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5 points
Tectonics Map
Questions: Use complete sentences. Do not use personal pronouns (they, we, I).
1.
2.
3.
4.
A
B
C
D
5.
A
B
C
D
6.
A
B
C
D
7.
A
B
C
D
8.
A
B
C
D
Lab #18 Tectonics Map
INTRODUCTION:
In the early 1900's, Alfred Wegener noticed that Africa and South
America "fit" together. Structural, fossil and mineral evidence seemed to support Wegener's
Continental Drift Theory but it was not accepted by the scientific community. In the 1960's,
scientists began to realize that there might be a connection between continental drift,
earthquakes and volcanoes. When the ship The Glomar Challenger completed studies of the
ocean floor, scientists had a mechanism for parts of the earth's crust to move and thus related
earthquakes and volcanoes to their new theory, Plate Tectonics. The theory of Plate
Tectonics states that the earth's crust is broken into several pieces or plates, that are moving
around, breaking apart and colliding with other plates
PROCEDURE: Plan A
On a large map of the ocean floor, plot the earthquakes with an "x" and the volcanoes with a
triangle. Plot the 15 most recent earthquakes from the list found at:
http://www.usgs.gov
Plot the 15 most recent volcanoes from:
http://www.volcano.und.edu
Color the major mountain ranges from the map found at:
http://www.
Draw in the plate boundaries. These boundaries can be found on page 5 of your Earth
Science Reference Tables
Color the major mountain ranges in brown on your map. You may use a classroom relief
globe or map. Major mountain belts can also be found on the tectonic map on page 528 of
your textbook.
Place the boundaries of the plates of the earth on your map using crayons or colored pencils.
These boundaries can be found on page 5 of your Earth Science Reference. Differentiate
between convergent (coming together) and divergent (splitting apart) boundaries. Show plate
movement direction arrows.
PROCEDURE: Plan B
If the internet is unavailable, computers are down or this lab has to be made up at home, use
these chart in lieu of using current data from the internet. Plot the earthquakes with an "x"
and the volcanoes with a triangle ().
Earthquakes
Volcanoes
latitude
longitude
latitude
longitude
40oN
5oS
120oW
10oE
60oN
35oS
150oW
70oW
4oS
23oN
77oW
88oE
45oN
15oN
120oW
61oW
14oS
7oN
121oE
34oE
20oN
0o
105oW
75oW
44oN
30oS
74oW
70oW
40oN
40oN
122oW
30oE
45oN
13oN
10oE
85oW
30oN
55oN
60oE
160oE
23oN
35oN
125oE
30oE
3oS
40oN
37oE
145oE
35oN
46oN
140oE
12oE
10oS
41oN
120oE
14oE
28oN
61oN
75oE
150oW
5oS
15oN
105oE
35oE
47oS
50oN
68oW
170oW
30oS
60oN
70oW
30oW
QUESTIONS:
Write the answers to these questions on the back of your map. Use
complete sentences.
1.
Write a sentence summarizing the relationship between the location of most
earthquakes, volcanoes, mountain ranges and plate boundaries.
2.
How do the plate boundaries relate to ocean trenches and ridges?
3.
What general direction does most of North America appear to be moving?
4.
Where do most major earthquakes occur?
A)
at the mantle-core boundary
B)
in specific earthquake belts within the crust
C)
in the continental interiors
D)
randomly over the earth's surface
5.
Recent volcanic activity in different parts of the world supports the inference that
volcanoes are located mainly in
A)
the center of landscape regions
B)
the central regions of continents
C)
zones in late stages of erosion
D)
zones of crustal activity
6.
Which best describes a major characteristic of both volcanoes and earthquakes?
A)
They are located in the same geographic regions.
B)
They are centered at the poles.
C)
They are related to the formation of glaciers.
D)
They are restricted to the southern hemisphere.
7.
Mountain ranges are often found
A)
the center of landscape regions
B)
the central regions of continents
C)
zones in late stages of erosion
D)
zones of crustal activity
8.
Which model best indicates the overall direction of movement of the African landmass
relative to the position of South America during this time of continental drift?