Excerpt from: Wood and Kienle, 1990, Volcanoes of North America: United States and Canada: Cambridge University Press, 354p., Contribution by Charles A. Wood [Return to America's Volcanic Past - States and Regions ] [Return to America's Volcanic Past - National Parks and Monuments ] [Return to Visit A Volcano Menu ] America's Volcanic Past - Appalachian Mountains View the Geologic Time Scale Learn More About Plate Tectonics and the "Ring of Fire" Select VOLCANIC HIGHLIGHTS and FEATURES: Geologic Foundation: 1 The graduated cylinder is used for measuring volumes (amounts) of liquids.
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Plate Tectonics and the "Ring of Fire" Select VOLCANIC HIGHLIGHTS and FEATURES