Abstract

HEIDER, Guillermo; SALGAN, María Laura; NEME, Gustavo  and  GIL, Adolfo. Lithic resources and vectors of interaction in the central pampas of Argentina: an approach from the use of the obsidian. Rev. Mus. Antropol. [online]. 2022, vol.15, n.2, pp.23-36. ISSN 1852-060X.  http://dx.doi.org/http://doi.org/10.31048/1852.4826.v15.n2.34990.

Abstract In this paper we present the first results of the techno-morphological and geochemical analyzes carried out on 12 pieces of obsidian recovered in the North of Pampa Seca (south of Córdoba and San Luis). In this area, an increase in occupation was proposed for the late Holocene, together with recurrence in the occupation of the sites and the presence of technological strategies that we qualify as conserved in most contexts. In this framework, the identification of exotic resources, such as orthoquartzite and obsidian stands out, which had no antecedents of previous studies. Obsidian artifacts were recorded at 11 surface sites distributed throughout the area. By means of the X-ray Fluorescence technique, three sources of obsidian were identified that link local groups with resources from the western mountain range and foothills, between 250 and 575 km apart. In this sense, the technological strategy applied for its management allows confirming the infrequent presence of obsidian in the equipment of hunter-gatherers in the Pampean region, introduced as part of social interaction networks between populations.

Keywords : North of the Dry Pampas; Obsidian; Technological management; Geochemistry; Circulation of goods.

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