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YELLOWSTONE NATIONAL PARK — Scientists at the Yellowstone Volcano Observatory (YVO) are studying the habits of Black Diamond Pool in Biscuit Basin. The YVO scientists believed that the still-closed area where a hydrothermal explosion occurred last summer was still active after the explosion, but data and evidence could not prove it.

This week’s Caldera Chronicles is written by Mara H. Reed, Samantha R. Hilburn and Margery B. Price, all physical science technicians in the Geology Program at Yellowstone National Park (YNP). They explain that two erup

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