ABSTRACT
Unretouched flakes Unretouched flakes are highly variable in plan form. Although some are more or less triangular, most are irregularly shaped. A small minority exhibits lipping on the ventral surface below the bulb of percussion and other features of soft hammer percussion, but the overwhelming majority were products of direct hard hammer percussion. Of 145 unretouched flakes in the collection, 37 are whole, while 108 are snapped or otherwise broken. In total, 18 of the unretouched flakes are chert; the chert flakes represent at least six different color categories, covering a range of greens, greys, and browns. A total of 31 (83.8%) of the unretouched flakes are made of fine-grained volcanic rocks (Tables 11.1 and 11.2).
