El uso de canteras en el valle del Diamante: un enfoque desde la arqueología distribucional

The distributional studies in the Diamante valley, northwestern Patagonia, allowed the comparison in the use of space between ecological zones, with robust results in piedmont and highlands. The analysis of densities of archaeological materials and the lithic organization helped to detect presence of sources of basalts, cryptocrystalline and other raw materials. The piedmont showed more presence of basalt secondary sources and a source of rhyolites located at 2km from water sources. In the highlands, a diminished used of basalts complements with higher use of cryptocrystalline and obsidian rocks. These results show the importance of the Regional Lithic Resources Base for the lithic organization, with a predominant use of local raw materials. The results for the Diamante valley indicate: 1) basalts and cryptocrystalline rocks were used by embedded acquisition during other subsistence activities. 2) The use of sources of other raw materials was done in context of higher distance to water sources. 3) The incorporation of obsidians occurs in minimal proportions, linked mainly to mitigate risk in highlands occupations.