Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)

Autores
Cavallotto, José Luis; Bonomo, Nestor Eduardo; Grünhut Duenyas, Vivian; Zabala Medina, Peter; Violante, Roberto Antonio; Onnis, Luciano Emanuel; Osella, Ana Maria
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New information about the distribution, geometry, structure, extension and facies variations of the uppermost stratigraphic sequences (particularly the Holocene) of the southern coastal plain of the Río de la Plata was obtained by using geophysical methods. This is the first study performed in the region to investigate the shallow stratigraphic characteristics through continuous geophysical surveys. Methods used were georadar (GPR), electrical resistivity tomography (ERT) and seismic surface waves (SSW), complemented with short drillings. Two transects perpendicular to the coastline were selected on the basis of the previous geological knowledge of the region and accessibility. GPR was used in order to obtain a dense sampling of the near subsoil, whereas ERT and SSW were used in parts of the transects for resolving ambiguous trajectories of the detected GPR horizons. The geophysical results were jointly interpreted, and validated and complemented by the information from the drillings. Two major geophysical horizons were identified; the lower one is located between 5 and 2 m below surface and progressively shallows inland, which represents the late Pleistocene-Holocene boundary; the upper one, located at variable depths of 2 m–0.70 m below surface, represents the base of the Holocene beach ridges system in the region. They delimit three units, the lower one corresponding to the top of the Pampean deposits, the middle one representing the basal Holocene sandy layer, and the upper one corresponding to the beach ridges systems and related inter-ridge, tidal deposits. In this way, the applied methodology allowed to determine the extension of the Holocene sedimentary sequences, the relation between the Holocene sequences and its substratum, and the spatial distribution and geometrical characteristics of partially buried beach ridges and associated inter-ridges deposits. The applied methodology and the obtained geophysical-response patterns can be useful for future investigations of other regions with similar ground characteristics.
Fil: Cavallotto, José Luis. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
Fil: Bonomo, Nestor Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Grünhut Duenyas, Vivian. Universidad Austral. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Zabala Medina, Peter. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Violante, Roberto Antonio. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
Fil: Onnis, Luciano Emanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Osella, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Materia
BEACH RIDGES
GEOELECTRICAL METHOD
GPR
RÍO DE LA PLATA COASTAL PLAIN
SEISMIC SURFACE WAVE METHOD
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:11336/142491
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)Cavallotto, José LuisBonomo, Nestor EduardoGrünhut Duenyas, VivianZabala Medina, PeterViolante, Roberto AntonioOnnis, Luciano EmanuelOsella, Ana MariaBEACH RIDGESGEOELECTRICAL METHODGPRRÍO DE LA PLATA COASTAL PLAINSEISMIC SURFACE WAVE METHODhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1New information about the distribution, geometry, structure, extension and facies variations of the uppermost stratigraphic sequences (particularly the Holocene) of the southern coastal plain of the Río de la Plata was obtained by using geophysical methods. This is the first study performed in the region to investigate the shallow stratigraphic characteristics through continuous geophysical surveys. Methods used were georadar (GPR), electrical resistivity tomography (ERT) and seismic surface waves (SSW), complemented with short drillings. Two transects perpendicular to the coastline were selected on the basis of the previous geological knowledge of the region and accessibility. GPR was used in order to obtain a dense sampling of the near subsoil, whereas ERT and SSW were used in parts of the transects for resolving ambiguous trajectories of the detected GPR horizons. The geophysical results were jointly interpreted, and validated and complemented by the information from the drillings. Two major geophysical horizons were identified; the lower one is located between 5 and 2 m below surface and progressively shallows inland, which represents the late Pleistocene-Holocene boundary; the upper one, located at variable depths of 2 m–0.70 m below surface, represents the base of the Holocene beach ridges system in the region. They delimit three units, the lower one corresponding to the top of the Pampean deposits, the middle one representing the basal Holocene sandy layer, and the upper one corresponding to the beach ridges systems and related inter-ridge, tidal deposits. In this way, the applied methodology allowed to determine the extension of the Holocene sedimentary sequences, the relation between the Holocene sequences and its substratum, and the spatial distribution and geometrical characteristics of partially buried beach ridges and associated inter-ridges deposits. The applied methodology and the obtained geophysical-response patterns can be useful for future investigations of other regions with similar ground characteristics.Fil: Cavallotto, José Luis. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; ArgentinaFil: Bonomo, Nestor Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Grünhut Duenyas, Vivian. Universidad Austral. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Zabala Medina, Peter. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Violante, Roberto Antonio. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; ArgentinaFil: Onnis, Luciano Emanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Osella, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaPergamon-Elsevier Science Ltd2020-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/142491Cavallotto, José Luis; Bonomo, Nestor Eduardo; Grünhut Duenyas, Vivian; Zabala Medina, Peter; Violante, Roberto Antonio; et al.; Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina); Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 102; 10-2020; 1-320895-98111873-0647CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981120302054info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.102662info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:43Zoai:ri.conicet.gov.ar:11336/142491instacron: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 09:41:44.027CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)
title Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)
spellingShingle Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)
Cavallotto, José Luis
BEACH RIDGES
GEOELECTRICAL METHOD
GPR
RÍO DE LA PLATA COASTAL PLAIN
SEISMIC SURFACE WAVE METHOD
title_short Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)
