Question 1

What part of North America contains the oldest exposed rocks?

Accepted Answer

A) the Appalachian Mountains 
B) western North America 
C) Alaska and western Canada 
D) the Canadian Shield 
E) the east coast of Canada and nearby parts of the U.S. 
A) the Appalachian Mountains 
B) western North America 
C) Alaska and western Canada 
D) the Canadian Shield 
E) the east coast of Canada and nearby parts of the U.S.

Question 2

Which feature on this figure formed after the two terranes were already joined?

Accepted Answer

A) sediment with fossils (F) 
B) the overlapping sedimentary unit (O) 
C) the pluton (P) 
D) all of these 
A) sediment with fossils (F) 
B) the overlapping sedimentary unit (O) 
C) the pluton (P) 
D) all of these

Question 3

What would probably happen to the small piece of continent that was offshore (in the middle of the ocean)?

Accepted Answer

A) it will be rifted in two,forming a new ocean basin 
B) it will be carried farther out to sea by seafloor spreading 
C) it will be carried toward and collide with the continent 
D) there was no small piece of continent offshore in the ocean 
A) it will be rifted in two,forming a new ocean basin 
B) it will be carried farther out to sea by seafloor spreading 
C) it will be carried toward and collide with the continent 
D) there was no small piece of continent offshore in the ocean

Question 4

Which of the following would cause uplift along an ocean-continent convergent margin?

Accepted Answer

A) thinning of the lithosphere above the subduction zone 
B) addition of magmas into the crust from the subduction zone 
C) formation of a fold and thrust belt 
D) all of these 
A) thinning of the lithosphere above the subduction zone 
B) addition of magmas into the crust from the subduction zone 
C) formation of a fold and thrust belt 
D) all of these

Question 5

On the image below,what feature will be present in the future at site A?

Accepted Answer

A) passive margin 
B) trench and accretionary prism 
C) volcanic mountain belt and nearby fold and thrust belt 
A) passive margin 
B) trench and accretionary prism 
C) volcanic mountain belt and nearby fold and thrust belt

Question 6

How will future tectonic events change the thickness of the crust?

Accepted Answer

A) it will thin the crust along the west coast and the east coast 
B) it will thin the crust along the west coast and thicken the crust along the east coast 
C) it will thicken the crust along the west coast and thin the crust along the east coast 
D) it will thicken the crust along both the west and east coast 
A) it will thin the crust along the west coast and the east coast 
B) it will thin the crust along the west coast and thicken the crust along the east coast 
C) it will thicken the crust along the west coast and thin the crust along the east coast 
D) it will thicken the crust along both the west and east coast

Question 7

Which parts of North America have NOT been added to the continent since the Precambrian?

Accepted Answer

A) some parts of the Appalachian Mountains 
B) rocks along the West Coast 
C) Alaska and western Canada 
D) Canadian Shield 
E) all of these 
A) some parts of the Appalachian Mountains 
B) rocks along the West Coast 
C) Alaska and western Canada 
D) Canadian Shield 
E) all of these

Question 8

If you had this type of deformation of a region,it would:

Accepted Answer

A) thicken the crust and cause subsidence 
B) thicken the crust and cause uplift 
C) thin the crust and cause subsidence 
D) thin the crust and cause uplift 
E) none of these 
A) thicken the crust and cause subsidence 
B) thicken the crust and cause uplift 
C) thin the crust and cause subsidence 
D) thin the crust and cause uplift 
E) none of these

Question 9

Which statement best describes how region 4 will look in the future?

Accepted Answer

A) lower in elevation because the weight of nearby thrust sheets will cause this part of the continent to flex downward,forming a basin 
B) higher in elevation because magma generated along a subduction zone will rise into and thicken the crust 
C) close to sea level because the region's crust will be thinned by thrust faulting 
A) lower in elevation because the weight of nearby thrust sheets will cause this part of the continent to flex downward,forming a basin 
B) higher in elevation because magma generated along a subduction zone will rise into and thicken the crust 
C) close to sea level because the region's crust will be thinned by thrust faulting

Question 10

What will happen during movement on these normal faults?

