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JPN-5

Abstract

Based on grain size, two populations of pyroxenes and plagioclase exist in this sample; the first are the fine-grained, equant crystals of the glassy groundmass, and the second, the subhedral to anhedral phenocrysts visible in handsample. The inconsistently-shaped plagioclase grains are sometimes zoned and frequently contain inclusions of glass.

Note

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

Aoso

Administrative Notes

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

Copyright
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Publisher
None
PID
coccc:19530