“…Peralkaline and calcalkaline varieties both occur near Bingöl, and these obsidians are known as "Bingöl A" and "Bingöl B," respectively (Cauvin et al, 1986). Only a few Near Eastern obsidian sources were extensively used in antiquity, and the Nemrut Da g and Bingöl obsidians are among the most important, transported throughout the region from the Epipalaeolithic onward.…”