Accepted Answer

A) the crust will thicken and the region will be uplifted 
B) the crust will thin and the region will be uplifted 
C) the fault blocks will rotate in the same direction,like books sliding on a shelf 
D) the blocks will be uplifted or downdropped with only minor rotation 
A) the crust will thicken and the region will be uplifted 
B) the crust will thin and the region will be uplifted 
C) the fault blocks will rotate in the same direction,like books sliding on a shelf 
D) the blocks will be uplifted or downdropped with only minor rotation

Question 11

Which feature is interpreted to be in the Yellowstone region (1)?

Accepted Answer

A) a continental collision 
B) a meteorite impact 
C) a continental hot spot 
D) a foreland basin 
A) a continental collision 
B) a meteorite impact 
C) a continental hot spot 
D) a foreland basin

Question 12

Which of the following is used to match continents or track positions of the continents in the past?

Accepted Answer

A) reconstructions of seafloor spreading 
B) rock types and structures 
C) magnetism stored in rocks 
D) all of these 
E) a and b only 
A) reconstructions of seafloor spreading 
B) rock types and structures 
C) magnetism stored in rocks 
D) all of these 
E) a and b only

Question 13

How many times has rifting occurred along eastern North America since 600 million years ago?

Accepted Answer

A) once in the Mesozoic 
B) once near the start of the Paleozoic 
C) twice,once in the Mesozoic and once near the start of the Paleozoic 
D) four times 
A) once in the Mesozoic 
B) once near the start of the Paleozoic 
C) twice,once in the Mesozoic and once near the start of the Paleozoic 
D) four times

Question 14

How can we tell that the Himalaya has been uplifted?

Accepted Answer

A) uplift can be measured with a global positioning system (GPS) 
B) deep rocks are exposed at the surface and yield young isotopic ages 
C) the top of Mount Everest contains a limestone with marine fossils 
D) all of these 
A) uplift can be measured with a global positioning system (GPS) 
B) deep rocks are exposed at the surface and yield young isotopic ages 
C) the top of Mount Everest contains a limestone with marine fossils 
D) all of these

Question 15

Which statement best describes how region 5 will look in the future?

Accepted Answer

A) higher in elevation because magma generated along a subduction zone will rise into and thicken the crust 
B) close to sea level because it will be underlain by a combination of oceanic crust and thin continental crust 
C) below sea level as this area becomes part of an accretionary prism 
A) higher in elevation because magma generated along a subduction zone will rise into and thicken the crust 
B) close to sea level because it will be underlain by a combination of oceanic crust and thin continental crust 
C) below sea level as this area becomes part of an accretionary prism

Question 16

Which of the following is a valid description of features within continental interiors?

Accepted Answer

A) The central region of a continent is called a shield and is a broad,basaltic volcano with gentle slopes. 
B) The continental platform has nearly horizontal sedimentary rocks deposited on crystalline basement. 
C) The oldest exposed rocks in a continent are usually along the coastline. 
D) Broad domes and basins in continental interiors have nearly vertical beds around their flanks. 
E) All of these. 
A) The central region of a continent is called a shield and is a broad,basaltic volcano with gentle slopes. 
B) The continental platform has nearly horizontal sedimentary rocks deposited on crystalline basement. 
C) The oldest exposed rocks in a continent are usually along the coastline. 
D) Broad domes and basins in continental interiors have nearly vertical beds around their flanks. 
E) All of these.

Question 17

Which of the following is NOT a common setting in which a terrane originally forms?

Accepted Answer

A) oceanic plateau 
B) island arc 
C) oceanic crust 
D) linear island chain 
E) all of these are common settings for a terrane 
A) oceanic plateau 
B) island arc 
C) oceanic crust 
D) linear island chain 
E) all of these are common settings for a terrane

Question 18

Which statement best describes how region 2 will look in the future?

