La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis

Autores
Abre, Paulina; Cingolani, Carlos Alberto; Chemale Jr., Farid; Uriz, Norberto Javier; Cingolani, Carlos Alberto
Año de publicación
2017
Idioma
inglés
Tipo de recurso
parte de libro
Estado
versión publicada
Descripción
La Horqueta Formation is developed from the Seco de las Peñas River to Agua de la Piedra creek within the San Rafael block and was deposited in a marine environment. It comprises dominantly metasandstones, although metasiltstones, metapelites, and rare metaconglomerates are also present. The base of the succession is not exposed and it is superposed through unconformity by Upper Carboniferous units. La Horqueta Formation is folded and shows cleavage. Provenance analyses based on whole-rock geochemistry and isotope data is the main focus of the work. Whole-rock geochemical data point to a derivation from unrecycled upper continental crust, based mainly on Th/Sc, Zr/Sc, La/Th, and Th/U ratios and rare earth element (REE) patterns (including Eu anomalies). Sc, Cr, and V concentrations and low Th/Sc ratios are indicative of a source slightly less evolved than the average upper continental crust. The εNd values are within the range of variation of data from the Mesoproterozoic Cerro La Ventana Formation, which is part of the basement of the Cuyania terrane outcropping within the San Rafael block. The Rb-Sr whole-rock data indicate that the low-grade metamorphism and folding events are Devonian in age. U-Pb detrital zircon ages suggest main derivation from the Mesoproterozoic (“Grenvillian-age”) basement of the San Rafael block and the Pampean–Brasiliano cycle, as well as a detrital input from the Río de la Plata craton and the Famatinian belt. Despite geochemical similarities, Río Seco de los Castaños Formation display different proportions of detrital zircon ages, when compared to La Horqueta Formation.
Centro de Investigaciones Geológicas
Materia
Geología
Geochemistry
Isotope data
Provenance
La Horqueta Formation
San Rafael Block
Cuyania terrane
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:10915/152054
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/152054
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance AnalysisAbre, PaulinaCingolani, Carlos AlbertoChemale Jr., FaridUriz, Norberto JavierCingolani, Carlos AlbertoGeologíaGeochemistryIsotope dataProvenanceLa Horqueta FormationSan Rafael BlockCuyania terraneLa Horqueta Formation is developed from the Seco de las Peñas River to Agua de la Piedra creek within the San Rafael block and was deposited in a marine environment. It comprises dominantly metasandstones, although metasiltstones, metapelites, and rare metaconglomerates are also present. The base of the succession is not exposed and it is superposed through unconformity by Upper Carboniferous units. La Horqueta Formation is folded and shows cleavage. Provenance analyses based on whole-rock geochemistry and isotope data is the main focus of the work. Whole-rock geochemical data point to a derivation from unrecycled upper continental crust, based mainly on Th/Sc, Zr/Sc, La/Th, and Th/U ratios and rare earth element (REE) patterns (including Eu anomalies). Sc, Cr, and V concentrations and low Th/Sc ratios are indicative of a source slightly less evolved than the average upper continental crust. The εNd values are within the range of variation of data from the Mesoproterozoic Cerro La Ventana Formation, which is part of the basement of the Cuyania terrane outcropping within the San Rafael block. The Rb-Sr whole-rock data indicate that the low-grade metamorphism and folding events are Devonian in age. U-Pb detrital zircon ages suggest main derivation from the Mesoproterozoic (“Grenvillian-age”) basement of the San Rafael block and the Pampean–Brasiliano cycle, as well as a detrital input from the Río de la Plata craton and the Famatinian belt. Despite geochemical similarities, Río Seco de los Castaños Formation display different proportions of detrital zircon ages, when compared to La Horqueta Formation.Centro de Investigaciones GeológicasSpringer2017info:eu-repo/semantics/bookPartinfo:eu-repo/semantics/publishedVersionCapitulo de librohttp://purl.org/coar/resource_type/c_3248info:ar-repo/semantics/parteDeLibroapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/152054enginfo:eu-repo/semantics/altIdentifier/isbn/978-3-319-50153-6info:eu-repo/semantics/altIdentifier/issn/2197-9596info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-319-50153-6_9info: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:UNLP2025-09-10T12:41:49Zoai:sedici.unlp.edu.ar:10915/152054Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-10 12:41:49.574SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis
title La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis
spellingShingle La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis
Abre, Paulina
Geología
Geochemistry
Isotope data
Provenance
La Horqueta Formation
San Rafael Block
Cuyania terrane
title_short La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis
