S2-07EN_PDF_Sylvain Griselin, Caroline Hamon and Guy Boulay — Manufacture and use of Montmorencian prismatic tools: the case of 62 rue Henry-Farman, Paris (15th arrondissement)

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S2-07EN_PDF_Sylvain Griselin, Caroline Hamon and Guy Boulay — Manufacture and use of Montmorencian prismatic tools: the case of 62 rue Henry-Farman, Paris (15th arrondissement)

The Mesolithic site of 62 rue Henry-Farman in Paris’ 15th arrondissement, excavated by the INRAP in 2008, has produced a series of prismatic tools whose mode of production, maintenance and use are investigated here. These macrolithic tools are known from numerous Middle Mesolithic sites in and around the Île-de-France and occasionally in the rest of the Paris Basin. At the Paris site, these quartzite tools are generally broken, but can measure up to 10 cm in length when whole. They have triangular and / or trapezoidal cross-sections with a flat un-retouched face characteristic of Montmorencian tools. The shaping of these pieces is relatively simple as it aims to shape-out the sides and the dorsal face, forming the tool’s lateral longitudinal ridges. Different degrees of repair are observable on the tools, indicating a fairly long period of use. Use-wear referable to contact with a mineral material is visible along the longitudinal ridges of both the flat and opposing faces, while the prominences of the sides show a distinct undetermined type of wear. The ridges seem to constitute the main working surfaces of these objects and, despite some wear on the extremities of several examples, the overall use-wear distribution refutes their supposed main use as ‘picks’. Further functional hypotheses may be formulated and several preliminary tests have been carried out to evaluate them, including the use of these tools as retouchers to fracture bladelets using the microburin technique. This hypothesis is discussed in the light of use-wear observed on archaeological and experimental tools.