a Paleolithic or later stone tool made from a flake struck from a larger core.[1945-50]
* * *Stone Age devices, usually flint (see chert and flint), shaped by flaking off small particles or by breaking off a large flake to use as a tool.Prehistoric humans preferred flint and similar siliceous stones because of the ease with which they could be chipped and for their sharp cutting edges. They also used sandstones, quartzites, quartz, obsidian, and volcanic rocks. Stone tools were chipped by striking a block of flint with a hammer of stone, wood, or bone or by striking the block itself on the edge of a fixed stone. Pressure flaking consists of applying pressure by means of a pointed stick or bone near the edge of a flake or blade, to detach small flakes, and was used mostly to put the finishing touches on tools. See also stone-tool industry.
* * *▪ prehistoric technologyStone Age hand tools, usually flint, shaped by flaking off small particles, or by breaking off a large flake which was then used as the tool.Whenever they were available, prehistoric man preferred to use flint and similar siliceous stones, both because of the ease with which they could be chipped and for the sharp cutting edges characteristic of this type of material. However, in many regions flint does not exist, and man was obliged to use whatever material was easily available, such as sandstones, quartzites, quartz, obsidian and various volcanic rocks.The basic principle in the manufacture of stone tools is the removal of a flake or series of flakes from a stone matrix. It is characteristic of all stone that a blow struck near an edge of a block will detach a chip or flake. Flakes may be removed from blocks by various natural causes such as wave action, pressure in the earth, and soil creep; but those produced intentionally by man exhibit definite characteristics. Their most important attribute is the bulb of percussion which appears on the lower surface of the flake just below the point where the blow was struck. Bulbs of percussion vary in size and shape, depending on the force and direction of the blow, the nature of the stone, and the nature of the object with which the blow was struck. The block from which a flake has been detached, the core or nucleus, bears the imprint of the bulb in the form of a bulbular cavity and also lateral ridges left by the removal of the flake. These ridges often form a definite pattern, showing that a piece has unquestionably been the work of man. Flaking produced by natural causes is usually haphazard, and fractures by frost or heat are characterized by a series of concentric rings as opposed to the ripple marks left by a man-made fracture.Stone tools were chipped by two principal methods: percussion and pressure. Chipping by percussion may be done either by striking a block of flint with a hammer of stone, wood, or bone held in the hand or by striking the block itself on the edge of a fixed stone; the latter method is called the anvil method. The use of a wooden billet or bar permits the removal of longer, thinner, and flatter flakes; and, because wood is resilient, it does not shatter the edge of the flint, and it leaves smaller and flatter bulbs than those obtained by stone on stone. Pressure flaking, as the name implies, consists of applying pressure by means of a pointed stick or bone near the edge of a flake or blade, to detach small flakes from both sides. This method was used mostly to put the finishing touches on tools or to produce a desired shape.
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flake tool — flake′ tool n. ant a Paleolithic or later stone tool made from a flake struck from a larger core • Etymology: 1945–50 … From formal English to slang
flake tool — noun : a Stone Age tool that is a flake of stone struck off from a larger piece and sometimes retouched compare core tool * * * a Paleolithic or later stone tool made from a flake struck from a larger core. [1945 50] * * * flake tool, a… … Useful english dictionary
Flake tool — In archaeology a flake tool is a type of stone tool created by striking a flake from a prepared stone core.The flake could be sharpened by retouch to create scrapers or burins.References*Darvill, T (ed.) (2003). Oxford Concise Dictionary of… … Wikipedia
flake tool — noun Date: circa 1947 a Stone Age tool that is a flake of stone struck off from a larger piece called also flake … New Collegiate Dictionary
flake — flake1 flakeless, adj. flaker, n. /flayk/, n., v., flaked, flaking. n. 1. a small, flat, thin piece, esp. one that has been or become detached from a larger piece or mass: flakes of old paint. 2. any small piece or mass: a flake of snow. 3. a… … Universalium
flake — I. noun Etymology: Middle English; akin to Old English flacor flying (of arrows), Old Norse flakna to flake off, split Date: 14th century 1. a small loose mass or bit < flakes of snow > 2. a thin flattened piece or layer ; chip 3. slang … New Collegiate Dictionary
tool — tooler, n. toolless, adj. /toohl/, n. 1. an implement, esp. one held in the hand, as a hammer, saw, or file, for performing or facilitating mechanical operations. 2. any instrument of manual operation. 3. the cutting or machining part of a lathe … Universalium
flake — 1. noun /fleɪk/ a) A loose filmy mass or a thin chiplike layer of anything; a film; flock; lamina; layer; scale; as, a flake of snow, paint, or fish. She makes pleasant conversation, but shes kind of a flake when it comes time fo … Wiktionary
flake — 1. n. & v. n. 1 a a small thin light piece of snow. b a similar piece of another material. 2 a thin broad piece of material peeled or split off. 3 Archaeol. a piece of hard stone chipped off and used as a tool. 4 a natural division of the flesh… … Useful english dictionary
flake — flake1 noun 1》 a small, flat, very thin piece of something. ↘Archaeology a piece of hard stone chipped off for use as a tool. 2》 a snowflake. 3》 N. Amer. informal a crazy or eccentric person. verb 1》 come away from a surface in flakes. 2》… … English new terms dictionary