Unit 3 – Dynamic Crust
Review
Miss Wojdan
2014-2015
1. Which mantle hot spot is located
directly below a mid-ocean ridge
plate boundary?
A. Yellowstone
B. Iceland
C. Canary Islands
D. Hawaii
1. Which mantle hot spot is located
directly below a mid-ocean ridge
plate boundary?
A. Yellowstone
B. Iceland
C. Canary Islands
D. Hawaii
2. The Explorer Ridge is the boundary
between the Explorer Plate and
which other plate?
A. North American
B. Pacific Plate
C. Juan de Fuca Plate
D. Gorda Plate
2. The Explorer Ridge is the boundary
between the Explorer Plate and
which other plate?
A. North American
B. Pacific Plate
C. Juan de Fuca Plate
D. Gorda Plate
3. Compared to the oceanic crust, the
continental crust is
A. Less dense and more felsic
B. Less dense and more mafic
C. More dense and more felsic
D. More dense and more mafic
3. Compared to the oceanic crust, the
continental crust is
A. Less dense and more felsic
B. Less dense and more mafic
C. More dense and more felsic
D. More dense and more mafic
4. The Aleutian Islands extend
westward from Southern Alaska to
form the northern boundary of the
Pacific Ocean. These volcanic islands
were formed by the nearby
A.
B.
C.
D.
Divergence of a continental plate
Divergence of an oceanic plate
Subduction of a continental plate
Subduction of an oceanic plate
4. The Aleutian Islands extend
westward from Southern Alaska to
form the northern boundary of the
Pacific Ocean. These volcanic islands
were formed by the nearby
A.
B.
C.
D.
Divergence of a continental plate
Divergence of an oceanic plate
Subduction of a continental plate
Subduction of an oceanic plate
5. The greatest earthquake hazard to
homes exists when they are built on
A.
B.
C.
D.
Hard igneous rock
Sedimentary rock
Coarse sediments
Silt and mud
5. The greatest earthquake hazard to
homes exists when they are built on
A.
B.
C.
D.
Hard igneous rock
Sedimentary rock
Coarse sediments
Silt and mud
6. Earth’s internal heat is the primary
source of energy that
A. Warms the lower troposphere
B. Melts glacial ice at lower latitudes
C. Moves the lithospheric plates
D. Pollutes groundwater with
radioactivity
6. Earth’s internal heat is the primary
source of energy that
A. Warms the lower troposphere
B. Melts glacial ice at lower latitudes
C. Moves the lithospheric plates
D. Pollutes groundwater with
radioactivity
7. P-Waves arrive at a seismic station at
2:33 p.m. The station is 2,200 km
away from the epicenter. What time
did the earthquake occur?
A. 02:26:40 p.m.
B. 02:28:40 p.m.
C. 02:30:10 p.m.
D. 02:37:20 p.m.
7. P-Waves arrive at a seismic station at
2:33 p.m. The station is 2,200 km
away from the epicenter. What time
did the earthquake occur?
A. 02:26:40 p.m.
B. 02:28:40 p.m.
C. 02:30:10 p.m.
D. 02:37:20 p.m.
8. The arrival time of the first earthquake Pwave at a seismograph station was 10:11:20
(hours: minutes: seconds). If the epicenter of
the earthquake is 8000 km away, what was
the approximate arrival time of the first Swave from this earthquake?
A. 10:02:00
B. 10:09:20
C. 10:20:40
D. 10:32:00
8. The arrival time of the first earthquake Pwave at a seismograph station was 10:11:20
(hours: minutes: seconds). If the epicenter of
the earthquake is 8000 km away, what was
the approximate arrival time of the first Swave from this earthquake?
A. 10:02:00
B. 10:09:20
C. 10:20:40
D. 10:32:00
9. The MOHO is a boundary located in
zone:
A.
B.
C.
D.
A
B
E
D
9. The MOHO is a boundary located in
zone:
A.
B.
C.
D.
A
B
E
D
10.What type of plate boundary is
shown?
A.
B.
C.
D.
Divergent
Convergent
Transform
Complex
10.What type of plate boundary is
shown?
A.
B.
C.
D.
Divergent
Convergent
Transform
Complex
11.The temperature of the asthenosphere
at the depth where melting first takes
place is
A.
B.
C.
D.
100 ⁰C
1,300 ⁰C
4,200 ⁰C
5,000 ⁰C
11.The temperature of the asthenosphere
at the depth where melting first takes
place is
A.
B.
C.
D.
100 ⁰C
1,300 ⁰C
4,200 ⁰C
5,000 ⁰C
12. Which part of this seismogram is used
to find the distance to the epicenter of the
earthquake?
A. P-Wave arrival time, only
B. S-Wave arrival time, only
C. Difference in arrival time of the P- and
S-Wave
D. Difference in height of the P- and S-Wave
12. Which part of this seismogram is used
to find the distance to the epicenter of the
earthquake?
A. P-Wave arrival time, only
B. S-Wave arrival time, only
C. Difference in arrival time of the P- and
S-Wave
D. Difference in height of the P- and S-Wave
13.The most recently formed bedrock is
found at location
A.
B.
C.
D.
A
B
C
D
13.The most recently formed bedrock is
found at location
A.
B.
C.
D.
A
B
C
D
14. Which block diagram best represents
the relative direction of plate motion at
the San Andreas Fault?
A.
B.
C.
D.
14. Which block diagram best represents
the relative direction of plate motion at
the San Andreas Fault?
A.
B.
C.
D.
15.Which letter best represents Earth’s
mantle?
