Visually stunning and very steamy, Yellowstone’s Grand Prismatic Spring is one of many hydrothermal features the park owes to the massive supervolcano beneath it. | “Windows into the Earth,” Robert B. Smith and Lee J. Siegel
There's More Magma Under Yellowstone Than We Thought
Beneath the shallow magma chamber at Yellowstone lies a vast magma reservoir that's four times larger.
By Jim Sullivan
Nov 30, 2015 6:00 AMNov 12, 2019 5:06 AM
A cross section of the supervolcano beneath Yellowstone illustrates the previously known magma chamber and the deeper, much larger magma reservoir discovered through new imaging techniques.
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