Cross-Scale Geometric Recurrence in Lithic Surfaces: An Observational Analysis of 105 Sites

This document presents an observational analysis of 105 lithic sites examining recurring geometric behaviours across material classes, spatial scales, and geographic locations. The analysis identifies consistent directional field organisation (~0° / ~30° / ~45°), cross-boundary continuity, and multi-scale recurrence. These features are documented without assigning causal mechanism and are structured to allow independent verification. The work defines a repeatable observational framework that can be applied to future specimens. Where these conditions are present, the same geometric relationships are observed. The protocol is scale-invariant, material-agnostic, and forward-compatible.