Ash-flow tuffs of the Galiuro Volcanics in the northern Galiuro Mountains, Pinal County, Arizona

Volcanic, Volcanology, Stratigraphy, Igneous Petrology, Geochemical Survey, Correlation, Locale, Holy Joe Mbr - Galiuro Volcanics - Miocene/Oligocene - mid-Tertiary volcanic assemblage, Aravaipa Mbr, tuff and conglomerate of Bear Springs Canyon, Hells Half Acre Tuff Mbr (Galiuro Mts.),