Uniface knife/tools
- Thread starter chong2
- Start date
P
pickaway
Guest
Nice ones... 
MANCHU
Full Member
Good Job !! Nice finds !
uniface
Silver Member
- Jan 27, 2009
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Tesoro Conquistador freq shift
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Nice work on those edges.You guys had a fun hunt it looks like.
HH
TnMtns
HH
TnMtns
uniface
Silver Member
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
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
so ur saying the angle it broke at they decided to put some serration s to make better?
uniface
Silver Member
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 ?
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 ?
