Question 1

What type of feature is interpreted to cause some parts of the Caribbean to be shallower than expected?

Accepted Answer

A)  seafloor spreading along the Mid-Atlantic Ridge 
B)  an impact crater that formed at about the time that the dinosaurs died 
C)  an oceanic plateau that may have originated in the Pacific 
D)  a currently active hot spot that is not associated with volcanoes 
A)  seafloor spreading along the Mid-Atlantic Ridge 
B)  an impact crater that formed at about the time that the dinosaurs died 
C)  an oceanic plateau that may have originated in the Pacific 
D)  a currently active hot spot that is not associated with volcanoes

Question 2

What process thins the continental crust before it meets the oceanic crust at the continental slope?

Accepted Answer

A)  normal faulting 
B)  subduction 
C)  river erosion 
D)  sediment deposition 
A)  normal faulting 
B)  subduction 
C)  river erosion 
D)  sediment deposition

Question 3

Which of the following is associated with a fast-spreading ridge?

Accepted Answer

A)  rates of about 10 centimeters per year or more 
B)  a broad ridge because the rocks remain hotter farther from the center of spreading 
C)  less of a deep central rift than in a slow spreading ridge 
D)  all of these 
A)  rates of about 10 centimeters per year or more 
B)  a broad ridge because the rocks remain hotter farther from the center of spreading 
C)  less of a deep central rift than in a slow spreading ridge 
D)  all of these

Question 4

Oceanic plateaus form from basaltic volcanism originating from:

Accepted Answer

A)  hot spots 
B)  mid-ocean ridges 
C)  trenches 
A)  hot spots 
B)  mid-ocean ridges 
C)  trenches

Question 5

The area behind an island arc that develops a spreading center is a an):

Accepted Answer

A)  back-arc basin 
B)  trench 
C)  abyssal plain 
D)  passive margin 
A)  back-arc basin 
B)  trench 
C)  abyssal plain 
D)  passive margin

Question 6

Submarine canyons in the continental slope are eroded by:

Accepted Answer

A)  turbidity currents 
B)  rivers 
C)  glaciers 
A)  turbidity currents 
B)  rivers 
C)  glaciers

Question 7

On the map shown, R has the youngest oceanic crust because:

Accepted Answer

A)  it is at a spreading center 
B)  it is at a passive margin 
C)  it is at a trench 
A)  it is at a spreading center 
B)  it is at a passive margin 
C)  it is at a trench

Question 8

This figure shows ages of seafloor. Which of the numbered sites is on the youngest seafloor, based on its position?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 9

Where was seafloor spreading occurring in the Investigation area?

Accepted Answer

A)  in the middle of the ocean between two continents 
B)  beneath a line of islands in the center of the region 
C)  within the central continent 
D)  within the eastern continent 
E)  all of these 
A)  in the middle of the ocean between two continents 
B)  beneath a line of islands in the center of the region 
C)  within the central continent 
D)  within the eastern continent 
E)  all of these

Question 10

What occurs near black smokers?

Accepted Answer

A)  circular features called chimneys) form, composed of sulfide and sulfate minerals 
B)  heated fresh water is derived from the land 
C)  organic-rich shale burns in the subsurface 
D)  coal-rich layers burn in the subsurface 
E)  none of these 
A)  circular features called chimneys) form, composed of sulfide and sulfate minerals 
B)  heated fresh water is derived from the land 
C)  organic-rich shale burns in the subsurface 
D)  coal-rich layers burn in the subsurface 
E)  none of these

Question 11

What is currently the dominant type of motion along the northern boundary of the Caribbean plate?

Accepted Answer

A)  subduction of the Caribbean plate beneath Cuba 
B)  subduction of the Gulf of Mexico beneath the Caribbean plate 
C)  subduction of the Caribbean plate beneath the volcanoes of Central America 
D)  seafloor spreading that is moving North America farther from South America 
E)  a long transform fault moving the Caribbean plate eastward relative to North America 
A)  subduction of the Caribbean plate beneath Cuba 
B)  subduction of the Gulf of Mexico beneath the Caribbean plate 
C)  subduction of the Caribbean plate beneath the volcanoes of Central America 
D)  seafloor spreading that is moving North America farther from South America 
E)  a long transform fault moving the Caribbean plate eastward relative to North America

Question 12

This map shows plate boundaries in the Caribbean region. Which number is closest to a transform boundary?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 13

Which of the following locations contains modern coral reefs?

Accepted Answer

A)  Bahamas 
B)  Philippines 
C)  Polynesia 
D)  All of these locations are contain modern coral reefs 
A)  Bahamas 
B)  Philippines 
C)  Polynesia 
D)  All of these locations are contain modern coral reefs

Question 14

Which two continents rifted apart to form the central Atlantic Ocean?

