Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia

Autores
Fernández, María Victoria; Stern, Charles R.; Leal, Pablo Rodrigo
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Obsidian raw material has been widely used in central and southern Patagonia from the beginning of the occupation of this region. In NW Santa Cruz province, Argentina, the geochemical analyses published to date suggest that Pampa del Asador was the main obsidian source. However, both the spatial and temporal limits of the distribution of obsidians from this and other sources in the region remain undefined. The principal goal of this article is to characterize obsidian artifacts from archaeological sites, located in a portion of NW Santa Cruz, from which there is no available geochemical information. ICP-MS analyses were obtained for 49 obsidian artifacts recovered from 24 excavated rockshelters and open-air surface scatters. The results indicate that all the samples of black obsidian came from the Pampa del Asador source, located ~90-160km to the south. Two samples of grey obsidian discovered on the top of Meseta del Lago Buenos Aires are chemically different from any other archeological obsidian yet analyzed in southern Patagonia. Their origin is still unknown, but they are most likely derived from a local Meseta del Lago Buenos Aires obsidian source. These results contribute to the knowledge about the use of obsidian in NW Santa Cruz, and provide constraints on the communication and material exchange between different environments and basins in this region.
Fil: Fernández, María Victoria. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Stern, Charles R.. State University of Colorado at Boulder; Estados Unidos
Fil: Leal, Pablo Rodrigo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
ARGENTINA
GEOCHEMICAL ANALYSIS
NW SANTA CRUZ
OBSIDIAN
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:11336/112729
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/112729
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine PatagoniaFernández, María VictoriaStern, Charles R.Leal, Pablo RodrigoARGENTINAGEOCHEMICAL ANALYSISNW SANTA CRUZOBSIDIANPATAGONIAhttps://purl.org/becyt/ford/6.1https://purl.org/becyt/ford/6Obsidian raw material has been widely used in central and southern Patagonia from the beginning of the occupation of this region. In NW Santa Cruz province, Argentina, the geochemical analyses published to date suggest that Pampa del Asador was the main obsidian source. However, both the spatial and temporal limits of the distribution of obsidians from this and other sources in the region remain undefined. The principal goal of this article is to characterize obsidian artifacts from archaeological sites, located in a portion of NW Santa Cruz, from which there is no available geochemical information. ICP-MS analyses were obtained for 49 obsidian artifacts recovered from 24 excavated rockshelters and open-air surface scatters. The results indicate that all the samples of black obsidian came from the Pampa del Asador source, located ~90-160km to the south. Two samples of grey obsidian discovered on the top of Meseta del Lago Buenos Aires are chemically different from any other archeological obsidian yet analyzed in southern Patagonia. Their origin is still unknown, but they are most likely derived from a local Meseta del Lago Buenos Aires obsidian source. These results contribute to the knowledge about the use of obsidian in NW Santa Cruz, and provide constraints on the communication and material exchange between different environments and basins in this region.Fil: Fernández, María Victoria. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Stern, Charles R.. State University of Colorado at Boulder; Estados UnidosFil: Leal, Pablo Rodrigo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaPergamon-Elsevier Science Ltd2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/112729Fernández, María Victoria; Stern, Charles R.; Leal, Pablo Rodrigo; Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia; Pergamon-Elsevier Science Ltd; Quaternary International; 375; 7-2015; 44-541040-6182CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2014.11.013info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1040618214008581info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:31:37Zoai:ri.conicet.gov.ar:11336/112729instacron: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 11:31:37.371CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia
title Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia
spellingShingle Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia
Fernández, María Victoria
ARGENTINA
GEOCHEMICAL ANALYSIS
NW SANTA CRUZ
OBSIDIAN
PATAGONIA
title_short Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia
title_full Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia
title_fullStr Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia
title_full_unstemmed Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia
title_sort Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia
dc.creator.none.fl_str_mv Fernández, María Victoria
Stern, Charles R.
Leal, Pablo Rodrigo
author Fernández, María Victoria
author_facet Fernández, María Victoria
Stern, Charles R.
Leal, Pablo Rodrigo
author_role author
author2 Stern, Charles R.
Leal, Pablo Rodrigo
author2_role author
author
dc.subject.none.fl_str_mv ARGENTINA
GEOCHEMICAL ANALYSIS
NW SANTA CRUZ
OBSIDIAN
PATAGONIA
topic ARGENTINA
GEOCHEMICAL ANALYSIS
NW SANTA CRUZ
OBSIDIAN
PATAGONIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/6.1
https://purl.org/becyt/ford/6
dc.description.none.fl_txt_mv Obsidian raw material has been widely used in central and southern Patagonia from the beginning of the occupation of this region. In NW Santa Cruz province, Argentina, the geochemical analyses published to date suggest that Pampa del Asador was the main obsidian source. However, both the spatial and temporal limits of the distribution of obsidians from this and other sources in the region remain undefined. The principal goal of this article is to characterize obsidian artifacts from archaeological sites, located in a portion of NW Santa Cruz, from which there is no available geochemical information. ICP-MS analyses were obtained for 49 obsidian artifacts recovered from 24 excavated rockshelters and open-air surface scatters. The results indicate that all the samples of black obsidian came from the Pampa del Asador source, located ~90-160km to the south. Two samples of grey obsidian discovered on the top of Meseta del Lago Buenos Aires are chemically different from any other archeological obsidian yet analyzed in southern Patagonia. Their origin is still unknown, but they are most likely derived from a local Meseta del Lago Buenos Aires obsidian source. These results contribute to the knowledge about the use of obsidian in NW Santa Cruz, and provide constraints on the communication and material exchange between different environments and basins in this region.
Fil: Fernández, María Victoria. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Arqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Stern, Charles R.. State University of Colorado at Boulder; Estados Unidos
Fil: Leal, Pablo Rodrigo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Obsidian raw material has been widely used in central and southern Patagonia from the beginning of the occupation of this region. In NW Santa Cruz province, Argentina, the geochemical analyses published to date suggest that Pampa del Asador was the main obsidian source. However, both the spatial and temporal limits of the distribution of obsidians from this and other sources in the region remain undefined. The principal goal of this article is to characterize obsidian artifacts from archaeological sites, located in a portion of NW Santa Cruz, from which there is no available geochemical information. ICP-MS analyses were obtained for 49 obsidian artifacts recovered from 24 excavated rockshelters and open-air surface scatters. The results indicate that all the samples of black obsidian came from the Pampa del Asador source, located ~90-160km to the south. Two samples of grey obsidian discovered on the top of Meseta del Lago Buenos Aires are chemically different from any other archeological obsidian yet analyzed in southern Patagonia. Their origin is still unknown, but they are most likely derived from a local Meseta del Lago Buenos Aires obsidian source. These results contribute to the knowledge about the use of obsidian in NW Santa Cruz, and provide constraints on the communication and material exchange between different environments and basins in this region.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
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/11336/112729
Fernández, María Victoria; Stern, Charles R.; Leal, Pablo Rodrigo; Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia; Pergamon-Elsevier Science Ltd; Quaternary International; 375; 7-2015; 44-54
1040-6182
CONICET Digital
CONICET
url http://hdl.handle.net/11336/112729
identifier_str_mv Fernández, María Victoria; Stern, Charles R.; Leal, Pablo Rodrigo; Geochemical analysis of obsidian from archaeological sites in northwestern Santa Cruz Province, Argentine Patagonia; Pergamon-Elsevier Science Ltd; Quaternary International; 375; 7-2015; 44-54
1040-6182
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2014.11.013
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1040618214008581
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
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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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