Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif

Autores
Benedini, Leonardo; Gregori, Daniel Alfredo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
By means of facial, stratigraphic, petrographic, geochemical and geochronological studies we characterize the Garamilla Formation, cropping out in the western Nordpatagonian Massif. The studies of these volcanic rocks reveal an Early Jurassic volcanic episode calc-alkaline series. Other geochemical features reveal a progressive change formed by three volcanic units that change from normal calc-alkaline to high-K 13 from an initial subduction-related volcanism to one intraplate-related volcanism. This volcanic episode is temporally and geochemically equivalent to those volcanic units located in half-grabens in several areas of the Neuquén Basin. The volcanic units were erupted in different structural designs. A portion of its depocenter was interpreted as a transtensional half-graben whereas the other exhibits a trapdoor structure. The lineament trends that bound the volcanic system were also recognised in Western Nordpatagonian Massif, and were assigned to the Gondwanide Orogenic.
Fil: Benedini, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Geológico del Sur; Argentina;
Fil: Gregori, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Geológico del Sur; Argentina;
Materia
VOLCANISM
EARLY JURASSIC
GARAMILLA FORMATION
WESTERN NORDPATAGONIAN MASSIF
ARGENTINA
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:11336/1002
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian MassifBenedini, LeonardoGregori, Daniel AlfredoVOLCANISMEARLY JURASSICGARAMILLA FORMATIONWESTERN NORDPATAGONIAN MASSIFARGENTINAhttps://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.5By means of facial, stratigraphic, petrographic, geochemical and geochronological studies we characterize the Garamilla Formation, cropping out in the western Nordpatagonian Massif. The studies of these volcanic rocks reveal an Early Jurassic volcanic episode calc-alkaline series. Other geochemical features reveal a progressive change formed by three volcanic units that change from normal calc-alkaline to high-K 13 from an initial subduction-related volcanism to one intraplate-related volcanism. This volcanic episode is temporally and geochemically equivalent to those volcanic units located in half-grabens in several areas of the Neuquén Basin. The volcanic units were erupted in different structural designs. A portion of its depocenter was interpreted as a transtensional half-graben whereas the other exhibits a trapdoor structure. The lineament trends that bound the volcanic system were also recognised in Western Nordpatagonian Massif, and were assigned to the Gondwanide Orogenic.Fil: Benedini, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Geológico del Sur; Argentina;Fil: Gregori, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Geológico del Sur; Argentina;Pergamon-elsevier Science Ltd2013-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1002Benedini, Leonardo; Gregori, Daniel Alfredo; Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif; Pergamon-elsevier Science Ltd; Journal Of South American Earth Sciences; 45; 3-2013; 259-2770895-9811enginfo:eu-repo/semantics/reference es info:eu-repo/semantics/reference/url/http://www.sciencedirect.com/science/article/pii/S0895981113000539#info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2013.03.016info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:46Zoai:ri.conicet.gov.ar:11336/1002instacron: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 09:44:46.724CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif
title Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif
spellingShingle Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif
Benedini, Leonardo
VOLCANISM
EARLY JURASSIC
GARAMILLA FORMATION
WESTERN NORDPATAGONIAN MASSIF
ARGENTINA
title_short Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif
title_full Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif
title_fullStr Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif
title_full_unstemmed Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif
title_sort Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif
dc.creator.none.fl_str_mv Benedini, Leonardo
Gregori, Daniel Alfredo
author Benedini, Leonardo
author_facet Benedini, Leonardo
Gregori, Daniel Alfredo
author_role author
author2 Gregori, Daniel Alfredo
author2_role author
dc.subject.none.fl_str_mv VOLCANISM
EARLY JURASSIC
GARAMILLA FORMATION
WESTERN NORDPATAGONIAN MASSIF
ARGENTINA
topic VOLCANISM
EARLY JURASSIC
GARAMILLA FORMATION
WESTERN NORDPATAGONIAN MASSIF
ARGENTINA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.5
dc.description.none.fl_txt_mv By means of facial, stratigraphic, petrographic, geochemical and geochronological studies we characterize the Garamilla Formation, cropping out in the western Nordpatagonian Massif. The studies of these volcanic rocks reveal an Early Jurassic volcanic episode calc-alkaline series. Other geochemical features reveal a progressive change formed by three volcanic units that change from normal calc-alkaline to high-K 13 from an initial subduction-related volcanism to one intraplate-related volcanism. This volcanic episode is temporally and geochemically equivalent to those volcanic units located in half-grabens in several areas of the Neuquén Basin. The volcanic units were erupted in different structural designs. A portion of its depocenter was interpreted as a transtensional half-graben whereas the other exhibits a trapdoor structure. The lineament trends that bound the volcanic system were also recognised in Western Nordpatagonian Massif, and were assigned to the Gondwanide Orogenic.
Fil: Benedini, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Geológico del Sur; Argentina;
Fil: Gregori, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Bahia Blanca. Instituto Geológico del Sur; Argentina;
description By means of facial, stratigraphic, petrographic, geochemical and geochronological studies we characterize the Garamilla Formation, cropping out in the western Nordpatagonian Massif. The studies of these volcanic rocks reveal an Early Jurassic volcanic episode calc-alkaline series. Other geochemical features reveal a progressive change formed by three volcanic units that change from normal calc-alkaline to high-K 13 from an initial subduction-related volcanism to one intraplate-related volcanism. This volcanic episode is temporally and geochemically equivalent to those volcanic units located in half-grabens in several areas of the Neuquén Basin. The volcanic units were erupted in different structural designs. A portion of its depocenter was interpreted as a transtensional half-graben whereas the other exhibits a trapdoor structure. The lineament trends that bound the volcanic system were also recognised in Western Nordpatagonian Massif, and were assigned to the Gondwanide Orogenic.
publishDate 2013
dc.date.none.fl_str_mv 2013-03
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/11336/1002
Benedini, Leonardo; Gregori, Daniel Alfredo; Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif; Pergamon-elsevier Science Ltd; Journal Of South American Earth Sciences; 45; 3-2013; 259-277
0895-9811
url http://hdl.handle.net/11336/1002
identifier_str_mv Benedini, Leonardo; Gregori, Daniel Alfredo; Significance of the early Jurassic Garamilla formation in the Western Nordpatagonian Massif; Pergamon-elsevier Science Ltd; Journal Of South American Earth Sciences; 45; 3-2013; 259-277
0895-9811
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/reference es info:eu-repo/semantics/reference/url/http://www.sciencedirect.com/science/article/pii/S0895981113000539#
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2013.03.016
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 Pergamon-elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-elsevier Science 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
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score 13.070432

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