Exam 3 Review Sheet
Chapter 7
1.
What are the
four agents of metamorphism? You should
be able to discuss where each agent might originate (for example, Heat can be
the result of burial).
2.
Discuss the role
each of the agents of metamorphism plays in transforming any rock into a
metamorphic rock.
3.
Know all SEVEN
types of metamorphism as defined in class and be able to describe which agents
of metamorphism are most important in each case and their size (low, medium or
high).
4.
What are the
factors that affect contact metamorphism?
5.
Know how to
interpret Figure 7.19 to determine metamorphic facies. What is a metamorphic facies? How might geologists use facies
to interpret the geologic history of a region?
6.
What are index
minerals? How can they be used to
determine metamorphic grade?
7.
What is a
metamorphic zone? How is it related to
metamorphic index minerals or facies?
8.
Discuss how a
foliation develops in a metamorphic rock.
What two things are necessary for a foliation to form?
9.
How does the
texture of a metamorphic rock record the influence of differential pressure?
10. Can lithostatic pressure
produce a foliation? Explain your
answer.
11. You should be able to identify BY DESCRIPTION the
metamorphic rocks on p. 176 and tell me if the rock is foliated or
non-foliated, its grade and a possible parent rock.
12. Draw and describe the types of metamorphism that
occur along the different types of tectonic boundary.
13. Know the rock cycle and be able to draw it as a
triangular diagram (as shown in class).
14. List two metallic and two non-metallic metamorphic
resources.
15. Describe the process that forms Cyprus-type and
Mississippi Valley-type mineral deposits.
Chapter 8
16. How does elastic rebound theory account for the
energy released during an earthquake?
17. Define focus and epicenter. For a particular earthquake, how are they
related?
18. Know about the motions of the various earthquake
waves.
19. What are some of the fundamental differences in body
and surface waves? Between P- and
S-waves? Between Rayleigh
and Love waves?
20. Be able to describe the basic operation of a modern
seismograph.
21. How many detectors are in our seismic vault? What types are they? How are they oriented (NE-SW? E-W? Vertical?).
22. If an earthquake occurs directly north (south, east,
west) of our seismic station, on which of our instruments would each wave type
be recorded?
23. What are the different magnitude scales? How are they different from each other? Which is the most accurate and reliable for
describing the true size of an earthquake?
24. Be able to determine the approximate amplitude and
energy release differences between earthquakes of different magnitudes.
25. What is seismic intensity? How is it measured? Is this a quantitative or qualitative
measure?
26. What factors determine the seismic intensity of a
particular event at a given location?
27. Review the slide show on earthquake prediction on the
class web site (link: http://itc.gsw.edu/faculty/speavy/spclass/EQ-Pred_files/frame.htm
) and answer the following questions:
28. Describe the various ways that earthquakes can be
destructive.
29. What can be done to minimize earthquake hazards?
30. The structure of the Earth’s interior was deduced
from measurements of seismic waves. Be
able to describe how, when and by whom each of the following discoveries were
made:
31. If the Earth were completely solid and homogenous
throughout, how would P- and S- waves behave as they traveled through the
planet? How do they actually behave?
32. Describe how velocities vary in the mantle. Why do they vary so much? (see p.216-217).