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Posted by / 30-Mar-2016 22:17

Dating sites for nigerian christians

context with other similar artifacts; the study of artifact classes with common characteristics; classification according to artifact type technology.

Tools produced by the removal of flakes (or chips, commonly referred to as debitage) from the stone to create a sharp surface.

In African terminology, the entire series of CATEGORY: feature DEFINITION: A place where a specific ancient activity was located or carried out, such as food preparation or stone toolmaking.

The conventional borderline between Abbevillian and Acheulian is marked by a technological innovation in the working of stone implements, the use of a of soft material (wood, bone, antler) in place of a hammerstone.Therefore, the line is sometimes hard to draw between a natural object and one used by man, but there is no doubt when it can be shown that man shaped it in any way, even if only accidentally in the course of use.Artifacts are individually assignable to ceramic, lithic, metal, or organic, or other lesser-used categories.Projectile points, bifaces, unifaces, and cores are common flaked stone artifact types.SYNONYMS OR RELATED TERMS: ground stone, polished tool, ground-stone artifact, groundstone CATEGORY: lithics DEFINITION: A class of lithic (stone) artifacts produced by abrasion -- grinding or pecking -- and formed into a tool or vessel.

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The earliest appearance of hand axes in Europe is still refereed to by some workers as Abbevillian, denoting a stage when hand axes were still made with crude, irregular devices.

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