FACTS AND FICTION ABOUT VOLCANOES: What is a volcano? -- Mythology and early speculation on volcanoes -- Volcanology becomes a science -- Classification of volcanoes -- What comes out of a volcano -- Cones, craters, and calderas -- TYPES OF VOLCANIC ERUPTIONS: The pelean type of volcanic eruption -- The vulcanian type of volcanic eruption -- The strombolian type of volcanic eruption -- The hawaiian type of volcanic eruption -- The icelandic type of volcanic eruption -- THEORY, CYCLES, UTILIZATION, AND ENVIRONMENTAL: Effects of volcanoes -- Volcanic cycles -- Birth of new volcanoes -- Man's use of geothermal energy -- Distribution, current activity, and geologic relationships of volcanoes, island arcs, and mountains -- Continental drift, plate tectonics, and volcanism -- Intensity and energy of volcanic eruptions -- Volcanoes and the environment -- Volcanoes of the cascade range, northwest United States.
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