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This U.S. Geological Survey Professional Paper is aimed at constructing a volcanic history of the Yellowstone Plateau region, interpreting important volcanic mechanisms, and seeking clues to deeper-seated processes that gave rise to the volcanic activity. Research for this paper spanned four decades and involved areal geologic mapping and the delineation of volcanic stratigraphy and significant structural relations. It includes text, maps, photographs, diagrams, and chemical analysis data.
