SPECIAL TECHNIQUES


pressure flaking
Pressure flaking is the process of forming an artifact by removing surplus material, in the form of chips and flakes, by a pressing force rather than by percussion (Crabtree 1982, 49).

"Pressure flaking involves removing flakes from the edge of a tool by pressing against it, usually with an antler or bone tool, instead of striking it. Pressure flaking is generally used for the final retouch on tools that were begun by other techniques." Whittaker 1994, 33

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burin technique (click here to see sequence)
Burin: A chisel-like implement derived from a flake or blade; the modification of other implements by using the burin technique to remove the edges parallel to their long axis and/or transversely or obliquely. Generally forms a right angle edge on one or both margins. The specialized flake removed as a result of the burin break is called a burin blade or burin spall" (Crabtree 1982, 27).

The negative scar produced by the removal of a burin spall is calleda burin facet. A burin is a tool which can take many forms, but all are made by the burin blow technique. This has been defined as the action of making the ´sides´ or facets of a burin.

A burin spall can be defined as "the part of a flake, blade, or bladelet detached by burin blow technique" (Tixier 1974, 9).

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micro-burin technique(click here to see sequence)
"Micro-burin: Waste product not intended for function. Usually the proximal or distal end of a blade. Residue of geometrical microlith industries." (Crabtree 1982, 43)

"Micro-burin Technique: Method of severing blades to make geometrical microliths. Technique requires first weakening the blade by marginal notching and then breaking it at the notch." (Crabtree 1982, 43) Also Brézillon 1977, 127-130

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Micro-burin technique can be acheived by use of an anvil


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or by pressure

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