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Chungará (Arica)

versión On-line ISSN 0717-7356

Resumen

GURAIEB, Ana Gabriela. SELECCIÓN DE MATERIAS PRIMAS PARA LA CONFECCIÓN DE RASPADORES EN CONTEXTO DE CERRO DE LOS INDIOS 1 (LAGO POSADAS, SANTA CRUZ, ARGENTINA). Chungará (Arica) [online]. 2004, vol.36, suppl., pp.15-28. ISSN 0717-7356.  http://dx.doi.org/10.4067/S0717-73562004000300005.

Endscrapers are one of the most abundant tool classes in Cerro de los Indios 1 contexts. They were mainly manufactured in different varieties of siliceous rocks. In a lesser extent, obsidian and andesit were also used. This paper evaluates the temporal tendency in the utilisation of different raw materials, from layer 11, dated before 1860 years bp, until the latest, probably of historical times. The regional lithic resources availability and its incidence in the selection of suitable rocks is also taken into account in this analysis. Edge angles (discriminated between active and dull) as pointers of use-life, have been related to raw materials to evaluate its change through time. In the first moments of the occupation sequence considered, the analysis show the discard of heavy utilized endscrapers in all raw materials. It is also evident a tendency of shorter use lives towards the youngest stratigraphical levels

Palabras clave : Patagonia; hunters-gatherers; lithic technology; endscrapers; raw materials; edge angles.

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