Question 1

Carbonate sediments are rare in deep sea sediments because the ____.

Accepted Answer

A)  organisms providing shells do not live in the deep sea
B)  abundance of muds and clays cover the carbonate shells
C)  carbonate shells are dissolved in deep water
D)  organisms do not live beyond the edge of the continental shelfE) A) and D)
F) A) and C)

Question 2

More than 75% of the total ocean floor is considered ____.

Accepted Answer

A)  continental shelf
B)  deep ocean floor
C)  continental slope
D)  continental riseE) B) and C)
F) A) and D) B

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

Stratigraphy is the study of the deposition and layering of sediments over time.

Accepted Answer

A) True 
 B)False

Question 5

The study of the ocean's past is referred to as ____.

Accepted Answer

A)  stratigraphy
B)  geology
C)  paleogeochemistry
D)  paleoceanographyE) C) and D)
F) B) and C)

Question 6

Which type of sediment is generated in place, on the spot where we find them?

Accepted Answer

A)  terrigenous sediments
B)  biogenous sediments
C)  hydrogenous (or authigenic) sediments
D)  cosmogenous sedimentsE) None of the above
F) A) and B)

Question 7

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

Accepted Answer

Sediment is a general term referring to ...

Question 8

Aside from manganese, what is the other primary component of manganese nodules?

Accepted Answer

A)  iron oxide
B)  uranium
C)  silver
D)  goldE) A) and D)
F) B) and C)

Question 9

Which sediments arrive in the ocean from continents via wind and water?

Accepted Answer

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

Question 10

The depth in the ocean where the rate at which calcareous sediments are supplied to the seabed equals the rate at which those sediments dissolve. What is this depth called?

Accepted Answer

A)  calcium carbonate compensation depth
B)  calcium dissolution depth
C)  calcium carbonate pressure point
D)  carbonate equalization depthE) A) and B)
F) A) and C)

Question 11

Radiolarians and diatoms are both examples of ____.

Accepted Answer

A)  organisms that are only found in tropical parts of the ocean
B)  single-celled animals
C)  creatures whose shells form siliceous oozes
D)  calcareous oozes in the deepest parts of the oceanE) All of the above
F) C) and D)

Question 12

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 organismsE) B) and C)
F) B) and D)

Question 13

One area in the ocean that has an extreme abundance of sediment deposition is the ____.

Accepted Answer

A)  shallow waters around Alaska
B)  waters around the tip of Africa
C)  deep ocean floor in the middle of the Pacific Ocean
D)  waters near the Gulf Coast of North AmericaE) None of the above
F) A) and B)

Question 14

Large volumes of bottom sediments may be transported long distances by ____.

Accepted Answer

A)  storm waves
B)  icebergs
C)  tidal action.
D)  turbidity currentsE) C) and D)
F) All of the above

Question 15

What are the main sources of terrigenous sediments?

Accepted Answer

Terrigenous sediments are those sediments that have their origins on land and are typically the most common and abundant sediment type on the ocean floor, especially in neritic deposits. There are several sources of terrigenous sediments. First, rivers transport huge amounts of sediments into the ocean and river runoff is the primary source of terrigenous sediments. Scientists predict that 15 billion metric tons of terrigenous sediment is transported by rivers to the ocean each year. Secondly, winds blow dust, sand and volcanic ash into the ocean. It is estimated that about 100 million tons of dust, sand and ash blow into the ocean each year.

Question 16

Most of the floor of the North Pacific Ocean is covered with ____.

Accepted Answer

A)  manganese nodules
B)  glacial-marine sediments
C)  pelagic clay
D)  evaporitesE) A) and C)
F) B) and D) C

Question 17

The analysis of layered sedimentary deposits in the ocean is known as ____.

Accepted Answer

A)  stratigraphy
B)  oceanography
C)  marine biology
D)  ecologyE) C) and D)
F) All of the above

Question 18

Sediment refers to the inorganic materials that accumulate on the ocean floor.

Accepted Answer

A) True 
 B)False

Question 19

Which particles are the finest in size?

Accepted Answer

A)  sand
B)  silt
C)  clay
D)  granulesE) A) and B)
F) A) and C)

Question 20

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

Accepted Answer

A)  erosion
B)  volcanic ash
C)  biogenous sediments
D)  terrigenous sedimentsE) A) and B)
F) A) and C)

Exam 5: Ocean Sediments

Carbonate sediments are rare in deep sea sediments because the ____.

Correct Answer
verified

More than 75% of the total ocean floor is considered ____.

Correct Answer
verified
B

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

Correct Answer
verified

Stratigraphy is the study of the deposition and layering of sediments over time.

Correct Answer
verified

The study of the ocean's past is referred to as ____.

Correct Answer
verified

Which type of sediment is generated in place, on the spot where we find them?

Correct Answer
verified

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

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

Aside from manganese, what is the other primary component of manganese nodules?

Correct Answer
verified

Which sediments arrive in the ocean from continents via wind and water?

Correct Answer
verified

The depth in the ocean where the rate at which calcareous sediments are supplied to the seabed equals the rate at which those sediments dissolve. What is this depth called?

Correct Answer
verified

Radiolarians and diatoms are both examples of ____.

Correct Answer
verified

The oozes on the seafloor mostly consist of ____.

Correct Answer
verified

One area in the ocean that has an extreme abundance of sediment deposition is the ____.

Correct Answer
verified

Large volumes of bottom sediments may be transported long distances by ____.

Correct Answer
verified

What are the main sources of terrigenous sediments?

Most of the floor of the North Pacific Ocean is covered with ____.

Correct Answer
verified
C

The analysis of layered sedimentary deposits in the ocean is known as ____.

Correct Answer
verified

Sediment refers to the inorganic materials that accumulate on the ocean floor.

Correct Answer
verified

Which particles are the finest in size?

Correct Answer
verified

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

Correct Answer
verified

Exam 5: Ocean Sediments

Carbonate sediments are rare in deep sea sediments because the ____.

Correct AnswerverifiedShow Answer

More than 75% of the total ocean floor is considered ____.

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

Stratigraphy is the study of the deposition and layering of sediments over time.

Correct AnswerverifiedShow Answer

The study of the ocean's past is referred to as ____.

Correct AnswerverifiedShow Answer

Which type of sediment is generated in place, on the spot where we find them?

Correct AnswerverifiedShow Answer

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

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

Aside from manganese, what is the other primary component of manganese nodules?

Correct AnswerverifiedShow Answer

Which sediments arrive in the ocean from continents via wind and water?

Correct AnswerverifiedShow Answer

The depth in the ocean where the rate at which calcareous sediments are supplied to the seabed equals the rate at which those sediments dissolve. What is this depth called?

Correct AnswerverifiedShow Answer

Radiolarians and diatoms are both examples of ____.

Correct AnswerverifiedShow Answer

The oozes on the seafloor mostly consist of ____.

Correct AnswerverifiedShow Answer

One area in the ocean that has an extreme abundance of sediment deposition is the ____.

Correct AnswerverifiedShow Answer

Large volumes of bottom sediments may be transported long distances by ____.

Correct AnswerverifiedShow Answer

What are the main sources of terrigenous sediments?

Most of the floor of the North Pacific Ocean is covered with ____.

Correct AnswerverifiedC

The analysis of layered sedimentary deposits in the ocean is known as ____.

Correct AnswerverifiedShow Answer

Sediment refers to the inorganic materials that accumulate on the ocean floor.

Correct AnswerverifiedShow Answer

Which particles are the finest in size?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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B

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

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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C

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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