Ornamental beads in a hunter-gatherers context from the Córdoba Province: a mineralogical and microstructural analysis of a “Borus” shell

In this article, we analyze the mineralogical composition and microstructure of the “Borus” gastropod (Megalobulimus lorentzianus), which is local to the Córdoba Province. The gastropod was compared against a typical ornamental bead from a hunter-gatherers archaeological site located in the northwes...

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Autores principales: Boretto, Gabriella M., Gordillo, Sandra, Izeta, Andrés, Colombo, Fernando, Martinelli, Marisa, Cattáneo, Roxana
Formato: Artículo publishedVersion
Lenguaje:Español
Publicado: Instituto de Arqueología, Facultad de Filosofía y Letras, Universidad de Buenos Aires 2018
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Acceso en línea:http://revistascientificas.filo.uba.ar/index.php/Arqueologia/article/view/4234
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id I10-R181-suquia-9556
record_format dspace
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-181
collection Suquía - Instituto de Antropología de Córdoba (IDACOR, CONICET y UNC)
language Español
topic Megalobulimus lorentzianus
Mineralogical composition
Microstructure
Hunter-gatherers
Ongamira
Córdoba
Megalobulimus lorentzianus
Composición mineralógica
Microestructura
Cazadores-recolectores
Ongamira
Córdoba
spellingShingle Megalobulimus lorentzianus
Mineralogical composition
Microstructure
Hunter-gatherers
Ongamira
Córdoba
Megalobulimus lorentzianus
Composición mineralógica
Microestructura
Cazadores-recolectores
Ongamira
Córdoba
Boretto, Gabriella M.
Gordillo, Sandra
Izeta, Andrés
Colombo, Fernando
Martinelli, Marisa
Cattáneo, Roxana
Ornamental beads in a hunter-gatherers context from the Córdoba Province: a mineralogical and microstructural analysis of a “Borus” shell
topic_facet Megalobulimus lorentzianus
Mineralogical composition
Microstructure
Hunter-gatherers
Ongamira
Córdoba
Megalobulimus lorentzianus
Composición mineralógica
Microestructura
Cazadores-recolectores
Ongamira
Córdoba
description In this article, we analyze the mineralogical composition and microstructure of the “Borus” gastropod (Megalobulimus lorentzianus), which is local to the Córdoba Province. The gastropod was compared against a typical ornamental bead from a hunter-gatherers archaeological site located in the northwest region of the same province, with the aim of producing new tools to identify the raw materials used in bead manufacture. An X-ray diffraction analysis of a modern “Borus” shell specimen indicated that from a mineralogical standpoint it was composed entirely of aragonite, a calcium carbonate polymorph (CaCO3) that crystallizes in the orthorhombic system. In addition, an analysis of its microstructure using laser electron confocal microscope identified a prismatic microstructure. These same analyses, undertaken on a bead from the archaeological site of Alero Deodoro Roca (Ongamira valley, Córdoba Province) revealed the same mineralogical composition and prismatic arrangement, leading to interpret the bead as having a taxonomic affiliation to “Borus” shell. With the addition of new materials, in the future this type of analysis will provide insights regarding specialization in the elaboration of beads and exchange networks in the central region of Argentina.
format Artículo
publishedVersion
author Boretto, Gabriella M.
Gordillo, Sandra
Izeta, Andrés
Colombo, Fernando
Martinelli, Marisa
Cattáneo, Roxana
author_facet Boretto, Gabriella M.
Gordillo, Sandra
Izeta, Andrés
Colombo, Fernando
Martinelli, Marisa
Cattáneo, Roxana
author_sort Boretto, Gabriella M.
title Ornamental beads in a hunter-gatherers context from the Córdoba Province: a mineralogical and microstructural analysis of a “Borus” shell
title_short Ornamental beads in a hunter-gatherers context from the Córdoba Province: a mineralogical and microstructural analysis of a “Borus” shell
title_full Ornamental beads in a hunter-gatherers context from the Córdoba Province: a mineralogical and microstructural analysis of a “Borus” shell
title_fullStr Ornamental beads in a hunter-gatherers context from the Córdoba Province: a mineralogical and microstructural analysis of a “Borus” shell
title_full_unstemmed Ornamental beads in a hunter-gatherers context from the Córdoba Province: a mineralogical and microstructural analysis of a “Borus” shell
title_sort ornamental beads in a hunter-gatherers context from the córdoba province: a mineralogical and microstructural analysis of a “borus” shell
publisher Instituto de Arqueología, Facultad de Filosofía y Letras, Universidad de Buenos Aires
publishDate 2018
url http://revistascientificas.filo.uba.ar/index.php/Arqueologia/article/view/4234
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