GIST SET II ESC 1000 16 Week
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Dec 6, 2023
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GIST SET II ESC 1000- 16 Week
Chapter7
1.
Examine the accompanying photo and complete the following:
A.
What type of volcano is it? What features helped you classify it as such?
Composite. It has extremely steep slopes, and it is covered in snow.
B.
What is the eruptive style of such volcanoes? Describe the likely composition and viscosity of the magma associated with it.
The eruption style of composite volcanoes is very explosive. It contains felsic magma, which typically means it has a high viscosity.
C.
Which type of plate boundary is likely associated with such a volcano?
Convergent plate boundary.
D.
Name a city that is vulnerable to the effects of such a volcano.
Naples, Italy.
4. Match each of these volcanoes or volcanic regions with one of the three zones of volcanism (convergent, divergent or intraplate boundaries)
A.
Crater Lake Convergent
B. Kilauea Intraplate
C.
MT ST Helens convergent
D.
East African Rift Divergent
E.
Yellowstone Intraplate
F.
MT Pelee Convergent
G.
Deccan Traps Intraplate
H.
Fujiyama Intraplate
7.
Photo (D) shows an igneous structure (dark color) that has intruded the surrounding sedimentary rock.
A.
What is the name given to this type of igneous structure? Extrusive???
B.
The light bands above and below the structure are metamorphic rock. Identify the type of
metamorphism associated with the intrusion. Contact metamorphism
Chapter 6
2.
Search for a map showing the largest earthquakes since 1900 and consult a plate tectonic
map. What plate boundaries are most often associated with the largest and most destructive earthquakes?
Subduction zones, convergent plate boundaries.
3.
A.
Which seismic wave arrives at the seismic station first?
P waves
B.
What is the time interval between the first S and P waves?
2 minitutes.
C.
What type of seismic wave has the highest ampliture?
Surface waves.
5.
A. What type of dip-slip fault is shown in the diagram below?
Reverse fault
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C.
What type of dip-slip fault is shown in the diagram below?
Normal fault
Chapter 9
2. Assuming the average speed of sound in seawater is 1500m/s, determine the depth of the seafloor if a sound wave emitted by an echosounder takes 6 seconds to strike the bottom and return to the echosounder.
4500 meters
4.
A. Which letter corresponds with the following: Slope, Shelf, Rise?
Slope: D
Shelf: A
Rise: C
B Consult a map of the seafloor around Florida: How does the size of the state relate to the continental shelf surrounding it?
The size of the continental shelf is much larger than the peninsula.
C Why aren’t there any deep ocean trenches around Florida?
Because usually the deep ocean trenches are usually found near the convergent plate boundaries which Florida does not have any near it.
Chapter 10
5.
A. What is the name of the hard-stabilization structures in the photo?
Groin
B Which way is the longshore current moving in the diagram above?
Downwards
6.
You are playing catch in the surfzone for an hour and discover you have been moved down the beach about 50 yards. How would you explain to your friend your movement along the shoreline?
The longshore current pushed you in the angle it was heading in.
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