The two largest features on this simplified geologic map are the great Idaho batholith (dark pink), a huge emplacement of plutonic rock of Mesozoic age, and the swath of lava beds along the west and across the south that marks the path of the Yellowstone hotspot. The hotspot first arose...
The Geologic history of the Caribbean-Cocos plate boundary with special reference to the Nicoya Ophiolite Complex (Costa Rica) and Deep Sea Drilling Project results (legs 67 and 84 off Guatemala): a synthesis. Tectonophysics, 108, 1-32.