Determining the provenance of obsidian in southern Patagonia using optical properties

Autores
Fernández, María Victoria; Leal, Pablo Rodrigo
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper aims to evaluate the optical properties of natural rhyolite obsidians that might be useful in the identification of different sources of archaeological samples. Even though colour, degree of alteration, crystaloclast composition and texture are important properties by which sources can be identified, all of these features do not always lead to an unambiguous distinction. In this regard, the refractive index (ND) becomes a helpful tool because it is not only sensitive to the chemical composition of natural glasses but also to their different thermal histories. Obsidians from six localities of Patagonia were analysed. Their refractive index measurements (ND) only range between 1.47 and 1.49, but the ND values of some of these sources are sufficiently constrained to allow discrimination between them.
Fil: Fernández, María Victoria. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Leal, Pablo Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Materia
Obsidian
Refractive Indices
Optical Properties
Patagonia
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/18534
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Determining the provenance of obsidian in southern Patagonia using optical propertiesFernández, María VictoriaLeal, Pablo RodrigoObsidianRefractive IndicesOptical PropertiesPatagoniahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This paper aims to evaluate the optical properties of natural rhyolite obsidians that might be useful in the identification of different sources of archaeological samples. Even though colour, degree of alteration, crystaloclast composition and texture are important properties by which sources can be identified, all of these features do not always lead to an unambiguous distinction. In this regard, the refractive index (ND) becomes a helpful tool because it is not only sensitive to the chemical composition of natural glasses but also to their different thermal histories. Obsidians from six localities of Patagonia were analysed. Their refractive index measurements (ND) only range between 1.47 and 1.49, but the ND values of some of these sources are sufficiently constrained to allow discrimination between them.Fil: Fernández, María Victoria. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Leal, Pablo Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaWiley2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18534Fernández, María Victoria; Leal, Pablo Rodrigo; Determining the provenance of obsidian in southern Patagonia using optical properties; Wiley; Archaeometry; 56; S1; 7-2014; 1-180003-813XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/arcm.12059info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/arcm.12059/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:21:45Zoai:ri.conicet.gov.ar:11336/18534instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:21:45.428CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Determining the provenance of obsidian in southern Patagonia using optical properties
title Determining the provenance of obsidian in southern Patagonia using optical properties
spellingShingle Determining the provenance of obsidian in southern Patagonia using optical properties
Fernández, María Victoria
Obsidian
Refractive Indices
Optical Properties
Patagonia
title_short Determining the provenance of obsidian in southern Patagonia using optical properties
title_full Determining the provenance of obsidian in southern Patagonia using optical properties
title_fullStr Determining the provenance of obsidian in southern Patagonia using optical properties
title_full_unstemmed Determining the provenance of obsidian in southern Patagonia using optical properties
title_sort Determining the provenance of obsidian in southern Patagonia using optical properties
dc.creator.none.fl_str_mv Fernández, María Victoria
Leal, Pablo Rodrigo
author Fernández, María Victoria
author_facet Fernández, María Victoria
Leal, Pablo Rodrigo
author_role author
author2 Leal, Pablo Rodrigo
author2_role author
dc.subject.none.fl_str_mv Obsidian
Refractive Indices
Optical Properties
Patagonia
topic Obsidian
Refractive Indices
Optical Properties
Patagonia
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This paper aims to evaluate the optical properties of natural rhyolite obsidians that might be useful in the identification of different sources of archaeological samples. Even though colour, degree of alteration, crystaloclast composition and texture are important properties by which sources can be identified, all of these features do not always lead to an unambiguous distinction. In this regard, the refractive index (ND) becomes a helpful tool because it is not only sensitive to the chemical composition of natural glasses but also to their different thermal histories. Obsidians from six localities of Patagonia were analysed. Their refractive index measurements (ND) only range between 1.47 and 1.49, but the ND values of some of these sources are sufficiently constrained to allow discrimination between them.
Fil: Fernández, María Victoria. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Leal, Pablo Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires; Argentina
description This paper aims to evaluate the optical properties of natural rhyolite obsidians that might be useful in the identification of different sources of archaeological samples. Even though colour, degree of alteration, crystaloclast composition and texture are important properties by which sources can be identified, all of these features do not always lead to an unambiguous distinction. In this regard, the refractive index (ND) becomes a helpful tool because it is not only sensitive to the chemical composition of natural glasses but also to their different thermal histories. Obsidians from six localities of Patagonia were analysed. Their refractive index measurements (ND) only range between 1.47 and 1.49, but the ND values of some of these sources are sufficiently constrained to allow discrimination between them.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
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 http://hdl.handle.net/11336/18534
Fernández, María Victoria; Leal, Pablo Rodrigo; Determining the provenance of obsidian in southern Patagonia using optical properties; Wiley; Archaeometry; 56; S1; 7-2014; 1-18
0003-813X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/18534
identifier_str_mv Fernández, María Victoria; Leal, Pablo Rodrigo; Determining the provenance of obsidian in southern Patagonia using optical properties; Wiley; Archaeometry; 56; S1; 7-2014; 1-18
0003-813X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/arcm.12059
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/arcm.12059/abstract
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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