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Yellowstone Caldera Inflating Faster (1 of 2)

Caption: Grand Prismatic Spring, Yellowstone National Park, captures the essence of Yellowstone's world-renowned geysers and hot springs that are fed by the enormous heat from its active volcanic system. This 60 meter-wide, boiling hot spring has an array of vivid colors produced by thermophile bacteria that thrive in hot water. This image relates to an article that appeared in the Nov. 9, 2007 issue of the journal Science, published by AAAS. The study, by Dr. Wu-Lung Chang and colleagues at University of Utah in Salt Lake City, UT, was titled "Accelerated Uplift and Magmatic Intrusion of the Yellowstone Caldera, 2004 to 2006."

Credit: Henry Holdsworth

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