction ofprogradational beach-ridges. Spits are constructed by angular wave approach and longshorecurrents, which results in the transport of sediment to the spit end and hence their growth. Ifsediment supply isn’t enough cannibalization can occur causing a narrowing and further breachingof the spit. One of the main controlling factors of sediment supply to spits are waves andparticularly high energy events such as storms.The spit of Punta Rasa, located in the northeast coast of the Buenos Aires province, represents thecoastal outer extreme of the Río de La Plata estuary. Towards the north the spit is bordered by thesouthern extreme of the Samborombón Bay, whereas, to the south, the spit extents along theOriental Barrier which ends towards the locality of Punta Medanos. The wave-built depositsinteract with marshes and tidal channels transgressing the shoreline from the north. Besides, thecoastal plain exhibits the interaction between beach-ridge systems, dune fields and sandybeaches.In this work, coastline changes and recent evolution of the system of spits in Punta Rasa areanalyzed using sedimentalogical profiles and aerial photographs. Results show an evolutionmarked by periods of erosion and significant changes in its morphology. Firther a general trend(since approx. 500 years) of the spit to curve towards the internal part of Bay is also found whichcould indicate a deficit in the contribution of sediment among with increasing mean sea level.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/237700
Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina); EGU General Assembly 2024; Vienna; Austria; 2024; 1-1
CONICET Digital
CONICET
url http://hdl.handle.net/11336/237700
identifier_str_mv Morphosedimentary evolution of a beach spit system (Punta Rasa, Argentina); EGU General Assembly 2024; Vienna; Austria; 2024; 1-1
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu24-19712
info:eu-repo/semantics/altIdentifier/url/https://meetingorganizer.copernicus.org/EGU24/EGU24-19712.html
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.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
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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