eysehirErbaba. In 1978, Professors Jacques Louise Bordaz studied the artefacts excavated in the previous season at the Neolithic site of Erbaba. "In the course of the investigation, more than 700 chipped stone pieces of obsidian and flint were examined. As a preliminary step in a projected functional analysis to be carried out under high magnification, more than 400 obsidian blade fragments manifesting unspecialized retouch further were inspected for wear patterns.