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A blank is a stone of suitable size and shape to be worked into a stone tool. Blanks are the starting point of a lithic reduction process, and during prehistoric times were often transported or traded for later refinement at another location.
The purpose of core reduction may be to rough out a blank for later refinement into a projectile point, knife, or other stone tool, or it may be performed in order to obtain sharp flakes, from which a variety of simple tools can be made. Generally, the presence of a core is indicative of the latter process, since the former process usually ...
The artifacts, found preserved in soil under a later lava flow and dated at 325,000–335,000 years old, were a mix of two distinct stone tool technology traditions: bifacial tools and Levallois tools. Daniel Adler suggests that the coexistence of bifacial and Levallois tools at the site provides the first clear evidence that local populations ...
In contrast to an Oldowan tool, which is the result of a fortuitous and probably unplanned operation to obtain one sharp edge on a stone, an Acheulean tool is a planned result of a manufacturing process. The manufacturer begins with a blank, either a larger stone or a slab knocked off a larger rock.
Blank or Blanks may refer to: Blank (archaeology), a thick, shaped stone biface for refining into a stone tool; Blank (cartridge), a type of gun cartridge; Blank (Scrabble), a playing piece in the board game Scrabble; Blank (solution), a solution containing no analyte; A planchet or blank, a round metal disk to be struck as a coin
Fundamental elements for the technic description of a lithic flake. In archaeology, a lithic flake is a "portion of rock removed from an objective piece by percussion or pressure," [1]: 255 and may also be referred to as simply a flake, or collectively as debitage.
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Normally lancing is done on a mechanical press, lancing requires the use of punches and dies to be used. The different punches and dies determine the shape and angle (or curvature) of the newly made section of the material. The dies and punches are needed to be made of tool steel to withstand the repetitious nature of the procedure. [2]
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