The study assesses Paleoindian and Archaic period biface
assemblages to make inferences regarding changes in technological organization use in lower Tennessee River valley, then applies the ideal free distribution model to interpret changes in the spatial distribution of temporally diagnostic artifacts and archaeological sites in the lower Tennessee and Duck River drainages.
"There are more than 35,000 recorded sites in Oregon so far, and about 25 biface
caches have been found," Pouley said Monday in a telephone interview.
The standard model recognizes five stages or modes of ancient stone tool making: pebble, biface
, core, blade, and microlith.
Testing of the middle terrace in 2010 produced ample concentrations of debitage and bone, flake tools, microblades, a lanceolate biface
, and a deeply buried, intact hearth dating to 13 120-12830 cal BP (Beta-293544).
For example the Stone Age hand-axe, the Acheulean biface
, used by our ancestors 500,000 years ago, had been in use unchanged for more than a million years.
It would amount to asking whether human teeth function as a flint biface
or human legs function as a bicycle.
Tindale, Norman B 1949 'Large biface
implements from Mornington Island, Queensland and from South Western Australia', Records of the South Australian Museum 9:157-66.
excavated at Auwa is 124 mm long, though the limitation of the raw material is reflected by patches of cortex on both surfaces that show that the original block was only 44 mm thick (Fig.
appears to be between 13,200 and 15,500 years old and it includes biface
and blade technology that may have later been adapted and improved upon by the Clovis culture.