Hydration rind dates rhyolite flows

I. Friedman

doi:10.1126/science.159.3817.878

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Hydration rind dates rhyolite flows

I. Friedman

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Abstract

Hydration of obsidian has been used to date rhyolite flows, containing obsidian or porphyritic glass, at Glass Mountain (Medicine Lake Highlands) and Mono Lake, California. The method is simple and rapid and can be used to date flows that erupted between 200 and approximately 200,000 years ago.

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Source-reported bounding extent: 37.89091785569592° to 38.07304854451809° latitude; -119.19821042260747° to -118.7895832174465° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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I. Friedman. 1968. Hydration rind dates rhyolite flows. https://doi.org/10.1126/science.159.3817.878

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