A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian...

Autores: González, Santiago Nicolás; Greco, Gerson Alan; Galetto, Antonella; Bordes, Sofia; Stipp Basei, Miguel Angel; Parada, Martín Nazareno; Giacosa, Raúl Eduardo; Pons, María Josefina
Año de publicación: 2022
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: Fil: González, Santiago. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Greco, Gerson. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Galetto, Antonella. CONICET-IDEAN, Universidad de Buenos Aires. Argentina.
Fil: Bordes, Sofia. La.Te. Andes SA (GEOMAP-CONICET). Salta, Argentina.
Fil: Basei, Miguel. Centro de Pesquisas em Geocronologia e Geoquímica Isotopica (CPGeo) - Universidad de San Pablo. Brasil.
Fil: Parada, Martín. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Giacosa, Raúl. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
In the eastern North Patagonian Massif, the Marifil Volcanic Complex corresponds to an Early Jurassic magmatic event. In this study, we evaluate new geochronological and thermochronological data obtained from an ignimbrite of the complex. U–Pb zircon ages from the pumice fraction reveal a Concordia age of 184.4 ± 1.1 Ma. Conversely, U–Pb zircon ages from the whole-rock sample evidence a Concordia age of 190.4 ± 0.6 Ma. Fission track techniques were applied on the same whole-rock sample. Zircon fission track performed on the same zircon-crystals dated by U–Pb yielded an age of 172.5 ± 8.1 Ma, while apatite fission track evidenced a cooling age of 179.1 ± 13.5 Ma. Apatite and zircon crystals describe uniform morphologies with unaltered euhedral to subhedral grains and well-developed crystalline forms. The results suggest that the age of eruption and deposition of the ignimbrite is better explained by the pumice zircon age rather than the whole-rock zircon age. Inherited grain-ages and petrographic evidence support provenance from older, probably cogenetic, magmatic products. Fission track ages reflect a post-depositional process probably related to diagenetic mineral changes.
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Materia: Ciencias Exactas y Naturales
Jurassic
Patagonia
Volcanism
Chon Aike
U–Pb
Fission-track
Apatite
Zircon
Low-temperature Thermochronology
Ciencias Exactas y Naturales
Nivel de accesibilidad: acceso abierto
Condiciones de uso: https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Institución: Universidad Nacional de Río Negro
OAI Identificador: oai:rid.unrn.edu.ar:20.500.12049/8446