A.
B.
C.
D.
Q
B
C
D
15.Which letter best represents Earth’s
mantle?
A.
B.
C.
D.
Q
B
C
D
16. The first S-wave arrived at a
seismograph station 11 minutes after an
earthquake occurred. How long after
the arrival of the first P-wave did this
first S-wave arrive?
A.
B.
C.
D.
3 minutes 15 seconds
4 minutes 55 seconds
6 minutes 05 seconds
9 minutes 00 seconds
16. The first S-wave arrived at a
seismograph station 11 minutes after an
earthquake occurred. How long after
the arrival of the first P-wave did this
first S-wave arrive?
A.
B.
C.
D.
3 minutes 15 seconds
4 minutes 55 seconds
6 minutes 05 seconds
9 minutes 00 seconds
17.At which plate boundary is one
lithospheric plate sliding under
another?
A. Nazca Plate and Antarctic Plate
B. Nazca Plate and Pacific Plate
C. Pacific Plate and Indian-Australian
D. Indian-Australian and Antarctic
Plate
17.At which plate boundary is one
lithospheric plate sliding under
another?
A. Nazca Plate and Antarctic Plate
B. Nazca Plate and Pacific Plate
C. Pacific Plate and Indian-Australian
D. Indian-Australian and Antarctic
Plate
18.Alternating parallel bands of normal
and reversed magnetic polarity are
found in the basaltic bedrock on
either side of the
A. Mid-Atlantic Ridge
B. Yellowstone Hot Spot
C. San Andreas Fault
D. Peru-Chile Trench
18.Alternating parallel bands of normal
and reversed magnetic polarity are
found in the basaltic bedrock on
either side of the
A. Mid-Atlantic Ridge
B. Yellowstone Hot Spot
C. San Andreas Fault
D. Peru-Chile Trench
19.Which combination of temperature and
pressure is inferred to occur within
Earth’s stiffer mantle?
A. 3,500 ⁰C and 0.4 million atmospheres
B. 3,500 ⁰C and 2.0 million atmospheres
C. 5,500 ⁰C and 0.4 million atmospheres
D. 5,500 ⁰C and 2.0 million atmospheres
19.Which combination of temperature and
pressure is inferred to occur within
Earth’s stiffer mantle?
A. 3,500 ⁰C and 0.4 million atmospheres
B. 3,500 ⁰C and 2.0 million atmospheres
C. 5,500 ⁰C and 0.4 million atmospheres
D. 5,500 ⁰C and 2.0 million atmospheres
20.Which part of the Earth’s interior is
inferred to have convection currents
that cause lithospheric plates to
move?
A. Crust
B. Asthenosphere
C. Outer Core
D. Inner Core
20.Which part of the Earth’s interior is
inferred to have convection currents
that cause lithospheric plates to
move?
A. Crust
B. Asthenosphere
C. Outer Core
D. Inner Core
21. An earthquake’s first P-wave arrives at a
seismic station at 12:00:00. This P-wave has
traveled 6,000 kilometers from the epicenter.
At what time will the first S-wave from the
same earthquake arrive at the seismic
station?
A. 11:52:20
B. 12:07:40
C. 12:09:20
D. 12:17:00
21. An earthquake’s first P-wave arrives at a
seismic station at 12:00:00. This P-wave has
traveled 6,000 kilometers from the epicenter.
At what time will the first S-wave from the
same earthquake arrive at the seismic
station?
A. 11:52:20
B. 12:07:40
C. 12:09:20
D. 12:17:00
21. An earthquake’s first P-wave arrives at a
seismic station at 12:00:00. This P-wave has
traveled 6,000 kilometers from the epicenter.
At what time will the first S-wave from the
same earthquake arrive at the seismic
station?
A. 11:52:20
B. 12:07:40
C. 12:09:20
D. 12:17:00
22.The seismogram recorded at Station A
would show the
A. Arrival of P-Waves, only
B. Earliest arrival time of P-Waves
C. Greatest difference in arrival times
between the P- and S-Waves
D. Arrival of S-Waves before the arrival of
P-Waves
22.The seismogram recorded at Station A
would show the
A. Arrival of P-Waves, only
B. Earliest arrival time of P-Waves
C. Greatest difference in arrival times
between the P- and S-Waves
D. Arrival of S-Waves before the arrival of
P-Waves
23. A seismic station is recording the
seismic waves produced by an
earthquake that occurred 4200
kilometers away. Approximately how
long after the arrival of the first P-wave
will the first S-wave arrive?
A.
B.
C.
D.
1 minute 05 seconds
5 minutes 50 seconds
7 minutes 20 seconds
13 minutes 10 seconds
23. A seismic station is recording the
seismic waves produced by an
earthquake that occurred 4200
kilometers away. Approximately how
long after the arrival of the first P-wave
will the first S-wave arrive?
A.
B.
C.
D.
1 minute 05 seconds
5 minutes 50 seconds
7 minutes 20 seconds
13 minutes 10 seconds
24.What are the most likely geologic ages of
volcanoes B and D?
A. B is 5 million years old and D is 12 million
years old
B. B is 2 million years old and D is 6 million
years old
C. B is 9 million years old and D is 9 million
years old
D. B is 10 million years old and D is 4 million
years old
24.What are the most likely geologic ages of
volcanoes B and D?
A. B is 5 million years old and D is 12 million
years old
B. B is 2 million years old and D is 6 million
years old
C. B is 9 million years old and D is 9 million
years old
D. B is 10 million years old and D is 4 million
years old