Question 1

Manganese nodules were discovered during the Challenger expedition and are hydrogenous sediments.

Accepted Answer

A) True 
 B)False

Question 2

Most of the floor of the North Pacific Ocean is covered with:

Accepted Answer

A)   manganese nodules.
B)   biogenous oozes.
C)   red and brown clays.
D)   evaporites.E) C) and D)
F) None of the above

Question 3

Sand is classified as sediment that has a diameter no larger than:

Accepted Answer

A)   4 mm.
B)  0.2 mm.
C)   2 mm.
D)  0.004 mm.E) A) and C)
F) All of the above

Question 4

Which of the following would be considered oozes?

Accepted Answer

A)   Terrigenous sediments.
B)   Biogenous sediments.
C)   Hydrogenous (or authigenic)  sediments.
D)   Cosmogenous sediments.E) All of the above
F) None of the above

Question 5

Large volumes of bottom sediments may be transported long distances by:

Accepted Answer

A)   storm waves.
B)   icebergs.
C)   tidal action.
D)   turbidity currents.E) B) and C)
F) A) and D)

Question 6

Over millions of years, natural gas and oil can be formed from:

Accepted Answer

A)   erosion.
B)   volcanic ash.
C)   biogenous sediments.
D)   terrigenous sediments.E) A) and D)
F) None of the above

Question 7

The only way in which calcium carbonate sediment can form is by evaporation.

Accepted Answer

A) True 
 B)False

Question 8

A depression along the boundary of a seamount where sediment has built-up is a:

Accepted Answer

A)   scour moat.
B)   guyot.
C)   island arc.
D)   abyssal plain.E) B) and C)
F) All of the above

Question 9

Which of the following is the most abundant sediment in neritic deposits?

Accepted Answer

A)   terrigenous sediments
B)   biogenous sediments
C)   hydrogenous (or authigenic)  sediments
D)   cosmogenous sedimentsE) A) and C)
F) All of the above

Question 10

Some sediment originates from the remnants of organisms.

Accepted Answer

A) True 
 B)False

Question 11

The oozes on the seafloor mostly consist of:

Accepted Answer

A)   boulders and cobbles from glaciers oozing off the land.
B)   bones and teeth of bottom-dwelling fishes.
C)   fine muds washed down the continental slope to the seafloor.
D)   microscopic hard parts of single-celled living organisms.E) A) and B)
F) None of the above

Question 12

Radiolarians and diatoms are both examples of:

Accepted Answer

A)   multicellular organisms.
B)   single-celled animals.
C)   creatures whose shells form siliceous oozes.
D)   calcareous oozes in the deepest parts of the ocean.E) B) and D)
F) B) and C)

Question 13

The analysis of layered sedimentary deposits in the ocean is:

Accepted Answer

A)   stratigraphy.
B)   oceanography.
C)   marine biology.
D)   ecology.E) A) and B)
F) A) and C)

Question 14

Which of the following metals is not usually found in manganese nodules?

Accepted Answer

A)   iron
B)   uranium
C)   nickel
D)   cobaltE) A) and D)
F) A) and C)

Question 15

What is sediment and what are the 4 classifications of marine sediments based on their origin?

Accepted Answer

Sediment is a general term referring to ...

Question 16

An example of a siliceous ooze are those formed from radiolarian shells.

Accepted Answer

A) True 
 B)False

Question 17

Carbonate sediments are rare in deep sea sediments because:

Accepted Answer

A)   the organisms providing shells do not live in the deep sea.
B)   the abundance of muds and clays cover the carbonate shells.
C)   the carbonate shells are dissolved in deep water.
D)   the organisms do not live beyond the edge of the continental shelf.E) A) and D)
F) None of the above

Question 18

Underlying the unconsolidated sediments of the seafloor are:

Accepted Answer

A)   basalt pillows and basement rocks.
B)   granite crust.
C)   glacial deposits left from the Ice Age.
D)   ancient remnants of continental crust.E) A) and D)
F) B) and C)

Question 19

An example of a terrigenous sediment is the manganese nodule.

Accepted Answer

A) True 
 B)False

Question 20

Paleoceanography is the study of past processes and past events that have occurred in the ocean. What types of questions do paleoceanographers ask and what are the methods they use to obtain information about the ocean's past?

Accepted Answer

Deep-sea sediments hold about a 180 mill...

Exam 5: Ocean Sediments

Sand is classified as sediment that has a diameter no larger than:

Correct AnswerverifiedShow Answer

An example of a siliceous ooze are those formed from radiolarian shells.

Correct AnswerverifiedShow Answer

The oozes on the seafloor mostly consist of:

Correct AnswerverifiedShow Answer

Most of the floor of the North Pacific Ocean is covered with:

Correct AnswerverifiedShow Answer

Large volumes of bottom sediments may be transported long distances by:

Correct AnswerverifiedShow Answer

Which of the following is the most abundant sediment in neritic deposits?

Correct AnswerverifiedShow Answer

The analysis of layered sedimentary deposits in the ocean is:

Correct AnswerverifiedShow Answer

Underlying the unconsolidated sediments of the seafloor are:

Correct AnswerverifiedShow Answer

What is sediment and what are the 4 classifications of marine sediments based on their origin?

Correct AnswerverifiedSediment is a general term referring to ...View AnswerShow Answer

Over millions of years, natural gas and oil can be formed from:

Correct AnswerverifiedShow Answer

Which of the following metals is not usually found in manganese nodules?

Correct AnswerverifiedShow Answer

Radiolarians and diatoms are both examples of:

Correct AnswerverifiedShow Answer

Which of the following would be considered oozes?

Correct AnswerverifiedShow Answer

Paleoceanography is the study of past processes and past events that have occurred in the ocean. What types of questions do paleoceanographers ask and what are the methods they use to obtain information about the ocean's past?

Correct AnswerverifiedDeep-sea sediments hold about a 180 mill...View AnswerShow Answer

Carbonate sediments are rare in deep sea sediments because:

Correct AnswerverifiedShow Answer

Manganese nodules were discovered during the Challenger expedition and are hydrogenous sediments.

Correct AnswerverifiedShow Answer

Some sediment originates from the remnants of organisms.

Correct AnswerverifiedShow Answer

A depression along the boundary of a seamount where sediment has built-up is a:

Correct AnswerverifiedShow Answer

The only way in which calcium carbonate sediment can form is by evaporation.

Correct AnswerverifiedShow Answer

An example of a terrigenous sediment is the manganese nodule.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Sediment is a general term referring to ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Deep-sea sediments hold about a 180 mill...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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