Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina

Autores
D'Elia, Leandro; Martí, Joan
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyse the volcanic stratigraphy of the Lower Jurassic synrift sequence of the Sañicó depocentre, which is a sub-basin of one of the most important hydrocarbon basins in South America, the Neuquén rift basin. The Sañicó depocentre comprises a complex multicyclic volcano-sedimentary succession. The oldest part of the succession preserves a volcano-sedimentary sequence interpreted as the record of a stratovolcano. The middle part of the succession is characterized by the emplacement of two thick ignimbrites that completely filled the depocentre. Finally, the uppermost part of the succession records subordinate volcanism characterized by andesitic lavas associated with epiclastic sediments. The Sañicó depocentre shows a complex subsidence history that involves an interplay between tectonics and volcanism. During the early and late synrift phases, subsidence was relatively slow and permitted the accumulation of thick sequences of volcanic and sedimentary deposits throughout a long period of time. During the middle synrift phase, subsidence was very rapid and allowed the accumulation of a thick ignimbrite sequence in a very short time interval. In this study, this middle episode is interpreted as corresponding to a caldera-like event in which rapid subsidence occurred along the same normal faults that controlled tectonic subsidence during the previous and subsequent episodes.
Fil: D'Elia, Leandro. 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
Fil: Martí, Joan. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias de la Tierra Jaume Almera; España
Materia
Caldera
Volcanism
Syn-Rift
Neuquén Basin
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/24127
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/24127
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, ArgentinaD'Elia, LeandroMartí, JoanCalderaVolcanismSyn-RiftNeuquén Basinhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1We analyse the volcanic stratigraphy of the Lower Jurassic synrift sequence of the Sañicó depocentre, which is a sub-basin of one of the most important hydrocarbon basins in South America, the Neuquén rift basin. The Sañicó depocentre comprises a complex multicyclic volcano-sedimentary succession. The oldest part of the succession preserves a volcano-sedimentary sequence interpreted as the record of a stratovolcano. The middle part of the succession is characterized by the emplacement of two thick ignimbrites that completely filled the depocentre. Finally, the uppermost part of the succession records subordinate volcanism characterized by andesitic lavas associated with epiclastic sediments. The Sañicó depocentre shows a complex subsidence history that involves an interplay between tectonics and volcanism. During the early and late synrift phases, subsidence was relatively slow and permitted the accumulation of thick sequences of volcanic and sedimentary deposits throughout a long period of time. During the middle synrift phase, subsidence was very rapid and allowed the accumulation of a thick ignimbrite sequence in a very short time interval. In this study, this middle episode is interpreted as corresponding to a caldera-like event in which rapid subsidence occurred along the same normal faults that controlled tectonic subsidence during the previous and subsequent episodes.Fil: D'Elia, Leandro. 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; ArgentinaFil: Martí, Joan. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias de la Tierra Jaume Almera; EspañaGeological Soc Publ House2013-05-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24127D'Elia, Leandro; Martí, Joan; Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina; Geological Soc Publ House; Journal Of The Geological Society; 170; 24-5-2013; 571-5840016-7649CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1144/jgs2012-116info:eu-repo/semantics/altIdentifier/url/http://jgs.lyellcollection.org/content/170/4/571info:eu-repo/semantics/altIdentifier/url/http://jgs.geoscienceworld.org/content/170/4/571info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:04Zoai:ri.conicet.gov.ar:11336/24127instacron: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 09:45:04.867CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina
title Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina
spellingShingle Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina
D'Elia, Leandro
Caldera
Volcanism
Syn-Rift
Neuquén Basin
title_short Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina
title_full Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina
title_fullStr Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina
title_full_unstemmed Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina
title_sort Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina
dc.creator.none.fl_str_mv D'Elia, Leandro
Martí, Joan
author D'Elia, Leandro
author_facet D'Elia, Leandro
Martí, Joan
author_role author
author2 Martí, Joan
author2_role author
dc.subject.none.fl_str_mv Caldera
Volcanism
Syn-Rift
Neuquén Basin
topic Caldera
Volcanism
Syn-Rift
Neuquén Basin
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We analyse the volcanic stratigraphy of the Lower Jurassic synrift sequence of the Sañicó depocentre, which is a sub-basin of one of the most important hydrocarbon basins in South America, the Neuquén rift basin. The Sañicó depocentre comprises a complex multicyclic volcano-sedimentary succession. The oldest part of the succession preserves a volcano-sedimentary sequence interpreted as the record of a stratovolcano. The middle part of the succession is characterized by the emplacement of two thick ignimbrites that completely filled the depocentre. Finally, the uppermost part of the succession records subordinate volcanism characterized by andesitic lavas associated with epiclastic sediments. The Sañicó depocentre shows a complex subsidence history that involves an interplay between tectonics and volcanism. During the early and late synrift phases, subsidence was relatively slow and permitted the accumulation of thick sequences of volcanic and sedimentary deposits throughout a long period of time. During the middle synrift phase, subsidence was very rapid and allowed the accumulation of a thick ignimbrite sequence in a very short time interval. In this study, this middle episode is interpreted as corresponding to a caldera-like event in which rapid subsidence occurred along the same normal faults that controlled tectonic subsidence during the previous and subsequent episodes.
Fil: D'Elia, Leandro. 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
Fil: Martí, Joan. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias de la Tierra Jaume Almera; España
description We analyse the volcanic stratigraphy of the Lower Jurassic synrift sequence of the Sañicó depocentre, which is a sub-basin of one of the most important hydrocarbon basins in South America, the Neuquén rift basin. The Sañicó depocentre comprises a complex multicyclic volcano-sedimentary succession. The oldest part of the succession preserves a volcano-sedimentary sequence interpreted as the record of a stratovolcano. The middle part of the succession is characterized by the emplacement of two thick ignimbrites that completely filled the depocentre. Finally, the uppermost part of the succession records subordinate volcanism characterized by andesitic lavas associated with epiclastic sediments. The Sañicó depocentre shows a complex subsidence history that involves an interplay between tectonics and volcanism. During the early and late synrift phases, subsidence was relatively slow and permitted the accumulation of thick sequences of volcanic and sedimentary deposits throughout a long period of time. During the middle synrift phase, subsidence was very rapid and allowed the accumulation of a thick ignimbrite sequence in a very short time interval. In this study, this middle episode is interpreted as corresponding to a caldera-like event in which rapid subsidence occurred along the same normal faults that controlled tectonic subsidence during the previous and subsequent episodes.
publishDate 2013
dc.date.none.fl_str_mv 2013-05-24
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/11336/24127
D'Elia, Leandro; Martí, Joan; Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina; Geological Soc Publ House; Journal Of The Geological Society; 170; 24-5-2013; 571-584
0016-7649
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24127
identifier_str_mv D'Elia, Leandro; Martí, Joan; Caldera events in a rift depocentre: an example from the Jurassic Neuquén basin, Argentina; Geological Soc Publ House; Journal Of The Geological Society; 170; 24-5-2013; 571-584
0016-7649
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1144/jgs2012-116
info:eu-repo/semantics/altIdentifier/url/http://jgs.lyellcollection.org/content/170/4/571
info:eu-repo/semantics/altIdentifier/url/http://jgs.geoscienceworld.org/content/170/4/571
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Geological Soc Publ House
publisher.none.fl_str_mv Geological Soc Publ House
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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