Articles

Obsidian Dating and East African Archeology

Science  28 Jan 1983:
Vol. 219, Issue 4583, pp. 361-366
DOI: 10.1126/science.219.4583.361

Abstract

New experimental procedures have made it possible to establish specific hydration rates for the numerous compositional types of obsidian to be found at archeological sites in Kenya. Two rates are applied to artifacts from the Prospect Farm site, revealing a history of occupation extending back 120,000 years.

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