Hot Spot Theories
Two Hotspot TheoriesMOLTEN ROCK, or magma, rises in convection cells, like water boiling in a pot. The left side of this illustration shows the traditional view of a hotspot as a plume of magma rising from the earth's core. The right side shows another theory that the Yellowstone hotspot originates at a much shallower depth.
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Did You Know?
At peak summer levels, 3,500 employees work for Yellowstone National Park concessioners and about 800 work for the National Park Service.