Acceder

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network_acronym_str	RIDUNRN
repository_id_str	4369
network_name_str	RID-UNRN (UNRN)
spelling	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian MassifGonzález, Santiago NicolásGreco, Gerson AlanGaletto, AntonellaBordes, SofiaStipp Basei, Miguel AngelParada, Martín NazarenoGiacosa, Raúl EduardoPons, María JosefinaCiencias Exactas y NaturalesJurassicPatagoniaVolcanismChon AikeU–PbFission-trackApatiteZirconLow-temperature ThermochronologyCiencias Exactas y NaturalesFil: González, Santiago. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Greco, Gerson. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Galetto, Antonella. CONICET-IDEAN, Universidad de Buenos Aires. Argentina.Fil: Bordes, Sofia. La.Te. Andes SA (GEOMAP-CONICET). Salta, Argentina.Fil: Basei, Miguel. Centro de Pesquisas em Geocronologia e Geoquímica Isotopica (CPGeo) - Universidad de San Pablo. Brasil.Fil: Parada, Martín. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Giacosa, Raúl. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.In the eastern North Patagonian Massif, the Marifil Volcanic Complex corresponds to an Early Jurassic magmatic event. In this study, we evaluate new geochronological and thermochronological data obtained from an ignimbrite of the complex. U–Pb zircon ages from the pumice fraction reveal a Concordia age of 184.4 ± 1.1 Ma. Conversely, U–Pb zircon ages from the whole-rock sample evidence a Concordia age of 190.4 ± 0.6 Ma. Fission track techniques were applied on the same whole-rock sample. Zircon fission track performed on the same zircon-crystals dated by U–Pb yielded an age of 172.5 ± 8.1 Ma, while apatite fission track evidenced a cooling age of 179.1 ± 13.5 Ma. Apatite and zircon crystals describe uniform morphologies with unaltered euhedral to subhedral grains and well-developed crystalline forms. The results suggest that the age of eruption and deposition of the ignimbrite is better explained by the pumice zircon age rather than the whole-rock zircon age. Inherited grain-ages and petrographic evidence support provenance from older, probably cogenetic, magmatic products. Fission track ages reflect a post-depositional process probably related to diagenetic mineral changes.-El Sevier2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfGonzález, S. N., Greco, G. A., Galetto, A., Bordes, S., Basei, M. A., Parada, M. N., Giacosa, R. E. & Pons, M. J. (2022). A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif. Journal of South American Earth Sciences; 114; 103688.0895-9811https://www.sciencedirect.com/science/article/pii/S0895981121005332?via%3Dihubhttp://rid.unrn.edu.ar/handle/20.500.12049/8446https://doi.org/10.1016/j.jsames.2021.103688enghttps://www.sciencedirect.com/journal/journal-of-south-american-earth-sciences114Journal of South American Earth Sciencesinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-10-23T11:17:03Zoai:rid.unrn.edu.ar:20.500.12049/8446instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-10-23 11:17:03.797RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif
title	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif
spellingShingle	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif González, Santiago Nicolás Ciencias Exactas y Naturales Jurassic Patagonia Volcanism Chon Aike U–Pb Fission-track Apatite Zircon Low-temperature Thermochronology Ciencias Exactas y Naturales
title_short	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif
title_full	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif
title_fullStr	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif
title_full_unstemmed	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif
title_sort	A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif
dc.creator.none.fl_str_mv	González, Santiago Nicolás Greco, Gerson Alan Galetto, Antonella Bordes, Sofia Stipp Basei, Miguel Angel Parada, Martín Nazareno Giacosa, Raúl Eduardo Pons, María Josefina
author	González, Santiago Nicolás
author_facet	González, Santiago Nicolás Greco, Gerson Alan Galetto, Antonella Bordes, Sofia Stipp Basei, Miguel Angel Parada, Martín Nazareno Giacosa, Raúl Eduardo Pons, María Josefina
author_role	author
author2	Greco, Gerson Alan Galetto, Antonella Bordes, Sofia Stipp Basei, Miguel Angel Parada, Martín Nazareno Giacosa, Raúl Eduardo Pons, María Josefina
author2_role	author author author author author author author
dc.subject.none.fl_str_mv	Ciencias Exactas y Naturales Jurassic Patagonia Volcanism Chon Aike U–Pb Fission-track Apatite Zircon Low-temperature Thermochronology Ciencias Exactas y Naturales
topic	Ciencias Exactas y Naturales Jurassic Patagonia Volcanism Chon Aike U–Pb Fission-track Apatite Zircon Low-temperature Thermochronology Ciencias Exactas y Naturales
dc.description.none.fl_txt_mv	Fil: González, Santiago. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Greco, Gerson. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Galetto, Antonella. CONICET-IDEAN, Universidad de Buenos Aires. Argentina. Fil: Bordes, Sofia. La.Te. Andes SA (GEOMAP-CONICET). Salta, Argentina. Fil: Basei, Miguel. Centro de Pesquisas em Geocronologia e Geoquímica Isotopica (CPGeo) - Universidad de San Pablo. Brasil. Fil: Parada, Martín. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Giacosa, Raúl. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. In the eastern North Patagonian Massif, the Marifil Volcanic Complex corresponds to an Early Jurassic magmatic event. In this study, we evaluate new geochronological and thermochronological data obtained from an ignimbrite of the complex. U–Pb zircon ages from the pumice fraction reveal a Concordia age of 184.4 ± 1.1 Ma. Conversely, U–Pb zircon ages from the whole-rock sample evidence a Concordia age of 190.4 ± 0.6 Ma. Fission track techniques were applied on the same whole-rock sample. Zircon fission track performed on the same zircon-crystals dated by U–Pb yielded an age of 172.5 ± 8.1 Ma, while apatite fission track evidenced a cooling age of 179.1 ± 13.5 Ma. Apatite and zircon crystals describe uniform morphologies with unaltered euhedral to subhedral grains and well-developed crystalline forms. The results suggest that the age of eruption and deposition of the ignimbrite is better explained by the pumice zircon age rather than the whole-rock zircon age. Inherited grain-ages and petrographic evidence support provenance from older, probably cogenetic, magmatic products. Fission track ages reflect a post-depositional process probably related to diagenetic mineral changes. -
description	Fil: González, Santiago. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
publishDate	2022
dc.date.none.fl_str_mv	2022
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	González, S. N., Greco, G. A., Galetto, A., Bordes, S., Basei, M. A., Parada, M. N., Giacosa, R. E. & Pons, M. J. (2022). A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif. Journal of South American Earth Sciences; 114; 103688. 0895-9811 https://www.sciencedirect.com/science/article/pii/S0895981121005332?via%3Dihub http://rid.unrn.edu.ar/handle/20.500.12049/8446 https://doi.org/10.1016/j.jsames.2021.103688
identifier_str_mv	González, S. N., Greco, G. A., Galetto, A., Bordes, S., Basei, M. A., Parada, M. N., Giacosa, R. E. & Pons, M. J. (2022). A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian Massif. Journal of South American Earth Sciences; 114; 103688. 0895-9811
url	https://www.sciencedirect.com/science/article/pii/S0895981121005332?via%3Dihub http://rid.unrn.edu.ar/handle/20.500.12049/8446 https://doi.org/10.1016/j.jsames.2021.103688
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	https://www.sciencedirect.com/journal/journal-of-south-american-earth-sciences 114 Journal of South American Earth Sciences
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv	openAccess
rights_invalid_str_mv	https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	El Sevier
publisher.none.fl_str_mv	El Sevier
dc.source.none.fl_str_mv	reponame:RID-UNRN (UNRN) instname:Universidad Nacional de Río Negro
reponame_str	RID-UNRN (UNRN)
collection	RID-UNRN (UNRN)
instname_str	Universidad Nacional de Río Negro
repository.name.fl_str_mv	RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv	rid@unrn.edu.ar
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A multi-method approach to constrain the age of eruption and post-depositional processes in a Lower Jurassic ignimbrite from the Marifil Volcanic Complex, eastern North Patagonian...

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