Accepted Answer

A) close to sea level because divergence between the two plates will thin the continental crust,forming a passive margin 
B) added to the edge of a continent,forming a tectonic terrane 
C) a deep basin that is underlain by oceanic crust and a thin sediment cover 
A) close to sea level because divergence between the two plates will thin the continental crust,forming a passive margin 
B) added to the edge of a continent,forming a tectonic terrane 
C) a deep basin that is underlain by oceanic crust and a thin sediment cover

Question 19

Which feature on this figure formed during the time when these two terranes joined?

Accepted Answer

A) sediment with fossils (F) 
B) the overlapping sedimentary unit (O) 
C) the pluton (P) 
D) the shear zone and fault (S) 
E) all of these 
A) sediment with fossils (F) 
B) the overlapping sedimentary unit (O) 
C) the pluton (P) 
D) the shear zone and fault (S) 
E) all of these

Question 20

Which numbered site is likely to have a thin sequence of sediments over crystalline rocks of the basement?

Accepted Answer

A) 1,the continental shield 
B) 2,the continental platform 
C) 3,a basin in the continent 
D) 4,a continental shelf 
E) 5,a deep sediment-filled basin next to the continent 
A) 1,the continental shield 
B) 2,the continental platform 
C) 3,a basin in the continent 
D) 4,a continental shelf 
E) 5,a deep sediment-filled basin next to the continent

What part of North America contains the oldest exposed rocks?

Which feature on this figure formed after the two terranes were already joined?

What would probably happen to the small piece of continent that was offshore (in the middle of the ocean)?

Which of the following would cause uplift along an ocean-continent convergent margin?

On the image below,what feature will be present in the future at site A?

How will future tectonic events change the thickness of the crust?

Which parts of North America have NOT been added to the continent since the Precambrian?

If you had this type of deformation of a region,it would:

Which statement best describes how region 4 will look in the future?

What will happen during movement on these normal faults?

Which feature is interpreted to be in the Yellowstone region (1)?

Which of the following is used to match continents or track positions of the continents in the past?

How many times has rifting occurred along eastern North America since 600 million years ago?

How can we tell that the Himalaya has been uplifted?

Which statement best describes how region 5 will look in the future?

Which of the following is a valid description of features within continental interiors?

Which of the following is NOT a common setting in which a terrane originally forms?

Which statement best describes how region 2 will look in the future?

Which feature on this figure formed during the time when these two terranes joined?

Which numbered site is likely to have a thin sequence of sediments over crystalline rocks of the basement?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments and Rocks

Deformation and Metamorphism

Geologic Time

The Seafloor and Continental Margins

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

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

Exam 11: Mountains, basins, and Continents

What part of North America contains the oldest exposed rocks?

Which feature on this figure formed after the two terranes were already joined?

What would probably happen to the small piece of continent that was offshore (in the middle of the ocean)?

Which of the following would cause uplift along an ocean-continent convergent margin?

On the image below,what feature will be present in the future at site A?

How will future tectonic events change the thickness of the crust?

Which parts of North America have NOT been added to the continent since the Precambrian?

If you had this type of deformation of a region,it would:

Which statement best describes how region 4 will look in the future?

What will happen during movement on these normal faults?

Which feature is interpreted to be in the Yellowstone region (1)?

Which of the following is used to match continents or track positions of the continents in the past?

How many times has rifting occurred along eastern North America since 600 million years ago?

How can we tell that the Himalaya has been uplifted?

Which statement best describes how region 5 will look in the future?

Which of the following is a valid description of features within continental interiors?

Which of the following is NOT a common setting in which a terrane originally forms?

Which statement best describes how region 2 will look in the future?

Which feature on this figure formed during the time when these two terranes joined?

Which numbered site is likely to have a thin sequence of sediments over crystalline rocks of the basement?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Sedimentary Environments and Rocks

Deformation and Metamorphism

Geologic Time

The Seafloor and Continental Margins

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

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