Uniface knife/tools

chong2 · Oct 22, 2009

i dunno what all the hype is about,:P, but since everyone is putting some up, ill put this weekends up. the tan one is awesome, nice piece of a core.

pickaway · Oct 22, 2009

Nice ones... :thumbsup:

MANCHU · Oct 22, 2009

Good Job !! Nice finds !

uniface · Oct 22, 2009

Tnmountains · Oct 22, 2009

Nice work on those edges.You guys had a fun hunt it looks like.
HH
TnMtns

steve71 · Oct 31, 2009

i keep all my tools also.maybe someday i'll post them.nice finds

uniface · Nov 3, 2009

I just noticed (better late than never) that your white one like like it's a Backed Blade.

I.e., a blade because it looks like it's a uniface on both sides and was (before it broke) twice as long as wide. Backed because the edge opposite the cutting edge is at a right angle to enable more bearing pressure to be exerted on the working edge.

Seriously nice stuff :icon_thumleft:

chong2 · Nov 4, 2009

hey uni, ill snatch u a better pic when i get a chance, i will, promise.........better late than never

so ur saying the angle it broke at they decided to put some serration s to make better?

uniface · Nov 4, 2009

We're pretty deep into lithic technology here, but if you're game, I am too.

Last picture : it looks like your artifact was a blade (long, more or less parallel sides, uniface on the bottom edge and removal scar or scars parallel on top) taken off a polyhedral core (a chunk of chert with blades being knapped from one side only -- other removals on other sides running this way and that).

It also looks like the bulb of percussion (the point at which it was driven off the core) is at the top (in your picture), where the sides narrow down to a point. If there's a bulb there on the underside, as there seems to be, we're on the money with it thus far.

Now. From what it looks like, it would have been longer, originally. At the bottom of your picture you can see where it's been broken -- and possibly re-edged or knapped to even the edge out.

The edge (along its length, at right) that's at a right angle to the opposite edge (the re-worked one) makes it a backed blade. This flat edge would have been there before the blade was struck off.

Does this help any ?