Would the yellowstone hot spot form anything similar should it 'solidify', I wonder.
Yes, it could, but the Yellowstone hot spot is probably a mantle plume, with an active magma supply. Plutons are more like "bubbles" of magma; once cut off from the magma, it can cool into granite.
12 posted on 02/03/2004 8:52:29 AM PST by cogitator