Paleolithic tools
Flint (tool)
Prehistoric stone-working techniques of the Palaeolithic are divided into four 'Modes' The Mode 1 industries (Oldowan, Clactonian) created rough flake tools by hitting a suitable stone with a hammerstone. The resulting flake would have a natural sharp edge for cutting and could afterwards be sharpened further by striking another smaller flake from the edge if necessary (known as retouch). These early toolmakers may also have worked the stone they took the flake from (known as a core) to create chopper cores although there is some debate over whether these items were tools or just discarded cores The Mode 2 (eg Acheulean or Biface) toolmakers also used the Mode 1 flake tool method but supplemented it by also using wood or bone implements to pressure flake fragments away from stone cores to create the first true hand-axes. The use of a soft hammer made from wood or bone also resulted in more control over the shape of the finished tool. Unlike the earlier Mode 1 industries, the core was prized over the flakes that came from it. Another advance was that the Mode 2 tools were worked symmetrically and on both sides (hence the name Biface) indicating greater care in the production of the final tool.
Mode 3 technology emerged towards the end of Acheulean dominance and involved the Levallois technique. It is commonly associated with Neanderthal Mousterian industry. The long blades (rather than flakes) of the Upper Palaeolithic Mode 4 industries appeared during the Upper Palaeolithic[2]. The Aurignacian culture is a good example of mode 4 tool production. Mode 5 stone tools involve the production of Microliths. Examples include the Magdalenian culture.
Polished stone tools
An array of Neolithic artifacts, including bracelets, axe heads, chisels, and polishing tools.
Five types of tools found in Ecuador
Ground stone tools became important during the Neolithic period. These ground or polished implements are manufactured from larger-grained materials such as basalt, greenstone and some forms of rhyolite which are not suitable for flaking. The greenstone industry was important in the English Lake District, and is known as the Langdale axe industry. Ground stone implements included adzes, celts, and axes, which were manufactured using a labour-intensive, time-consuming method of repeated grinding against an abrasive stone, often using water as a lubricant. Because of their coarse surfaces, some ground stone tools were used for grinding plant foods and were polished not just by intentional shaping, but also by use. Manos are hand stones used in conjunction with metates for grinding corn or grain. Polishing increased the intrinsic mechanical strength of the axe. Polished stone axes were important for the widespread clearance of woods and forest during the Neolithic period, when crop and livestock farming developed on a large scale.
References
^ Barton, RNE, Stone Age Britain English Heritage/BT Batsford:London 1997 qtd in Butler, 2005. See also Wymer, JJ, The Lower Palaeolithic Occupation of Britain, Wessex Archaeology and English Heritage, 1999.
^ Lewin, R., Foley, R. A. 2004. Principles of Human Evolution (2nd Ed.) Blackwell Science, UK. ISBN: 0-632-04704-6
Flint (tool)
Prehistoric stone-working techniques of the Palaeolithic are divided into four 'Modes' The Mode 1 industries (Oldowan, Clactonian) created rough flake tools by hitting a suitable stone with a hammerstone. The resulting flake would have a natural sharp edge for cutting and could afterwards be sharpened further by striking another smaller flake from the edge if necessary (known as retouch). These early toolmakers may also have worked the stone they took the flake from (known as a core) to create chopper cores although there is some debate over whether these items were tools or just discarded cores The Mode 2 (eg Acheulean or Biface) toolmakers also used the Mode 1 flake tool method but supplemented it by also using wood or bone implements to pressure flake fragments away from stone cores to create the first true hand-axes. The use of a soft hammer made from wood or bone also resulted in more control over the shape of the finished tool. Unlike the earlier Mode 1 industries, the core was prized over the flakes that came from it. Another advance was that the Mode 2 tools were worked symmetrically and on both sides (hence the name Biface) indicating greater care in the production of the final tool.
Mode 3 technology emerged towards the end of Acheulean dominance and involved the Levallois technique. It is commonly associated with Neanderthal Mousterian industry. The long blades (rather than flakes) of the Upper Palaeolithic Mode 4 industries appeared during the Upper Palaeolithic[2]. The Aurignacian culture is a good example of mode 4 tool production. Mode 5 stone tools involve the production of Microliths. Examples include the Magdalenian culture.
Polished stone tools
An array of Neolithic artifacts, including bracelets, axe heads, chisels, and polishing tools.
Five types of tools found in Ecuador
Ground stone tools became important during the Neolithic period. These ground or polished implements are manufactured from larger-grained materials such as basalt, greenstone and some forms of rhyolite which are not suitable for flaking. The greenstone industry was important in the English Lake District, and is known as the Langdale axe industry. Ground stone implements included adzes, celts, and axes, which were manufactured using a labour-intensive, time-consuming method of repeated grinding against an abrasive stone, often using water as a lubricant. Because of their coarse surfaces, some ground stone tools were used for grinding plant foods and were polished not just by intentional shaping, but also by use. Manos are hand stones used in conjunction with metates for grinding corn or grain. Polishing increased the intrinsic mechanical strength of the axe. Polished stone axes were important for the widespread clearance of woods and forest during the Neolithic period, when crop and livestock farming developed on a large scale.
References
^ Barton, RNE, Stone Age Britain English Heritage/BT Batsford:London 1997 qtd in Butler, 2005. See also Wymer, JJ, The Lower Palaeolithic Occupation of Britain, Wessex Archaeology and English Heritage, 1999.
^ Lewin, R., Foley, R. A. 2004. Principles of Human Evolution (2nd Ed.) Blackwell Science, UK. ISBN: 0-632-04704-6
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