Problem 1
Match each of the following volcanic landforms with the principle zone of volcanism (convergent plate boundaries, divergent plate boundaries, or intraplate volcanism) with which it is associated: a. Crater Lake e. Yellowstone b. Hawaii's Kilauea f. Mount Pelée c. Mount St. Helens g. Deccan Plateau d. East African Rift h. Fujiyama
Problem 3
Divergent boundaries, such as the Mid-Atlantic Ridge, are characterized by outpourings of basaltic lava. Answer the following questions about divergent boundaries and their associated lavas: a. What is the source of these lavas? b. What causes the source rocks to melt? c. Describe a divergent boundary that would generate lavas with a large range of compositions.
Problem 5
Assume that you want to monitor a volcano that has erupted several times in the recent past but appears to be quiet now. How might you determine if magma were actually moving through the crust beneath the volcano? Suggest at least two phenomena you would observe or measure.
Problem 7
Imagine that you are a geologist charged with the task of choosing three sites (anywhere in the world) where state-of-the-art volcano-monitoring systems will be deployed. What criteria would you use to select these sites? List some potential choices and your reasons for considering them.
Problem 8
Explain why an eruption of Mount Rainier, similar to the one that occurred at Mount St. Helens in 1980 , would be considerably more destructive.
