GEOL 1001 Chapter 7
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University of Minnesota-Twin Cities *
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Course
1001
Subject
Geology
Date
Apr 3, 2024
Type
Pages
4
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GEOL 1001 Chapter 7
Study online at https://quizlet.com/_96kix3
1.
Sedimentary environments on land differ because of variations in
A. All of these choices are correct.
B. amount of water.
C. local geology.
D. topography.
A
2.
Which of the following does NOT help define layers in some sedimentary rocks?
A. a change in mineral composition
B. a change in grain size
C. a change in color
D. a sharp contact between two rock types
E. All of these are ways that can define layers in sedi-
mentary rocks.
E
3.
Which of the following units was most likely deposited along an ancient mountain front?
A. unit 5
B. unit 2
C. unit 4
D. unit 1
E. unit 3
D
4.
Which of the following environments is NOT a setting in which limestone forms?
A. coral reefs
B. deposition of calcite near springs
C. some lakes
D. accumulation of the remains of microscopic organ-
isms
E. All of these are environments in which limestone forms.
E
5.
Which of the following characteristics are NOT used to classify and name clastic sediments?
A. the size of the clasts.
B. The amount of sorting of clasts.
C. The shape of the clasts.
D
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GEOL 1001 Chapter 7
Study online at https://quizlet.com/_96kix3
D. The climate in which the clasts are produced.
E. All of these are used.
6.
Which of the following can we understand by studying sedimentary rocks?
A. How environments shifted in location through time.
B. Past changes in climate.
C. Past events, such as landslides and earthquakes.
D Migration of deserts and advances of the sea.
E. All of these choices are correct.
E
7.
Which of the following is characteristic of a transgres-
sion?
A. The seas move out, uncovering more land.
B. Sand dunes and river sediments can be deposited over marine deposits.
C. Marine sedimentary facies move toward the land.
D. All of these choices are correct.
C
8.
This sandstone includes shells of marine creatures that live in shallow water. What is the most likely envi-
ronment in which it formed?
A. sand dunes
B. beach next to a sea
C. river
D. deep-water turbidity currents
B
9.
The typical large clasts found in breccia indicate that the energy levels of the transporting medium were
A. high B. low C. varying between medium and low
A
10.
What typically happens to the size, shape, and sorting of clasts as they are transported from steep moun-
tains toward more gentle settings?
A. The size of the clasts increases.
B. The clasts become more rounded.
C. The sediment becomes more poorly sorted.
D. All of these choices are correct.
B
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GEOL 1001 Chapter 7
Study online at https://quizlet.com/_96kix3
11.
Which way was the current (either wind or water) moving during deposition of this section of rocks?
A. There is no way to tell.
B. toward the camera
C. away from the camera
D. toward the left
E. toward the right
E
12.
Which of the following environments would likely have large clasts?
A. a weak current
B. steep slopes
C. dunes formed by wind
D. All of these choices are correct.
B
13.
The two main processes by which sediment is pro-
duced are
A. physical and chemical weathering.
B. transportation and deposition.
C. subduction and melting.
A
14.
Fluvial refers to
A. the hydrological cycle on land.
B. the processes and sediment of streams and rivers.
C. the movement of fluids underground.
B
15.
Which of the following is a common characteristic of carbonate rocks?
A. They commonly have a dissolved appearance.
B. They are commonly black and shiny.
C. They are commonly reddish.
D. They do not form cliffs.
E. All of these choices are correct.
A
16.
Carbonate rocks exposed at the surface in wet envi-
ronments will
A. not react chemically to water.
B. appear smooth and unaltered.
C. dissolve and weather readily.
C
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GEOL 1001 Chapter 7
Study online at https://quizlet.com/_96kix3
17.
Which environment is least likely to deposit a breccia?
A. meandering river
B. steep mountain front
C. debris flow
D. glacier
E. landslide
A
18.
If you were designing a rock that resisted weathering, which of the following characteristics would it have?
A. A rock composed of abundant loose pieces.
B. closely spaced fractures
C. a soluble chemical composition
D. a quartz-rich rock
D
19.
Which of the following sites would contain the finest grained sedimentary deposits?
A. mountains at A
B. braided river at C
C. glaciers at B
D. lake at E
E. delta at D
D
20.
Geologists use characteristics such as bedding, mud-
cracks, and color preserved in sedimentary rocks to determine
A. the environment in which the rocks were deposited.
B. a transgression followed by a regression.
C. the exact time the rocks were deposited.
A
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