1. Volcanoes are generally not preserved in the geologic rock record as they are usually eroded away. However, the various materials erupted from volcanoes are often found preserved in the rock record. From what you have learned about the different types of volcanoes, how could you infer what type of volcano erupted in a given area based on the type of volcanic deposits now found as layers of rock? Give specific examples, and briefly discuss how some materials may be linked to different types of volcanoes.
2. Discuss volcanic hazards. Although commonly thought to be associated with most volcanic eruptions (by the general public), lava is rarely responsible for the loss of life. Which hazards would tend to be more deadly? Finally, indicate and discuss those hazards that are a direct result of a volcanic eruption as well as those hazards that are indirectly linked. (Hint: think of “indirectly associated” hazards as “side effects.”)
3. Volcano A erupts near the Arctic Circle and did so much like Mt. St. Helens, and Volcano B erupts near the Tropic of Capricorn and did so much like Mt. Vesuvius. If both volcanoes were of identical size in terms of ejecta and eruptive force, which would be more detrimental to the environment? The climate? Explain why.