Figure 1
From: Neandertal fire-making technology inferred from microwear analysis
Images of mineral use-wear traces on archaeological bifaces CPN E13-748 (top) and CPN E18-30 (bottom) from Chez-Pinaud/Jonzac (Charente-Maritime). The white lines demarcate the zone of mineral use-wear traces comparable to pyrite. The arrows indicate the orientations of associated striations. The star on Side A of CPN E13-748 indicates a zone of percussion containing numerous C-shaped percussion marks that open distally (a) in good agreement with the striations (b). On Side B, the star encompasses a zone of percussion containing multiple linear gouges (c) indicating this surface was used for retouching/flintknapping. A low-magnification image of the surface of CPN E18-30 (d) shows the extent of ridge rounding. The arrows in this image indicate two small (difficult to see) distally opening percussion marks. (d) High-magnification image of planed flake scar ridge with well-developed mineral polish and striations. (f) High-magnification image of well-developed mineral polish and intersecting striations of different directionalities, possibly indicating more than one use episode.
