Intro to Structural Geology Exam I

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GEOL 1330,

- Dr. Lapen

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Exam I

February 20, 2012

Multiple Choice (1 point each)
Questions 1-6 refer to the figure below:

#2

#3

#4

1) What type of plate boundary is depicted?
a)
b)
c)
d)
e)

convergent subduction transform divergent volcanic

2) What component of the plate boundary is represented here?
a)
b)
c)
d)
e)

continental crust melting oceanic crust trench volcanic arc

3) What component of the plate boundary is represented here?
a)
b)
c)
d)
e)

continental crust melting oceanic crust trench volcanic arc

4) Magmatism (melting) at this plate boundary is associated with __________.
a)
b)
c)
d)
e)

decrease in pressure addition of water increase in pressure increase in temperature none of the above

5) The volcanoes associated with this plate boundary generally erupt ________ magmas.
a)
b)
c)
d)

mafic intermediate low viscosity ultramafic 6) Which of the following was not a piece of evidence Wegner used to support continental drift?
a)
b)
c)
d)
e)

paleoclimate data geometric fit of continents fossil distributions geologic matches none of the above

7) What is the thickness of Oceanic Crust:
a) 20-70 km

b) 600-660 km

c) 3-10 km

d) 100-200 km

e) 1200 km

8) Continental Crust is ________ than Oceanic Crust:
a)
b)
c)
d)
e)

Thicker
Less dense
More felsic
All of the above
None of the above

9) Heat and pressure create what type of rocks:
a) Sedimentary
b) Metamorphic
c) Igneous
10) Sedimentary rocks are formed by the lithification of sediments.
a) True
b) False
11) The fundamental components of the theory of plate tectonics state that:
a) The outermost shell of the earth consists of a rigid lithosphere composed of the crust and upper mantle b) The lithosphere is broken into a series of large plates that move