The roots of ash flow calderas in western North America: Windows into the tops of granitic batholiths

Volcanology, Volcanic, Granitoid, Megabreccia, Structure, Faulting, Mineralization, Porphyry Copper, Hydrothermal System, Alteration, Rhyolite Canyon Tuff(ash flow tuff of Rhyolite Canyon)(Rhyolite Canyon Fm) - [Turkey Creek eruptive complex and pluton][rocks of the Turkey Creek Caldera] - Oligocene,