Fuente de obsidiana El Peceño: primeros resultados de su abordaje tecnológico, geoquímico y espacial

Abstract

Resumen

Geoarchaeology and spatial distributions of the ‘Coche Quemado' obsidian source in north‐western Patagonia

“…Similar problems in the interpretations of the unusual use of obsidian sources, caused by sampling problems that do not include the different technological stages, have already been recorded in both the El Peceño source in southern Mendoza (Giesso et al . ; Salgán and Pompei ) and the Yuco source in southern Neuquén (Pérez et al . , ).…”

“…; Salgán et al . ; Salgán and Pompei ): (1) archaeological survey of the CQ locality and adjacent areas to identify the geographic boundaries of the source and geological depositation unit; (2) geochemical analyses of obsidian source materials and artefacts from CQ to identify possible sub‐sources; and (3) morphometric analyses of archaeological artefacts found at the CQ source and comparison of these to regional archaeological trends.…”

“…) and (2) low‐altitude extra‐Andean sources, associated with extensional settings situated on the eastern plains with annual access: El Peceño and Cerro Huenul (Barberena et al . ; Salgán and Pompei ). Recent studies support that high‐altitude sources such as Las Cargas and Laguna del Maule were the most intensively exploited sources with the largest spatial and temporal distribution in the archaeological record (Salgán et al .…”

“…While Laguna del Diamante, El Peceño and Cerro Huenul were mainly used during the last 2000 years (Cortegoso et al . ; Salgán and Pompei ). However, 4% of the total artefacts analysed still correspond to unknown sources.…”

“…Obsidian provenance studies in north-west Patagonia have been carried out since the 1990s (e.g., Seelenfreund et al 1996;Durán et al 2004) and have provided invaluable information on both the local and the extra-regional availability of raw materials, human interactions, home range, migrations and exchange/trade (e.g., Giesso et al 2008Giesso et al , 2011Barberena et al 2011;Durán et al 2012;Cortegoso et al 2012;Salgán 2013;Stern and Aguerre 2013;Fernández et al 2017;Salgán and Pompei 2017;Stern 2017). In southern Mendoza, these studies have allowed the identification of five geological sources and sub-sources of obsidian, and the use of nine other obsidian geochemical varieties, of which at least two correspond to unknown provenances Salgán et al 2015;Fernández et al 2017).…”