Exam (elaborations)

University of Ottawa: GEO 1111 Quizzes 1-4 Answered Latest Fall 2024/2025.

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GEO 1111 (GEO1111)

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University Of Ottawa (U Of O )

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Uploaded on October 15, 2024
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Written in 2024/2025
Type Exam (elaborations)
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geo 1111 quiz 1
geo 1111 quiz 2
geo 1111 quiz 4
geo 1111 quiz 3
introduction to earth systems geo1111
geo 1111 geology university of ottawa

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Short Answer Answer
Quiz 1: Intro, Structure of the Earth, Continental Drift, Plate Tectonics

Version 1
1. Study the images below, showing the distribution of earthquakes,
volcanoes, and bathymetry.

a. What type of plate boundary is represented?
Convergent
b. Briefly explain your answer using the evidence/data in the
images
It is convergent since all volcanic arcs are on the one side while the
boundary is on the other. Convergent plate boundary occurs either
with ocean-ocean or ocean-continent, which by these images, it is an
ocean-continent. The red dots (on the image that measures
earthquakes) show that the west coast is the tectonic plates dive back
into the mantle--where earthquakes occur more often/strongest. This
is a major indicator for convergent plates, as convergent plates are
moving towards each other, while the other two types are either
moving away (divergent) or sideways (transform).
2. At a convergent boundary where subduction occurs, only a continental
plate can be the overriding (non-subducting) plate.
a. True

, b. False
3. Select all statements that are correct:
a. A tectonic plate boundary is always a "continental active margin"
b. Earthquakes occur at active continental margins
c. A tectonic plate can be made of both continental and oceanic
lithosphere
d. Earthquakes only occur at tectonic plate boundaries
4. Match the solid Earth layers to their chemical properties (chemistry)
_4_ Core 1. Granite
_2_ Oceanic crust 2. Basalt
_3_ Mantle 3. Peridotite
_1_ Continental crust 4. Iron-nickel metal alloy
5. Gold
6. Oxygen
5. A geoscientist discovers coal in a modern-day cold, snowy location.
What might they conclude? Select all that apply.
a. The area was once at a different latitude on the globe
b. The area was once covered with an ocean
c. Past climate must have been such that coal swamps could form at high
latitudes
d. The area was once covered with swamps or jungles
6. Study the following cartoon depicting a transform boundary at the
mid-ocean ridge. The red lines represent the mid-ocean ridge segments.
A transform fault connects the two mid-ocean ridge segments. What is
the motion on the transform fault?

a. transform no arrows 2

, b. transform no arrows 1

7. The tectonic plates are made of crust and mantle material.
a. True
b. False
8. The mantle is the most voluminous layer of the Earth
a. True
b. False
9. Pressure increases with depth inside the Earth because of the increasing
weight of the overlying material.
a. True
b. False
10. Match the following forces driving plate tectonics to the correct
description
_1_ Slab pull 1. Once oceanic lithosphere starts to sink back into
_2_ Ridge push the mantle, it drags the rest of the plate with it
2. The mid-oceanic ridge is buoyant and sits higher
than the rest of the oceanic lithosphere. Gravity
causes the elevated lithosphere at the ridge to push
on the lithosphere away from it.

, 3. Hot material comes up through mantle upwelling
and cold material sinks through downwelling
11. How do earthquakes and the seismic waves they produce help us map
the internal structure of the Earth?
a. Seismic waves change the density of the materials they travel through
b. Seismic waves travel at different speeds in materials of different density
c. Earthquakes cannot help us map the structure of the Earth
d. Earthquakes create deep fractures that allow us to see inside the Earth
12. Study the following cross section, from point A to point B.

Select the corresponding topographic map.

a.

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