L’uso dell’ossidiana nell’insediamento preistorico di Craviole Paderi – Sestu

Potsherds, lithic material and bones, were collected from a field at some 1.5 km north-west of Sestu (CA). Pottery refers to the Ozieri culture (Late Neolithic), to the Sub-Ozieri culture (Early Chacolithic), and to the Monte Claro culture (Late Chalcolithic).
Obsidian remains (c. 1500 flakes, blades and chips) were analyzed in order to reconstruct the chaine opératoire, from raw material procurement, to tool production and discard.
Obsidian was apparently introduced as little pebbles – probably collected from the surface of alluvial expanses – then reduced on site. There are many cortical flakes, resharpening flakes, unretouched fragments and exhausted cores, suggesting difficulty in raw material procurement. Scaled pieces were also retrieved in great numbers, and analyzed into some detail, as they are not well documented at other Sardinian sites.