Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

What are the main sources of terrigenous sediments?

Accepted Answer

Terrigenous sediments are those sediment

Question 3

Abyssal plains and abyssal hills cover a quarter of Earth's surface.

Accepted Answer

A) True 
 B)False

Question 4

Sediments are organic or inorganic materials that accumulate on the seafloor.

Accepted Answer

A) True 
 B)False

Question 5

Abyssal hills are small extinct volcanoes commonly associated with .

Accepted Answer

A)  seafloor spreading 
B)  convergent zones 
C)  active continental margins 
D)  continental shelves 
A)  seafloor spreading 
B)  convergent zones 
C)  active continental margins 
D)  continental shelves

Question 6

Radiolarians and diatoms are both examples of .

Accepted Answer

A)  organisms that are only found in tropical parts of the ocean 
B)  multi-celled animals 
C)  creatures whose shells form siliceous oozes 
D)  calcareous oozes in the deepest parts of the ocean 
A)  organisms that are only found in tropical parts of the ocean 
B)  multi-celled animals 
C)  creatures whose shells form siliceous oozes 
D)  calcareous oozes in the deepest parts of the ocean

Question 7

Which type of sediment is of organic origin, that is, made by organisms?

Accepted Answer

A)  terrigenous sediments 
B)  biogenous sediments 
C)  hydrogenous (or authigenic) sediments 
D)  cosmogenous sediments 
A)  terrigenous sediments 
B)  biogenous sediments 
C)  hydrogenous (or authigenic) sediments 
D)  cosmogenous sediments

Question 8

In the process of lithification , sediments .

Accepted Answer

A)  are subducted into the mantle at a deep trench 
B)  are converted into solid rock 
C)  slip into the center of the mid-ocean ridges and become new seafloor 
D)  are uplifted to form the edges of continents 
A)  are subducted into the mantle at a deep trench 
B)  are converted into solid rock 
C)  slip into the center of the mid-ocean ridges and become new seafloor 
D)  are uplifted to form the edges of continents

Question 9

The islands bordering deep-sea trenches are .

Accepted Answer

A)  also referred to as "black smokers" 
B)  accumulations of sediments on the margins of the trenches 
C)  formed from the activities of coral and other organisms 
D)  eruptive volcanoes called island arcs 
A)  also referred to as "black smokers" 
B)  accumulations of sediments on the margins of the trenches 
C)  formed from the activities of coral and other organisms 
D)  eruptive volcanoes called island arcs

Question 10

Which sediments would be considered oozes?

Accepted Answer

A)  terrigenous sediments 
B)  biogenous sediments 
C)  hydrogenous (or authigenic) sediments 
D)  cosmogenous sediments 
A)  terrigenous sediments 
B)  biogenous sediments 
C)  hydrogenous (or authigenic) sediments 
D)  cosmogenous sediments

Question 11

Distinguish between active and passive continental margins.

Accepted Answer

As lithospheric plates move about the pl

Question 12

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

Accepted Answer

A)  iron oxide 
B)  uranium 
C)  silver 
D)  gold 
A)  iron oxide 
B)  uranium 
C)  silver 
D)  gold

Question 13

What are submarine canyons and how are they formed?

Accepted Answer

A submarine canyon is a canyon that cuts

Question 14

A seamount is a volcanic projection that does not rise above the surface.

Accepted Answer

A) True 
 B)False

Question 15

The origin of submarine canyons is not well understood but is most likely to be .

Accepted Answer

A)  erosional, caused by a combination of stream erosion and turbidity currents 
B)  tectonic, representing down-folds of rock within the continental shelf 
C)  organic, resulting from the activities of burrowing organisms 
D)  glacial, through the process of depositing rock debris from melted ice on the shelf 
A)  erosional, caused by a combination of stream erosion and turbidity currents 
B)  tectonic, representing down-folds of rock within the continental shelf 
C)  organic, resulting from the activities of burrowing organisms 
D)  glacial, through the process of depositing rock debris from melted ice on the shelf

Question 16

Which of the following are hydrogenous sediments?

Accepted Answer

A)  quartz sand 
B)  phosphorite deposits 
C)  siliceous oozes 
D)  tektite spheres 
A)  quartz sand 
B)  phosphorite deposits 
C)  siliceous oozes 
D)  tektite spheres

Question 17

Passive continental margins are sometimes referred to Atlantic-type margins.

Accepted Answer

A) True 
 B)False

Question 18

Active continental margins are located .

Accepted Answer

A)  along the east coast of the United States 
B)  along the east coast of South America 
C)  on the west coasts of both North and South America 
D)  all around Africa 
A)  along the east coast of the United States 
B)  along the east coast of South America 
C)  on the west coasts of both North and South America 
D)  all around Africa

Question 19

The Challenger expedition used multibeam echo sounders to contour the seafloor.

Accepted Answer

A) True 
 B)False

Question 20

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 
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

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

What are the main sources of terrigenous sediments?

Abyssal plains and abyssal hills cover a quarter of Earth's surface.

Sediments are organic or inorganic materials that accumulate on the seafloor.

Abyssal hills are small extinct volcanoes commonly associated with .

Radiolarians and diatoms are both examples of .

Which type of sediment is of organic origin, that is, made by organisms?

In the process of lithification , sediments .

The islands bordering deep-sea trenches are .

Which sediments would be considered oozes?

Distinguish between active and passive continental margins.

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

What are submarine canyons and how are they formed?

A seamount is a volcanic projection that does not rise above the surface.

The origin of submarine canyons is not well understood but is most likely to be .

Which of the following are hydrogenous sediments?

Passive continental margins are sometimes referred to Atlantic-type margins.

Active continental margins are located .

The Challenger expedition used multibeam echo sounders to contour the seafloor.

The oozes on the seafloor mostly consist of .

An Ocean World

Plate Tectonics

Water and Ocean Structure

Atmospheric Circulation

Ocean Circulation

Waves and Tides

Coasts

Life in the Ocean

Marine Communities

Uses and Abuses of the Ocean

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Exam 3: The Ocean Floor

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

What are the main sources of terrigenous sediments?

Abyssal plains and abyssal hills cover a quarter of Earth's surface.

Sediments are organic or inorganic materials that accumulate on the seafloor.

Abyssal hills are small extinct volcanoes commonly associated with .

Radiolarians and diatoms are both examples of .

Which type of sediment is of organic origin, that is, made by organisms?

In the process of lithification , sediments .

The islands bordering deep-sea trenches are .

Which sediments would be considered oozes?

Distinguish between active and passive continental margins.

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

What are submarine canyons and how are they formed?

A seamount is a volcanic projection that does not rise above the surface.

The origin of submarine canyons is not well understood but is most likely to be .

Which of the following are hydrogenous sediments?

Passive continental margins are sometimes referred to Atlantic-type margins.

Active continental margins are located .

The Challenger expedition used multibeam echo sounders to contour the seafloor.

The oozes on the seafloor mostly consist of .

An Ocean World

Plate Tectonics

Water and Ocean Structure

Atmospheric Circulation

Ocean Circulation

Waves and Tides

Coasts

Life in the Ocean

Marine Communities

Uses and Abuses of the Ocean

Filters