Lab_3 Tetonic Plates
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Towson University *
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Course
101
Subject
Geology
Date
Dec 6, 2023
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docx
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Uploaded by GrandBraveryDinosaur15
Lab Activity_ Tectonic Plate Movement
Figure 1
Black smokers, shown in Figure 2 of the oceanic ridge, form when hot water
(approximately 350
o
C) containing dissolved metals flows onto the ocean floor
through the cooling and crystallizing lava and volcanic rock at the oceanic ridge.
Sulfide minerals precipitate from the hot water forming chimney-like masses
(photograph on right). A black smoker is a deep-sea hydrothermal vent.
1.
Read the description of the picture (figure 2) above, and answer: Is line 1 or 2
approximately parallel to the magnetic strips that form along oceanic-ridges
when new oceanic crust forms at spreading centers?
Line 1 is approximately parallel to the magnetic strips that form
along oceanic-ridges when new oceanic crust forms at spreading
centers
2.
An oceanic ridge is a
divergent plate
boundary. (1pt)
3.
Oceanic lithosphere is subducted under continental lithosphere to form a(n)
Ocean trench,
as showing in figure 3 below
.
1
Figure 1
2
1
Figure 2
4.
Figure 3 (picture above) is an example of
Convergent
boundary.
5.
Oceanic lithosphere is subducted under oceanic lithosphere to form a(n)
Ocean trench,
as shown in Figure 4. (1 point)
6.
Continental lithosphere is subducted under continental lithosphere to form
a(n)
High mountain belts and plateaus ,
as shown in Figure 5(picture
below).
7.
This is how the
Himalayan and Tibetan
mountains formed.
8.
Pick one: Figure 5 (below) shows a
DIVERGENT/(CONVERGENT)
boundary.
Figure 4
9.
In each of the above tectonic environments with mountains, the mountain
roots or cores are composed of
Igneous
rocks due to melting and
crystallization of magmas and
Metamorphic
rocks due to the increase in
heat and pressure.
2
Figure 3
10.Transform faults in oceanic crusts are located
perpendicular at the axis of
the oceanic ridges
, in relation to the oceanic ridges .
Q 14-17
Look at the picture(figure 6) below and label on this by answering the
questions.
Figure 5
11.Locate three examples of oceanic ridges on figure 6(above) and label them
OR
.
12.Label (VA)
two locations on Figure 6 where
volcanic arcs
are found.
13.Label (IA) two locations on Figure 6 where
island arcs
are found.
14.Label (CC) two location on Figure 6 where
continent-continent collision
zones
are found.
3
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