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A New Obsidian Hydration Rate for Certain Obsidians in the American Southwest

Published online by Cambridge University Press:  20 January 2017

Frank J. Findlow ,
Victoria C. Bennett ,
Jonathon E. Ericson  and
Suzanne P. De Atley
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Abstract

A new hydration rate is presented for the Government Mountain-Sitgreaves Peak obsidian source in Arizona. It is based on an analysis of hydration measurements from a series of independently dated obsidian artifacts from that source. Since obsidian obtained from Government Mountain-Sitgreaves Peak was widely traded in the prehistoric Southwest, the new hydration rate should provide archaeologists working in many parts of the Southwest with a reliable and inexpensive absolute dating technique.

Type
Reports
Information
American Antiquity , Volume 40 , Issue 3 , July 1975 , pp. 344 - 348
Copyright
Copyright © The Society for American Archaeology 1975

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