Jumbo Dome, Interior Alaska: Whole-rock, major- and trace-element analyses
Jumbo Dome is a hornblende andesite dome of Pleistocene age located in the Healy Quadrangle of central Alaska, about 19 km northeast of Healy, Alaska. Jumbo Dome is approximately 1.6 km long, 1.3 km wide, and 500 m high and intrudes the Devonian Keevy Peak Formation basement (slate, quartz-sericite schist, graphitic …