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Estimating a Hydration Rate for Chimaltenango Obsidian

Luis Hurtado de Mendoza
American Antiquity
Vol. 46, No. 1 (Jan., 1981), pp. 159-162
DOI: 10.2307/279995
Stable URL: http://www.jstor.org/stable/279995
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Estimating a Hydration Rate for Chimaltenango Obsidian
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Abstract

Ninety-six percent of the obsidians in the valley of Guatemala originate in either the El Chayal or the Chimaltenango source systems. To an established hydration rate for El Chayal obsidian, one for Chimaltenango is added, thus expanding chronometric control to most of the central highlands of Guatemala.

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