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Title: LOCATIONS OF VOLCANOES IN THE UNITED STATES
Caption: B. Western United States. (From Wright, T. L., and Pierson, T. C. 1992. U.S. Geological Survey Circular 1073)
Keywords: volcanoes, volcanism, volcanic eruptions, plate tectonics, tectonic plates, intraplate volcanism, mantle plumes, hot spots, magmas, lavas, decompression melting, convergent boundary, convergent boundaries, subduction zones, trenches, volcanic island arcs, continental volcanic arcs, composite cones, stratovolcanoes, calderas