Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia

Autores
Márquez, Marcelo J.; Navarrete, César R.; Foix, Nicolás; Hervé, Francisco; Fanning, Mark
Año de publicación
2023
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Cabo Blanco outcrop, located in the northeastern Deseado Massif on the Atlantic coast of Patagonia, exposes metasedimentary rocks affected by contact metamorphism. The area presents three main lithofacies associations—breccias and conglomerates from debris flows, stratified sandstones deposited in shallow subaqueous settings, and mudstones from calmer environments—indicating sedimentation in a lake or marine system. U-Pb zircon dating from fine-grained sandstones yielded Early Jurassic ages (around 185 Ma), linking the outcrop to the initial magmatic stages of the Chon Aike silicic large igneous province. The zircons’ euhedral morphology suggests an igneous origin later reworked into a subaqueous depositional environment.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Cabo Blanco outcrop
Jurassic magmatism
Chon Aike Province
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/185643
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/185643
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, PatagoniaMárquez, Marcelo J.Navarrete, César R.Foix, NicolásHervé, FranciscoFanning, MarkCiencias NaturalesCabo Blanco outcropJurassic magmatismChon Aike ProvinceThe Cabo Blanco outcrop, located in the northeastern Deseado Massif on the Atlantic coast of Patagonia, exposes metasedimentary rocks affected by contact metamorphism. The area presents three main lithofacies associations—breccias and conglomerates from debris flows, stratified sandstones deposited in shallow subaqueous settings, and mudstones from calmer environments—indicating sedimentation in a lake or marine system. U-Pb zircon dating from fine-grained sandstones yielded Early Jurassic ages (around 185 Ma), linking the outcrop to the initial magmatic stages of the Chon Aike silicic large igneous province. The zircons’ euhedral morphology suggests an igneous origin later reworked into a subaqueous depositional environment.Facultad de Ciencias Naturales y Museo2023-08info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionResumenhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf59-60http://sedici.unlp.edu.ar/handle/10915/185643enginfo:eu-repo/semantics/reference/url/https://sedici.unlp.edu.ar/handle/10915/183721info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:42:23Zoai:sedici.unlp.edu.ar:10915/185643Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:42:24.034SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia
title Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia
spellingShingle Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia
Márquez, Marcelo J.
Ciencias Naturales
Cabo Blanco outcrop
Jurassic magmatism
Chon Aike Province
title_short Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia
title_full Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia
title_fullStr Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia
title_full_unstemmed Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia
title_sort Cabo Blanco: a Lower Jurassic outcrop in the northeastern Deseado Massif, Patagonia
dc.creator.none.fl_str_mv Márquez, Marcelo J.
Navarrete, César R.
Foix, Nicolás
Hervé, Francisco
Fanning, Mark
author Márquez, Marcelo J.
author_facet Márquez, Marcelo J.
Navarrete, César R.
Foix, Nicolás
Hervé, Francisco
Fanning, Mark
author_role author
author2 Navarrete, César R.
Foix, Nicolás
Hervé, Francisco
Fanning, Mark
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Cabo Blanco outcrop
Jurassic magmatism
Chon Aike Province
topic Ciencias Naturales
Cabo Blanco outcrop
Jurassic magmatism
Chon Aike Province
dc.description.none.fl_txt_mv The Cabo Blanco outcrop, located in the northeastern Deseado Massif on the Atlantic coast of Patagonia, exposes metasedimentary rocks affected by contact metamorphism. The area presents three main lithofacies associations—breccias and conglomerates from debris flows, stratified sandstones deposited in shallow subaqueous settings, and mudstones from calmer environments—indicating sedimentation in a lake or marine system. U-Pb zircon dating from fine-grained sandstones yielded Early Jurassic ages (around 185 Ma), linking the outcrop to the initial magmatic stages of the Chon Aike silicic large igneous province. The zircons’ euhedral morphology suggests an igneous origin later reworked into a subaqueous depositional environment.
Facultad de Ciencias Naturales y Museo
description The Cabo Blanco outcrop, located in the northeastern Deseado Massif on the Atlantic coast of Patagonia, exposes metasedimentary rocks affected by contact metamorphism. The area presents three main lithofacies associations—breccias and conglomerates from debris flows, stratified sandstones deposited in shallow subaqueous settings, and mudstones from calmer environments—indicating sedimentation in a lake or marine system. U-Pb zircon dating from fine-grained sandstones yielded Early Jurassic ages (around 185 Ma), linking the outcrop to the initial magmatic stages of the Chon Aike silicic large igneous province. The zircons’ euhedral morphology suggests an igneous origin later reworked into a subaqueous depositional environment.
publishDate 2023
dc.date.none.fl_str_mv 2023-08
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
Resumen
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/185643
url http://sedici.unlp.edu.ar/handle/10915/185643
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/reference/url/https://sedici.unlp.edu.ar/handle/10915/183721
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
59-60
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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