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Archaeologists define a chopper as a pebble tool with an irregular cutting edge formed through the removal of flakes from one side of a stone. Choppers are crude forms of stone tool and are found in industries as early as the Lower Palaeolithic from around 2.5 million years ago.
Oldowan-tradition stone chopper. Mary Leakey classified the Oldowan tools as Heavy Duty, Light Duty, Utilized Pieces and Debitage, or waste. [27] Heavy-duty tools are mainly cores. A chopper has an edge on one side. It is unifacial if the edge was created by flaking on one face of the core, or bifacial if on two.
In archaeology a chopping tool is a stone tool. Stone tools are usually dated by determining the age of the find context e.g. by carbon-14 dating and potassium–argon dating. The oldest stone tools are about 3 million years old. Chopping tools mainly occur in the Olduwan (2.9 to 1.6 million years ago).
The Leakeys determined that choppers were the most common stone tool found at the gorge, amounting to over half of the total number, and identified 11 Oldowan sites in the gorge, 9 in Bed I, and 2 in Bed II. They also identified the Developed Oldowan as the subsequent diverse tool-kit found in Beds II, III, and IV, with small tools made mostly ...
In archaeology a chopper core is a suggested type of stone tool created by using a lithic core as a chopper following the removal of flakes from that core. They may be a very crude form of early handaxe although they are not bifacially-worked and there is debate as to whether chopper cores were ever used as tools or simply discarded after the desired flakes were removed.
The cores were used as choppers. The shapes of the lithic flakes do not follow a standard pattern. [3] While historically the Clactonian industry was thought to have used stone only to create lithic artifacts, recent evidence has been found supporting the use of animal bones as soft hammers for stone knapping. [1]
Chopper (archaeology), a stone tool; Chopper (electronics), a switching device; Chopper (ghost), an alleged ghost in Germany; Chopper (propeller), a propeller design; Chopper (rap), a vocal delivery style; Chopper (Star Wars character), a droid from the Star Wars Rebels animated series; Nick Chopper, the Tin Woodman in L. Frank Baum's Oz series
The first published picture of a hand axe, drawn by John Frere in the year 1800. Flint hand axe found in Winchester. A hand axe (or handaxe or Acheulean hand axe) is a prehistoric stone tool with two faces that is the longest-used tool in human history. [1]