Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina

Autores
Stern, Charles R.; Pereda, Isabel; Aguerre, Ana Margarita
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Stern, Charles R. University of Colorado Boulder. Department of Geological Sciences; Estados Unidos.
Fil: Pereda, Isabel. Proyecto Llamuco, Zapala, Neuquén; Argentina.
Fil: Aguerre, Ana Margarita. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueología; Argentina.
In west-central Neuquén Province, Argentina, in the area around Estancia Llamuco, west of Zapala, south of Las Lajas and north-east of Lago Aluminé, there are multiple primary and secondary sources of obsidian. Primary sources occur within the south-east extension of the Plio-Quaternary volcanic chain that runs from Copahue volcano through Pino Hachado. Secondary sources include river-bed gravels within the valleys of Arroyo Cochicó Grande and Río Kilca as far south as where this river joins with Río Aluminé, and the Quaternary fluvial-glacial sediments cut by the valley of Río Covunco as far east as Portada Covunco. Visually variable obsidians from these two secondary sources include homogeneous black and grey-translucent types, porphyritic and banded types, and an abundant quantity of oxidized red and black obsidian. However, all these visually distinct obsidians have similar and unique chemistry, with Ba between 220 and 340 ppm, different from any other obsidians previously reported from Neuquén, which all have Ba > 500 ppm, as do obsidians from sources to the north in Mendoza and to the west in Chile. This chemical distinctive obsidian has been exploited and transported over a wide area, beginning prior to 4000 bp, and occurs in local archaeological sites, as well as sites ≥ 300 km to the north-east in La Pampa Province, ∼430 km to the south in Chubut Province, and >75 km to the west across the Andean drainage divide in Chile.
Fuente
Archaeometry;54(3)
Materia
Obsidiana
Patagonia
Neuquén
Argentina
Obsidiana
Patagonia
Neuquén
Argentina
Arqueología
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Repositorio
Filo Digital (UBA-FFyL)
Institución
Universidad de Buenos Aires. Facultad de Filosofía y Letras
OAI Identificador
oai:repositorio.filo.uba.ar:filodigital/12657

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repository_id_str 4445
network_name_str Filo Digital (UBA-FFyL)
spelling Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, ArgentinaStern, Charles R.Pereda, IsabelAguerre, Ana MargaritaObsidianaPatagoniaNeuquénArgentinaObsidianaPatagoniaNeuquénArgentinaArqueologíaFil: Stern, Charles R. University of Colorado Boulder. Department of Geological Sciences; Estados Unidos.Fil: Pereda, Isabel. Proyecto Llamuco, Zapala, Neuquén; Argentina.Fil: Aguerre, Ana Margarita. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueología; Argentina.In west-central Neuquén Province, Argentina, in the area around Estancia Llamuco, west of Zapala, south of Las Lajas and north-east of Lago Aluminé, there are multiple primary and secondary sources of obsidian. Primary sources occur within the south-east extension of the Plio-Quaternary volcanic chain that runs from Copahue volcano through Pino Hachado. Secondary sources include river-bed gravels within the valleys of Arroyo Cochicó Grande and Río Kilca as far south as where this river joins with Río Aluminé, and the Quaternary fluvial-glacial sediments cut by the valley of Río Covunco as far east as Portada Covunco. Visually variable obsidians from these two secondary sources include homogeneous black and grey-translucent types, porphyritic and banded types, and an abundant quantity of oxidized red and black obsidian. However, all these visually distinct obsidians have similar and unique chemistry, with Ba between 220 and 340 ppm, different from any other obsidians previously reported from Neuquén, which all have Ba > 500 ppm, as do obsidians from sources to the north in Mendoza and to the west in Chile. This chemical distinctive obsidian has been exploited and transported over a wide area, beginning prior to 4000 bp, and occurs in local archaeological sites, as well as sites ≥ 300 km to the north-east in La Pampa Province, ∼430 km to the south in Chubut Province, and >75 km to the west across the Andean drainage divide in Chile.2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf442-453doi:10.1111/j.1475-4754.2011.00642.xStern, C. R., Pereda, M. I., & Aguerre, A. M. (2012). Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina. Archaeometry, 54(3), 442-453. https://doi.org/10.1111/j.1475-4754.2011.00642.xissn:0003-813Xissn:1475-4754http://repositorio.filo.uba.ar/handle/filodigital/12657Archaeometry;54(3)reponame:Filo Digital (UBA-FFyL)instname:Universidad de Buenos Aires. Facultad de Filosofía y Letrasenginfo:eu-repo/semantics/openAccess2025-09-29T14:01:42Zoai:repositorio.filo.uba.ar:filodigital/12657instacron:UBA-FFyLInstitucionalhttp://repositorio.filo.uba.ar/xmlui/Universidad públicaNo correspondehttp://repositorio.filo.uba.ar/oai/requestsubsecbibliotecas@filo.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:44452025-09-29 14:01:43.265Filo Digital (UBA-FFyL) - Universidad de Buenos Aires. Facultad de Filosofía y Letrasfalse
dc.title.none.fl_str_mv Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina
title Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina
spellingShingle Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina
Stern, Charles R.
