Devils Tower National Monument

An outcrop of Catalina gneiss clearly displaying foliation (banded layers or recrystallized minerals formed by metamorphic processes, not sedimentary layering); two saguaros are in the foreground (Harris, 1987; Davis, 1987).

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The URL is: https://gotbooks.miracosta.edu/gonp/sagu/html2/sagu0045.html
Last modified: 10/29/2010