Question 1

Lithifies can be defined as:

Accepted Answer

A)   loose sediment hardens into sedimentary rock
B)   loose sediment breaks off of sedimentary rocks
C)   sediment settles from the water columnD) All of the above
E) B) and C)

Question 2

Many sedimentary rocks exposed in the Denver region are tilted at a high angle to the horizontal, indicating that:

Accepted Answer

A)   they were originally deposited that way
B)   they were deformed after they were deposited and lithified
C)   they were all deposited along steep mountain frontsD) All of the above
E) A) and B)

Question 3

Which of the following characteristics are NOT used to classify and name clastic sediments?

Accepted Answer

A)   the size of the clasts
B)   the amount of sorting of clasts
C)   the shape of the clasts
D)   the climate in which the clasts are produced
E)   all of these are usedF) A) and B)
G) B) and C)

Question 4

Which of the following can we understand by studying sedimentary rocks?

Accepted Answer

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 theseF) A) and B)
G) B) and D)

Question 5

The uniformly-sized sand shown here would be described as:

Accepted Answer

A)   well sorted
B)   poorly sorted
C)   not sorted
D)   moderately sortedE) C) and D)
F) B) and C)

Question 6

How does iron formation form?

Accepted Answer

A)   evaporation of water in a lake or sea
B)   accumulation of microscopic organisms composed of calcium carbonate
C)   precipitation from seawater early in Earth's history
D)   accumulation of silica-rich organisms or mixing of seawater and groundwaterE) B) and C)
F) A) and B)

Question 7

Fluvial refers to:

Accepted Answer

A)   the processes and sediment of streams and rivers
B)   the movement of fluids underground
C)   the hydrological cycle on landD) All of the above
E) A) and B)

Question 8

What do the characteristics of the rock in this photograph tell you about its environment?

Accepted Answer

A)   deposited by the wind
B)   transported a short distance
C)   transported a long distance or worked by waves
D)   deposited in a lakeE) A) and D)
F) C) and D)

Question 9

Using the stratigraphic section and photographs located in the textbook Chapter 7 Investigation) , determine the possible environments of deposition for the lower basal conglomerate.

Accepted Answer

A)   river system
B)   sand dunes
C)   plant-rich swamp
D)   coral reef
E)   muddy part of oceanF) A) and E)
G) C) and D)

Question 10

The most likely cause of bedding in this image is:

Accepted Answer

A)   changes in wind speed and direction
B)   changes in sediment supply
C)   changes in sea level
D)   wave and tide action at a beachE) All of the above
F) None of the above

Question 11

What do the characteristics of the rock in this photograph tell you about its environment?

Accepted Answer

A)   deposited by the wind
B)   transported a short distance
C)   transported a long distance or worked by waves
D)   deposited in a lakeE) All of the above
F) A) and B)

Question 12

Which way was the current either wind or water)  moving during deposition of this section of rocks?

Accepted Answer

A)   toward the left
B)   toward the camera
C)   toward the right
D)   away from the camera
E)   there is no way to tellF) A) and D)
G) A) and E)

Question 13

Sorting describes:

Accepted Answer

A)   the size range of clasts in sediment
B)   the general shape of the clasts in the sediment
C)   the layering in the sedimentD) None of the above
E) All of the above

Question 14

Large, angular clasts are most likely at:

Accepted Answer

A)   mountains at A and glaciers at B
B)   glaciers at B and braided river at C
C)   braided river at C and delta at D
D)   delta at D and lake at EE) B) and C)
F) A) and B)

Question 15

What type of rock would you form in this plant-rich swamp?

Accepted Answer

A)   rock salt and other evaporite minerals
B)   limestone
C)   coal
D)   chert
E)   iron formationF) C) and D)
G) A) and C)

Question 16

Which of the following situations would result in angular clasts?

Accepted Answer

A)   transport of the clasts over long distance
B)   working of clasts by waves on a beach
C)   steep slopes in a mountain
D)   dunes formed by windE) None of the above
F) B) and D)

Question 17

Shale is a common sedimentary rock because:

Accepted Answer

A)   one of the places clay is deposited is very widespread the seafloor) 
B)   the diagenesis of other deposits often lead to shale
C)   wind deposits of clay can cover any environment
D)   biological organisms rework other deposits into shale over timeE) A) and B)
F) B) and C)

Question 18

Which of the following environments would likely have large clasts?

Accepted Answer

A)   a weak current
B)   steep slopes
C)   dunes formed by wind
D)   all of theseE) C) and D)
F) B) and C)

Question 19

Imbricated clasts in this river means that:

Accepted Answer

A)   the wind was blowing from left to right
B)   the rocks have been shuffled by ground shaking during an earthquake
C)   the rocks have slid downhill to the right
D)   the current flowed from right to leftE) None of the above
F) A) and D)

Question 20

Which of the following sites would have the slowest moving or least energetic current?

Accepted Answer

A)   mountain streams at A
B)   glacial streams at B
C)   braided river at C
D)   delta at D
E)   lake at EF) All of the above
G) B) and E)

Exam 7: Sedimentary Environments

What do the characteristics of the rock in this photograph tell you about its environment?

Correct AnswerverifiedShow Answer

Lithifies can be defined as:

Correct AnswerverifiedShow Answer

What do the characteristics of the rock in this photograph tell you about its environment?

Correct AnswerverifiedShow Answer

Large, angular clasts are most likely at:

Correct AnswerverifiedShow Answer

Shale is a common sedimentary rock because:

Correct AnswerverifiedShow Answer

Imbricated clasts in this river means that:

Correct AnswerverifiedShow Answer

The uniformly-sized sand shown here would be described as:

Correct AnswerverifiedShow Answer

Which of the following environments would likely have large clasts?

Correct AnswerverifiedShow Answer

Which way was the current either wind or water) moving during deposition of this section of rocks?

Correct AnswerverifiedShow Answer

Which of the following situations would result in angular clasts?

Correct AnswerverifiedShow Answer

Sorting describes:

Correct AnswerverifiedShow Answer

The most likely cause of bedding in this image is:

Correct AnswerverifiedShow Answer

Using the stratigraphic section and photographs located in the textbook Chapter 7 Investigation) , determine the possible environments of deposition for the lower basal conglomerate.

Correct AnswerverifiedShow Answer

Fluvial refers to:

Correct AnswerverifiedShow Answer

Which of the following characteristics are NOT used to classify and name clastic sediments?

Correct AnswerverifiedShow Answer

Which of the following sites would have the slowest moving or least energetic current?

Correct AnswerverifiedShow Answer

What type of rock would you form in this plant-rich swamp?

Correct AnswerverifiedShow Answer

How does iron formation form?

Correct AnswerverifiedShow Answer

Which of the following can we understand by studying sedimentary rocks?

Correct AnswerverifiedShow Answer

Many sedimentary rocks exposed in the Denver region are tilted at a high angle to the horizontal, indicating that:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified