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CM4

Abstract

The vesicles in this microporphyritic vesicular basalt are substantially smaller than the other Carr Mountain samples, though composition remains similar. More calcite permeates the groundmass, in which plagioclase microlites are visible. Unaltered augite and olivine microphenocrysts are observed. An isotropic zeolite, presumably analcite, is seen infilling several vesicles.

Note

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

Carr Mountain

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:19466