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Volcanology
The branch of geology that deals with volcanism and the processes involved in magma flow and eruption through a vent in the earth's surface.
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Yellowstone Volcano Observatory (YVO) [More info]
Homepage of the Yellowstone Volcano Observatory with links to information about the observatory at Yellowstone National Park, volcanic history, photo gallery, monitoring data, publications and products, and Frequently Asked Questions (FAQs).
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