Study Says 57% of Water-Accessible Arabia Lacked Tool Stone for Early Humans
Updated
Updated · arkeonews · Oct 29
Study Says 57% of Water-Accessible Arabia Lacked Tool Stone for Early Humans
3 articles · Updated · arkeonews · Oct 29
Summary
A Nature study argues early human settlement in Arabia was constrained not just by freshwater but by access to toolmaking stone, meaning water-only models likely overstated habitable terrain.
A 35-day, 1,500-km survey across the Empty Quarter found ancient lake deposits at 55 of 125 sites but no stone tools, even where ground visibility exceeded 95%.
Researchers found some lake basins sat more than 200 km from suitable rock sources, and about 800 km of the desert interior lacked usable stone such as flint, chert or quartzite.
Their combined water-and-stone model showed 57% of water-accessible Arabia lay on geology unsuitable for toolmaking and improved site prediction from 0.695 to 0.768 against 301 to 363 known sites.
The findings recast wetter prehistoric Arabia as a patchwork of viable settlement zones rather than a continuous migration corridor, with possible implications for dispersal models beyond the peninsula.