北海道青苗遺跡出土ガラス玉類の考古科学的検討

抄録

This study examines bead-making technique and chemical composition of glass beads excavated from Aonae Site in Okushiri Island, Hokkaido. All of them are secondary processed beads by winding method, containing one 'eye bead' decorated with yellow and yellowish green pieces of glass. The results of chemical analysis by energy dispersive X-ray spectrometry (EDX) revealed that they had made of plant-ash type of soda glass colored by cobalt, and they can be classed in two groups which are different from each other in the distribution period.