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Abstract

The glassy groundmass contains small plagiocase and clinopyroxene crystals, both of which are found as microphenocrysts. Plagioclase grains are variable in size and subhedral in shape. Clinopyroxene phenocrysts are substaniatlly larger, often due to the formation of glomeroporphyroclasts.

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The author has given permission for this work to be deposited in the Digital Archive of Colorado College.

Administrative Notes

The author has given permission for this work to be deposited in the Digital Archive of Colorado College.

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Publisher
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PID
coccc:19474