In lithic technology, a biface bevel refers to the intentional creation of an angled edge on a bifacially flaked tool, produced by alternating flake removals on opposite faces. This technique results in a slanted cutting edge rather than a straight, perpendicular one, and is often diagnostic of certain projectile point traditions.
🌍 Definition
- Biface Bevel: An angled edge formed when flakes are removed from both faces of a biface in a way that produces a sloping, oblique cutting surface.
- Appearance: The edge looks twisted or skewed, with flake scars running obliquely across the blade.
- Contrast: Different from simple bifacial sharpening, which produces a straight edge; beveling intentionally alters the edge angle.
🔑 Archaeological Contexts
- Dalton Points (Late Paleoindian/Early Archaic, North America):
- Often exhibit beveled blades, created by resharpening in a consistent direction.
- This beveling produces a twisted or asymmetrical blade form.
- Resharpening Strategy:
- Beveling extends tool life by maintaining sharpness while gradually altering morphology.
- Indicates repeated use and maintenance of bifaces.
- Diagnostic Value:
- Archaeologists use beveling patterns to identify cultural traditions and resharpening practices.
📚 Importance in Anthropology
- Technological Insight: Beveled bifaces show intentional design choices in edge maintenance and tool longevity.
- Cultural Identity: Specific beveling styles (e.g., Dalton bevels) are tied to particular archaeological cultures.
- Comparative Value: Highlights differences between beveled, serrated, and straight-edged bifaces.
- Material Culture: Beveling reflects both functional adaptation and stylistic identity in tool production.
In short: A biface bevel is the angled edge created by alternating flake removals on both faces of a biface, often diagnostic of resharpening traditions like those seen in Dalton points.