Bimodal volcanism along the eastern margin of the Basin and Range province, western Arizona [abs.]

Volcanology, Igneous Petrology, Volcanic, Geochemistry, Extensional Tectonics, Miocene, Pliocene, Quaternary, Pleistocene, Holocene, Hickey Fm, [Fortification Basalt Mbr][Fortification Hill basalt][basalt of Fortification Hill] - Muddy Creek Fm, Peach Springs Tuff,