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PHOTOS: Tine specific post hammerstone flaking, in reverse

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AncientTech:
Warning:  This post contains "photos".

le0n:
^^ nice point.

thanks for posting each tool with each phase.

Tower:
Tech, may I ask what you are striking your puntch  with? I've kinda been experimenting with them myself.   With that said I'm finding I have no handicap using direct percussion  Tower

AncientTech:

--- Quote from: le0n on March 20, 2016, 08:50:21 pm ---^^ nice point.

thanks for posting each tool with each phase.

--- End quote ---

In some instances, I am actually alternating tool processes. 

AncientTech:

--- Quote from: Tower on March 20, 2016, 08:54:31 pm ---Tech, may I ask what you are striking your puntch  with? I've kinda been experimenting with them myself.   With that said I'm finding I have no handicap using direct percussion  Tower

--- End quote ---

In this case, stone and antler, depending on certain factors.  At times, the different effects of different strikers can be seen in the flake scars.  In other cases, with other tools, I use primarily a wooden striker.  Here is an example of a flake made with a wooden striker:







Even though a wooden striker was used in the previous photos, this does not mean that the energy from the blow went directly through antler, though the process is indirect percussion. 

By the way, percussion works great on brittle materials, such as obsidian, and heat treated chert.  Native obsidian workers still use hammerstone direct percussion, today.  But, in working high grade materials, that people routinely heat treat for up to twelve hours (such as raw Colha chert), breakage requires extremely hard blows that generate a profound degree of force.  Yet, these blows cannot produce an over-abundance of hard shock.  Otherwise, the hard shock will internally damage the finely grained stone.  With the proper technologies, one can channel excessive amounts of force, while minimizing the amounts of shock involved.  Force and shock are not the same thing.

   

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