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Experiments to explore the Paleoindian flake-core technology in southern Patagonia
Figure 4. Bifacial preparation of the core
tion
with the small soft hammerstone, b-c)
de las Mercedes Cuadrado Woroszylo).
tached around the margin on one face or irregularly, by alternate detach
ment on both faces (see Figs. 4 to 9). However, in the experiment described
on one surface and then the opposite. Sometimes, due to the natural form
necessary. Furthermore, by isolating selected points of impact and following
an adequate and carefully prepared platform with an angle of 80°, I abraded
the material with the granite soft stone and afterwards, in order to detach
When the platform angle was a little higher (~ 85°) I had to use the heavy
also valid for high graded lithic raw materials, such as quartzite and rhyolites
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