Accepted Answer

A)  India and Australia 
B)  South America and Antarctica 
C)  Europe and Asia 
D)  North America and Africa 
E)  none of these 
A)  India and Australia 
B)  South America and Antarctica 
C)  Europe and Asia 
D)  North America and Africa 
E)  none of these

Question 15

This figure shows ages of seafloor. Which of the numbered sites is on the deepest seafloor, based on its position?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 16

Which of the following is the present plate-tectonic setting of oceanic crust in the Bering Sea?

Accepted Answer

A)  it contains a mid-ocean ridge 
B)  it is being generated by back-arc spreading 
C)  it does not contain any currently active plate boundaries 
D)  it was formed by thinning of continental crust 
A)  it contains a mid-ocean ridge 
B)  it is being generated by back-arc spreading 
C)  it does not contain any currently active plate boundaries 
D)  it was formed by thinning of continental crust

Question 17

What method produces images of the materials beneath the seafloor using sound waves?

Accepted Answer

A)  Seismic-reflection profiling 
B)  Ocean drilling 
C)  Satellites 
D)  Submersibles 
A)  Seismic-reflection profiling 
B)  Ocean drilling 
C)  Satellites 
D)  Submersibles

Question 18

Why did the Great Barrier Reef in Australia grow upward, forming the largest organic structure on Earth?

Accepted Answer

A)  Sea level rose. 
B)  Sea level fell. 
C)  Elevation of the seafloor rose. 
A)  Sea level rose. 
B)  Sea level fell. 
C)  Elevation of the seafloor rose.

Question 19

How did the South Atlantic Ocean Form?

Accepted Answer

A)  Asia rifted apart from Europe 
B)  Africa and North America collided to form the Appalachian Mountains 
C)  a piece of California started moving northward up the west coast 
D)  South America rifted apart from Africa 
E)  none of these 
A)  Asia rifted apart from Europe 
B)  Africa and North America collided to form the Appalachian Mountains 
C)  a piece of California started moving northward up the west coast 
D)  South America rifted apart from Africa 
E)  none of these

Question 20

This figure shows ages of seafloor. Which of the numbered sites is on the oldest seafloor, based on its position?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

What type of feature is interpreted to cause some parts of the Caribbean to be shallower than expected?

What process thins the continental crust before it meets the oceanic crust at the continental slope?

Which of the following is associated with a fast-spreading ridge?

Oceanic plateaus form from basaltic volcanism originating from:

The area behind an island arc that develops a spreading center is a an):

Submarine canyons in the continental slope are eroded by:

On the map shown, R has the youngest oceanic crust because:

This figure shows ages of seafloor. Which of the numbered sites is on the youngest seafloor, based on its position?

Where was seafloor spreading occurring in the Investigation area?

What occurs near black smokers?

What is currently the dominant type of motion along the northern boundary of the Caribbean plate?

This map shows plate boundaries in the Caribbean region. Which number is closest to a transform boundary?

Which of the following locations contains modern coral reefs?

Which two continents rifted apart to form the central Atlantic Ocean?

This figure shows ages of seafloor. Which of the numbered sites is on the deepest seafloor, based on its position?

Which of the following is the present plate-tectonic setting of oceanic crust in the Bering Sea?

What method produces images of the materials beneath the seafloor using sound waves?

Why did the Great Barrier Reef in Australia grow upward, forming the largest organic structure on Earth?

How did the South Atlantic Ocean Form?

This figure shows ages of seafloor. Which of the numbered sites is on the oldest seafloor, based on its position?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

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Exam 10: Seafloor and Continental Margins

What type of feature is interpreted to cause some parts of the Caribbean to be shallower than expected?

What process thins the continental crust before it meets the oceanic crust at the continental slope?

Which of the following is associated with a fast-spreading ridge?

Oceanic plateaus form from basaltic volcanism originating from:

The area behind an island arc that develops a spreading center is a an):

Submarine canyons in the continental slope are eroded by:

On the map shown, R has the youngest oceanic crust because:

This figure shows ages of seafloor. Which of the numbered sites is on the youngest seafloor, based on its position?

Where was seafloor spreading occurring in the Investigation area?

What occurs near black smokers?

What is currently the dominant type of motion along the northern boundary of the Caribbean plate?

This map shows plate boundaries in the Caribbean region. Which number is closest to a transform boundary?

Which of the following locations contains modern coral reefs?

Which two continents rifted apart to form the central Atlantic Ocean?

This figure shows ages of seafloor. Which of the numbered sites is on the deepest seafloor, based on its position?

Which of the following is the present plate-tectonic setting of oceanic crust in the Bering Sea?

What method produces images of the materials beneath the seafloor using sound waves?

Why did the Great Barrier Reef in Australia grow upward, forming the largest organic structure on Earth?

How did the South Atlantic Ocean Form?

This figure shows ages of seafloor. Which of the numbered sites is on the oldest seafloor, based on its position?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments

Deformation and Metamorphism

Geologic Time

Mountains, Basins, and Continents

Earthquakes and Earths Interior

Climate and Weathering

Glaciers, Shorelines, and Changing Sea Levels

Weathering, Soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

Filters