Obsidiana
Patagonia
Neuquén
Argentina
Obsidiana
Patagonia
Neuquén
Argentina
Arqueología
title_short Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina
title_full Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina
title_fullStr Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina
title_full_unstemmed Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina
title_sort Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina
dc.creator.none.fl_str_mv Stern, Charles R.
Pereda, Isabel
Aguerre, Ana Margarita
author Stern, Charles R.
author_facet Stern, Charles R.
Pereda, Isabel
Aguerre, Ana Margarita
author_role author
author2 Pereda, Isabel
Aguerre, Ana Margarita
author2_role author
author
dc.subject.none.fl_str_mv Obsidiana
Patagonia
Neuquén
Argentina
Obsidiana
Patagonia
Neuquén
Argentina
Arqueología
topic Obsidiana
Patagonia
Neuquén
Argentina
Obsidiana
Patagonia
Neuquén
Argentina
Arqueología
dc.description.none.fl_txt_mv Fil: Stern, Charles R. University of Colorado Boulder. Department of Geological Sciences; Estados Unidos.
Fil: Pereda, Isabel. Proyecto Llamuco, Zapala, Neuquén; Argentina.
Fil: Aguerre, Ana Margarita. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueología; Argentina.
In west-central Neuquén Province, Argentina, in the area around Estancia Llamuco, west of Zapala, south of Las Lajas and north-east of Lago Aluminé, there are multiple primary and secondary sources of obsidian. Primary sources occur within the south-east extension of the Plio-Quaternary volcanic chain that runs from Copahue volcano through Pino Hachado. Secondary sources include river-bed gravels within the valleys of Arroyo Cochicó Grande and Río Kilca as far south as where this river joins with Río Aluminé, and the Quaternary fluvial-glacial sediments cut by the valley of Río Covunco as far east as Portada Covunco. Visually variable obsidians from these two secondary sources include homogeneous black and grey-translucent types, porphyritic and banded types, and an abundant quantity of oxidized red and black obsidian. However, all these visually distinct obsidians have similar and unique chemistry, with Ba between 220 and 340 ppm, different from any other obsidians previously reported from Neuquén, which all have Ba > 500 ppm, as do obsidians from sources to the north in Mendoza and to the west in Chile. This chemical distinctive obsidian has been exploited and transported over a wide area, beginning prior to 4000 bp, and occurs in local archaeological sites, as well as sites ≥ 300 km to the north-east in La Pampa Province, ∼430 km to the south in Chubut Province, and >75 km to the west across the Andean drainage divide in Chile.
description Fil: Stern, Charles R. University of Colorado Boulder. Department of Geological Sciences; Estados Unidos.
publishDate 2012
dc.date.none.fl_str_mv 2012
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 doi:10.1111/j.1475-4754.2011.00642.x
Stern, C. R., Pereda, M. I., & Aguerre, A. M. (2012). Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina. Archaeometry, 54(3), 442-453. https://doi.org/10.1111/j.1475-4754.2011.00642.x
issn:0003-813X
issn:1475-4754
http://repositorio.filo.uba.ar/handle/filodigital/12657
identifier_str_mv doi:10.1111/j.1475-4754.2011.00642.x
Stern, C. R., Pereda, M. I., & Aguerre, A. M. (2012). Multiple primary and secondary sources for chemically similar obsidians from the área of Portada Covunco, West-Central, Neuquén, Argentina. Archaeometry, 54(3), 442-453. https://doi.org/10.1111/j.1475-4754.2011.00642.x
issn:0003-813X
issn:1475-4754
url http://repositorio.filo.uba.ar/handle/filodigital/12657
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
442-453
dc.source.none.fl_str_mv Archaeometry;54(3)
reponame:Filo Digital (UBA-FFyL)
instname:Universidad de Buenos Aires. Facultad de Filosofía y Letras
reponame_str Filo Digital (UBA-FFyL)
collection Filo Digital (UBA-FFyL)
instname_str Universidad de Buenos Aires. Facultad de Filosofía y Letras
repository.name.fl_str_mv Filo Digital (UBA-FFyL) - Universidad de Buenos Aires. Facultad de Filosofía y Letras
repository.mail.fl_str_mv subsecbibliotecas@filo.uba.ar
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