A systematic examination of volcanic phenomena. The course examines the types of volcanic eruptions, the generation and emplacement of magma, the products of volcanic activity, the impact of volcanism on humans and the environment, the monitoring and forecasting of volcanic events and planetary volcanism. Case studies of individual volcanoes and volcanic systems are used to illustrate the principles of volcanology. Prerequisite: GEOL 109 or GEOL 110 . Spring (Alternate years) (Group II)