Application of parabolic cracks in determining handedness in archaeological remains. The case study of the Axlor site (Bizkaia, Iberian Peninsula)

Abstract

Lithic artefacts are a potential source of information for the study of handedness in different human species. In flint flakes, a system of fractures is developed (parabolic cracks) around the point of percussion in connection with the cone of percussion and the conical fracture of the flint. The orientation of these fractures is linked to the direction of percussion, and therefore to the knapper's handedness. The archaeological remains from Levels III, IV, V and VI at Axlor (Bizkaia, Iberian Peninsula) are studied here in order to determine how well parabolic cracks are preserved in archaeological remains, and whether it is possible to study them if the remains are covered with a patina or damaged.