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BB9

Abstract

This medium-grained allotriomorphic diorite is dominated by plagioclase, much of which is concentrically zoned and larger in size than most other phases in the sample. Clusters of the ferromagnesian phases appear to be pseudomorphing a previous, rectangular, phenocrystic phase.

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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:19372