ttRDLi^KAl STONE INDUSTRIES OP THE ARGENTINE COAST 

 Chipped White Quartzites 



139 



The collection embraces many hundreds of chipped articles, flakes, 

 and fragments made of a fine-grained, light-colored, somewhat glassy 

 quartzite, a material not found along the coast, but obtained presum- 

 ably from outcrops in the hills to the west. Occasionally small masses, 

 apparently nuclei from which fragments and flakes have been broken 

 off, are encountered along the coast, and one specimen of this kind 



Pig. 27. Nucleus of quartzite from which flakes have 

 been removed. (^ actual size.) Campo Peralta. 



Fig. 28. Arrow points of quartzite. 

 (J actual size. ) Campo Peralta. 



weighing several pounds was brought away by Doctor Hrdlicka (fig. 27). 

 These quartzite objects occur invariably in intimate association with 

 the dark-pebble implements on the shore-land sites. They include 

 arrowheads, duck-bill scrapers, flat-faced (plano-convex) blades, and 

 spike- or drill-like forms, as well as numerous fragments and flakes — 



o bed 



Fig. 29. Quartzite scrapers of duck-bill type, o, 6, c, Campo Peralta. d, Necochea. 



the refuse of local chipping. Examples are illustrated in the accom- 

 panying figures. The arrowheads are few in number and of ordinary 

 types (fig. 28). The numerous scrapers, characterized by abruptly 

 beveled edges, or more properly, ends (fig, 29), are identical with the 

 scrapers used by the tribes south of Bahia Blanca as well as by many 

 other tribes in both South and North America. They were prob- 



