SIO10_hw4 - State and Mauna Loa on Hawaii What type of...

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SIO 10 – Winter 2011 Homework # 4 Due Friday, February 4 Lectures 9, 10, 11 Marshak Ch. 8-10 20 Points 1: (4 pts) a) What are the two main classes of metamorphic rocks? Give two examples of each class. (2 pts) b) In homework two, we asked about subduction zone features (question 2). What facies of metamorphic rock would you expect to find in a) a volcanic arc and b) an accretionary prism? To what temperature and pressure conditions do these facies correspond? (2 pts) (Hint: Marshak Box 8.1) 2: (4 pts) a) Give examples of 4 volcanoclastic deposits and briefly describe them. (2 pts) b) What is the difference between a pyroclastic flow and a lahar? (1 pt) c) Briefly explain how a volcanic eruption can affect global average temperature. (1 pt) 3) Compare and contrast the following two volcanoes: Mt. St. Helens in Washington
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Unformatted text preview: State and Mauna Loa on Hawaii. What type of volcano is each of these based on its shape? What is their eruptive style? What is the composition of the magma they erupt (viscosity, silica content)? In what geologic setting were the two volcanoes formed? (4 pts) 4) (5 pts) a) What are the five basic types of faults? (2 pts) b) Which type of fault is generally associated with each type of plate boundary? Sketch their sense of motion, and indicate the hanging wall and footwall. At which of these types of plate boundary is the most seismic energy released during an earthquake? (3 pts) 5) (3 pts) a) List the four seismic waves generated by an earthquake in order of relative velocity (fastest first). (2 pts) b) Which type of wave is likely to cause the most damage during an earthquake and why? (1 pt)...
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