title_full Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)
title_fullStr Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)
title_full_unstemmed Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)
title_sort Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina)
dc.creator.none.fl_str_mv Cavallotto, José Luis
Bonomo, Nestor Eduardo
Grünhut Duenyas, Vivian
Zabala Medina, Peter
Violante, Roberto Antonio
Onnis, Luciano Emanuel
Osella, Ana Maria
author Cavallotto, José Luis
author_facet Cavallotto, José Luis
Bonomo, Nestor Eduardo
Grünhut Duenyas, Vivian
Zabala Medina, Peter
Violante, Roberto Antonio
Onnis, Luciano Emanuel
Osella, Ana Maria
author_role author
author2 Bonomo, Nestor Eduardo
Grünhut Duenyas, Vivian
Zabala Medina, Peter
Violante, Roberto Antonio
Onnis, Luciano Emanuel
Osella, Ana Maria
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv BEACH RIDGES
GEOELECTRICAL METHOD
GPR
RÍO DE LA PLATA COASTAL PLAIN
SEISMIC SURFACE WAVE METHOD
topic BEACH RIDGES
GEOELECTRICAL METHOD
GPR
RÍO DE LA PLATA COASTAL PLAIN
SEISMIC SURFACE WAVE METHOD
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv New information about the distribution, geometry, structure, extension and facies variations of the uppermost stratigraphic sequences (particularly the Holocene) of the southern coastal plain of the Río de la Plata was obtained by using geophysical methods. This is the first study performed in the region to investigate the shallow stratigraphic characteristics through continuous geophysical surveys. Methods used were georadar (GPR), electrical resistivity tomography (ERT) and seismic surface waves (SSW), complemented with short drillings. Two transects perpendicular to the coastline were selected on the basis of the previous geological knowledge of the region and accessibility. GPR was used in order to obtain a dense sampling of the near subsoil, whereas ERT and SSW were used in parts of the transects for resolving ambiguous trajectories of the detected GPR horizons. The geophysical results were jointly interpreted, and validated and complemented by the information from the drillings. Two major geophysical horizons were identified; the lower one is located between 5 and 2 m below surface and progressively shallows inland, which represents the late Pleistocene-Holocene boundary; the upper one, located at variable depths of 2 m–0.70 m below surface, represents the base of the Holocene beach ridges system in the region. They delimit three units, the lower one corresponding to the top of the Pampean deposits, the middle one representing the basal Holocene sandy layer, and the upper one corresponding to the beach ridges systems and related inter-ridge, tidal deposits. In this way, the applied methodology allowed to determine the extension of the Holocene sedimentary sequences, the relation between the Holocene sequences and its substratum, and the spatial distribution and geometrical characteristics of partially buried beach ridges and associated inter-ridges deposits. The applied methodology and the obtained geophysical-response patterns can be useful for future investigations of other regions with similar ground characteristics.
Fil: Cavallotto, José Luis. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
Fil: Bonomo, Nestor Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Grünhut Duenyas, Vivian. Universidad Austral. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Zabala Medina, Peter. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Violante, Roberto Antonio. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
Fil: Onnis, Luciano Emanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Osella, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
description New information about the distribution, geometry, structure, extension and facies variations of the uppermost stratigraphic sequences (particularly the Holocene) of the southern coastal plain of the Río de la Plata was obtained by using geophysical methods. This is the first study performed in the region to investigate the shallow stratigraphic characteristics through continuous geophysical surveys. Methods used were georadar (GPR), electrical resistivity tomography (ERT) and seismic surface waves (SSW), complemented with short drillings. Two transects perpendicular to the coastline were selected on the basis of the previous geological knowledge of the region and accessibility. GPR was used in order to obtain a dense sampling of the near subsoil, whereas ERT and SSW were used in parts of the transects for resolving ambiguous trajectories of the detected GPR horizons. The geophysical results were jointly interpreted, and validated and complemented by the information from the drillings. Two major geophysical horizons were identified; the lower one is located between 5 and 2 m below surface and progressively shallows inland, which represents the late Pleistocene-Holocene boundary; the upper one, located at variable depths of 2 m–0.70 m below surface, represents the base of the Holocene beach ridges system in the region. They delimit three units, the lower one corresponding to the top of the Pampean deposits, the middle one representing the basal Holocene sandy layer, and the upper one corresponding to the beach ridges systems and related inter-ridge, tidal deposits. In this way, the applied methodology allowed to determine the extension of the Holocene sedimentary sequences, the relation between the Holocene sequences and its substratum, and the spatial distribution and geometrical characteristics of partially buried beach ridges and associated inter-ridges deposits. The applied methodology and the obtained geophysical-response patterns can be useful for future investigations of other regions with similar ground characteristics.
publishDate 2020
dc.date.none.fl_str_mv 2020-10
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/11336/142491
Cavallotto, José Luis; Bonomo, Nestor Eduardo; Grünhut Duenyas, Vivian; Zabala Medina, Peter; Violante, Roberto Antonio; et al.; Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina); Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 102; 10-2020; 1-32
0895-9811
1873-0647
CONICET Digital
CONICET
url http://hdl.handle.net/11336/142491
identifier_str_mv Cavallotto, José Luis; Bonomo, Nestor Eduardo; Grünhut Duenyas, Vivian; Zabala Medina, Peter; Violante, Roberto Antonio; et al.; Shallow geophysical methods for recognition of holocene sedimentary sequences in the southern coastal plain of the Río de la Plata (Argentina); Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 102; 10-2020; 1-32
0895-9811
1873-0647
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://www.sciencedirect.com/science/article/pii/S0895981120302054
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.102662
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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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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