supported by the National Basic Research Program of China (Grant No. 2006CB806400);Specific Basic Research Program of Ministry of Sciences and Technology of China (Grant No. 2007FY110200);National Natural Science Foundation of China (Grant Nos. 40502006 and J0630965);CAS/SAFEA International Partnership Program for Creative Research Teams;Henry Luce Foundation Fellowship for East and Southeast Asian Archaeology and Early History (ACLS);Royal Ontario Museum Research Grant
Chipped-stone "adze-shaped objects" (ASOs) were identified from a few Upper Palaeolithic sites in northern China. Its morpho- logical form resembles to ground-stone type-specific adze, but the function of the ASO has ...