Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 28 January 1983:
Vol. 219. no. 4583, pp. 361 - 366
DOI: 10.1126/science.219.4583.361
Prev | Table of Contents | Next

Articles

Obsidian Dating and East African Archeology

Joseph W. Michels 1, Ignatius S. T. Tsong 2, and Charles M. Nelson 3

1 Professor of anthropology, Pennsylvania State University, University Park 16802
2 Professor of physics, Arizona State University, Tempe 85281
3 Associate professor of anthropology, University of Massachusetts, Boston 02125

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.

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)