title_full La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis
title_fullStr La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis
title_full_unstemmed La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis
title_sort La Horqueta Formation: Geochemistry, Isotopic Data, and Provenance Analysis
dc.creator.none.fl_str_mv Abre, Paulina
Cingolani, Carlos Alberto
Chemale Jr., Farid
Uriz, Norberto Javier
Cingolani, Carlos Alberto
author Abre, Paulina
author_facet Abre, Paulina
Cingolani, Carlos Alberto
Chemale Jr., Farid
Uriz, Norberto Javier
author_role author
author2 Cingolani, Carlos Alberto
Chemale Jr., Farid
Uriz, Norberto Javier
author2_role author
author
author
dc.subject.none.fl_str_mv Geología
Geochemistry
Isotope data
Provenance
La Horqueta Formation
San Rafael Block
Cuyania terrane
topic Geología
Geochemistry
Isotope data
Provenance
La Horqueta Formation
San Rafael Block
Cuyania terrane
dc.description.none.fl_txt_mv La Horqueta Formation is developed from the Seco de las Peñas River to Agua de la Piedra creek within the San Rafael block and was deposited in a marine environment. It comprises dominantly metasandstones, although metasiltstones, metapelites, and rare metaconglomerates are also present. The base of the succession is not exposed and it is superposed through unconformity by Upper Carboniferous units. La Horqueta Formation is folded and shows cleavage. Provenance analyses based on whole-rock geochemistry and isotope data is the main focus of the work. Whole-rock geochemical data point to a derivation from unrecycled upper continental crust, based mainly on Th/Sc, Zr/Sc, La/Th, and Th/U ratios and rare earth element (REE) patterns (including Eu anomalies). Sc, Cr, and V concentrations and low Th/Sc ratios are indicative of a source slightly less evolved than the average upper continental crust. The εNd values are within the range of variation of data from the Mesoproterozoic Cerro La Ventana Formation, which is part of the basement of the Cuyania terrane outcropping within the San Rafael block. The Rb-Sr whole-rock data indicate that the low-grade metamorphism and folding events are Devonian in age. U-Pb detrital zircon ages suggest main derivation from the Mesoproterozoic (“Grenvillian-age”) basement of the San Rafael block and the Pampean–Brasiliano cycle, as well as a detrital input from the Río de la Plata craton and the Famatinian belt. Despite geochemical similarities, Río Seco de los Castaños Formation display different proportions of detrital zircon ages, when compared to La Horqueta Formation.
Centro de Investigaciones Geológicas
description La Horqueta Formation is developed from the Seco de las Peñas River to Agua de la Piedra creek within the San Rafael block and was deposited in a marine environment. It comprises dominantly metasandstones, although metasiltstones, metapelites, and rare metaconglomerates are also present. The base of the succession is not exposed and it is superposed through unconformity by Upper Carboniferous units. La Horqueta Formation is folded and shows cleavage. Provenance analyses based on whole-rock geochemistry and isotope data is the main focus of the work. Whole-rock geochemical data point to a derivation from unrecycled upper continental crust, based mainly on Th/Sc, Zr/Sc, La/Th, and Th/U ratios and rare earth element (REE) patterns (including Eu anomalies). Sc, Cr, and V concentrations and low Th/Sc ratios are indicative of a source slightly less evolved than the average upper continental crust. The εNd values are within the range of variation of data from the Mesoproterozoic Cerro La Ventana Formation, which is part of the basement of the Cuyania terrane outcropping within the San Rafael block. The Rb-Sr whole-rock data indicate that the low-grade metamorphism and folding events are Devonian in age. U-Pb detrital zircon ages suggest main derivation from the Mesoproterozoic (“Grenvillian-age”) basement of the San Rafael block and the Pampean–Brasiliano cycle, as well as a detrital input from the Río de la Plata craton and the Famatinian belt. Despite geochemical similarities, Río Seco de los Castaños Formation display different proportions of detrital zircon ages, when compared to La Horqueta Formation.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/bookPart
info:eu-repo/semantics/publishedVersion
Capitulo de libro
http://purl.org/coar/resource_type/c_3248
info:ar-repo/semantics/parteDeLibro
format bookPart
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/152054
url http://sedici.unlp.edu.ar/handle/10915/152054
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/isbn/978-3-319-50153-6
info:eu-repo/semantics/altIdentifier/issn/2197-9596
info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-319-50153-6_9
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
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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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score 12.885934

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