regionally exposed ash-flow tuffs, from most other tuffs of the central Chiricahua Mountains. In addition ... 6) members of the Rhyolite Canyon Tuff form a geochemically distinct subset of the Rhyolite Canyon Tuff, whereas the upper ( RU in fig.
|Title||:||Geochemistry and geochronology of Middle Tertiary Volcanic Rocks of the Central Chiricahua Mountains, Southeast Arizona|
|Author||:||Edward A. Du Bray, Lawrence W. Snee, John S. Pallister|
|Publisher||:||Geological Survey (USGS) - 2005|