USO DE OBSIDIANAS ENTRE LOS CAZADORES-RECOLECTORES EN EL BOSQUE DEL LAGO TRAFUL, NOROESTE DE LA PATAGONIA, ARGENTINA

** Y CHARLES R. STERN *** ABSTRACT The results of a geochemical analysis of obsidian artifacts from the archaeological sites Los Cipreses and Lariviere rock-shelter, located in the area of Traful lake, southern Neuquen, Argentina are presented. Obsidian was utilized in this area continuously over the last 3.500 years by groups of hunter-gatherers. Until now, the number and location of the sources where this obsidian was obtained was unknown. The results obtained in this study indicate the use of two specifi c types of obsidian without interruption and constrain probable regional range of movement and interchange of this raw material.