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dc.contributor.author
Stern, C. R.
dc.contributor.author
Pereda, I.
dc.contributor.author
Aguerre, Ana Margarita

dc.date.available
2023-03-01T11:17:04Z
dc.date.issued
2012-06
dc.identifier.citation
Stern, C. R.; Pereda, I.; Aguerre, Ana Margarita; Multiple primary and secondary sources for chemically similar obsidians from the area of portada covunco, west-central Neuquén, Argentina; Wiley Blackwell Publishing, Inc; Archaeometry; 54; 3; 6-2012; 442-453
dc.identifier.issn
0003-813X
dc.identifier.uri
http://hdl.handle.net/11336/189163
dc.description.abstract
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 340ppm, different from any other obsidians previously reported from Neuquén, which all have Ba>500ppm, 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 ≥ 300km to the north-east in La Pampa Province, ~430km to the south in Chubut Province, and >75km to the west across the Andean drainage divide in Chile.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc

dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARGENTINA
dc.subject
NEUQUÉN
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OBSIDIAN
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PATAGONIA
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Otras Ciencias Químicas

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Ciencias Químicas

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CIENCIAS NATURALES Y EXACTAS

dc.title
Multiple primary and secondary sources for chemically similar obsidians from the area of portada covunco, west-central Neuquén, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-02-27T17:41:53Z
dc.journal.volume
54
dc.journal.number
3
dc.journal.pagination
442-453
dc.journal.pais
Reino Unido

dc.journal.ciudad
Londres
dc.description.fil
Fil: Stern, C. R.. State University of Colorado at Boulder; Estados Unidos
dc.description.fil
Fil: Pereda, I.. No especifíca;
dc.description.fil
Fil: Aguerre, Ana Margarita. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Archaeometry

dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/j.1475-4754.2011.00642.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1475-4754.2011.00642.x
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