Question 1

Match the plate boundary with the appropriate phrase.
-________ characterized by arcs of composite volcanoes and deep-ocean trenches

Accepted Answer

A)  convergent
B)  transform
C)  divergenD) All of the above
E) B) and C)

Question 2

The top of the asthenosphere is closest to the surface ________.

Accepted Answer

A)  along a mid-ocean ridge
B)  along the length of a deep mantle plume
C)  along a transform fault
D)  along a subduction zoneE) A) and B)
F) A) and D)

Question 3

Match the plate boundary with the appropriate phrase.
-________ where subduction zones occur

Accepted Answer

A)  convergent
B)  transform
C)  divergenD) A) and B)
E) A) and C)

Question 4

Deep-hypocentre earthquakes are associated with ________ plate boundaries.

Accepted Answer

A)  divergent
B)  convergent
C)  transform
D)  lateralE) None of the above
F) All of the above

Question 5

The rate of seafloor spreading is, on the average, about one metre per year.

Accepted Answer

A) True 
 B)False

Question 6

Earth's radius and surface area are slowly increasing to accommodate the new oceanic crust being formed at mid-ocean ridges.

Accepted Answer

A) True 
 B)False

Question 7

Name one of the six intermediate sized plates.

Accepted Answer

Arabian, Caribbean, ...

Question 8

Considering the discussion of the Nebular theory from Chapter 1 regarding the origin of our solar system, what is the likelihood that plate tectonics is a viable model for processes operating on other planets?

Accepted Answer

Not likely.Earth's plate tectonic activi...

Question 9

The largest mostly oceanic plate is the ________.

Accepted Answer

A)  Atlantic
B)  Antarctic
C)  Pacific
D)  ScotianE) A) and B)
F) C) and D)

Question 10

________ first related the symmetrical magnetic patterns in seafloor basalts to seafloor spreading at a mid-ocean ridge.

Accepted Answer

A)  Evans, Smith, and Novak
B)  Morley, Vine, and Matthews
C)  Rodgers, Gershwin, and Hammerstein
D)  Wegener, Holmes, and WilsonE) A) and B)
F) All of the above

Question 11

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases.
-Choose the option that does not fit the pattern.

Accepted Answer

A)  oceanic ridge
B)  seafloor spreading
C)  arc volcanoes
D)  divergentE) A) and B)
F) B) and C)

Question 12

What is the maximum age of the sediments found in the Atlantic Basin according to studies by the Deep Sea Drilling Project and the Ocean Drilling Program?

Accepted Answer

< 180 mill...

Question 13

Most transform faults are located ________.

Accepted Answer

A)  along the crests of mountain ranges like the Alpine fault in New Zealand
B)  at ridge-ridge-ridge triple junctions
C)  in the ocean basins connecting offsets along the oceanic ridge system
D)  within continents at old continental sutures or along continental marginsE) A) and C)
F) A) and B)

Question 14

The Aleutian Islands occur at ________.

Accepted Answer

A)  an ocean-ocean convergent boundary on a volcanic arc above a northward-subducting Pacific plate
B)  a transform boundary where North America has moved towards Alaska
C)  a divergent boundary where shield volcanoes are forming
D)  a convergent, continental margin with uplifted fault blocks, much like those of the Basin and Range ProvinceE) B) and C)
F) None of the above

Question 15

Where is the inclination of Earth's magnetic field horizontal?

Accepted Answer

A)  at the equator
B)  at the north and south poles
C)  latitudes between 45 and 50 degrees
D)  in the Bermuda triangleE) None of the above
F) All of the above

Question 16

The ________ is an example of an active, continent-continent collision.

Accepted Answer

A)  Arabian Peninsula slamming into North Africa under the Red Sea
B)  westward movement of the South American plate over the Nazca plate
C)  northern movement of Haida Gwaii toward the Aleutian Trench
D)  northward movement of India under EurasiaE) C) and D)
F) B) and C)

Question 17

The majority of the melts generated over subduction zones erupts as silica rich volcanics.

Accepted Answer

A) True 
 B)False

Question 18

What important physical and chemical process occurs to subducted seafloor as it reaches a depth of 100 kilometres depth in the upper mantle?

Accepted Answer

A)  It experiences nearly a doubling in its density as the subducted basalt recrystallizes to peridotite.
B)  The subducted seafloor entirely melts generating a line of explosive volcanoes.
C)  Heat from the surrounding mantle drives off water and other volatiles from the slab, which escape upwards, lowering the melting point of the overlying asthenospheric mantle.
D)  The cooling of the ocean crust from the cold, deep ocean water of the trenches causes the subducted crust to freeze the mantle, cracking and freezing it to generate the largest earthquakes.E) All of the above
F) A) and C)

Question 19

The distance between Halifax and London UK ________ each year due to plate movements.

Accepted Answer

A)  increases two metres
B)  increases two centimetres
C)  decreases two centimetres
D)  decreases eight metersE) C) and D)
F) B) and C)

Question 20

GPS measurements are useful for determining small scale plate movements.

Accepted Answer

A) True 
 B)False

Exam 12: Plate Tectonics: The Framework for Modern Geology

Deep-hypocentre earthquakes are associated with ________ plate boundaries.

Correct AnswerverifiedShow Answer

The top of the asthenosphere is closest to the surface ________.

Correct AnswerverifiedShow Answer

Match the plate boundary with the appropriate phrase. -________ characterized by arcs of composite volcanoes and deep-ocean trenches

Correct AnswerverifiedShow Answer

Where is the inclination of Earth's magnetic field horizontal?

Correct AnswerverifiedShow Answer

Most transform faults are located ________.

Correct AnswerverifiedShow Answer

The rate of seafloor spreading is, on the average, about one metre per year.

Correct AnswerverifiedShow Answer

Earth's radius and surface area are slowly increasing to accommodate the new oceanic crust being formed at mid-ocean ridges.

Correct AnswerverifiedShow Answer

The majority of the melts generated over subduction zones erupts as silica rich volcanics.

Correct AnswerverifiedShow Answer

Match the plate boundary with the appropriate phrase. -________ where subduction zones occur

Correct AnswerverifiedShow Answer

The largest mostly oceanic plate is the ________.

Correct AnswerverifiedShow Answer

The ________ is an example of an active, continent-continent collision.

Correct AnswerverifiedShow Answer

GPS measurements are useful for determining small scale plate movements.

Correct AnswerverifiedShow Answer

________ first related the symmetrical magnetic patterns in seafloor basalts to seafloor spreading at a mid-ocean ridge.

Correct AnswerverifiedShow Answer

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

Correct AnswerverifiedShow Answer

The distance between Halifax and London UK ________ each year due to plate movements.

Correct AnswerverifiedShow Answer

The Aleutian Islands occur at ________.

Correct AnswerverifiedShow Answer

What is the maximum age of the sediments found in the Atlantic Basin according to studies by the Deep Sea Drilling Project and the Ocean Drilling Program?

Correct Answerverified< 180 mill...View AnswerShow Answer

Considering the discussion of the Nebular theory from Chapter 1 regarding the origin of our solar system, what is the likelihood that plate tectonics is a viable model for processes operating on other planets?

Correct AnswerverifiedNot likely.Earth's plate tectonic activi...View AnswerShow Answer

What important physical and chemical process occurs to subducted seafloor as it reaches a depth of 100 kilometres depth in the upper mantle?

Correct AnswerverifiedShow Answer

Name one of the six intermediate sized plates.

Correct AnswerverifiedArabian, Caribbean, ...View AnswerShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
< 180 mill...
View Answer

Correct Answer
verified
Not likely.Earth's plate tectonic activi...
View Answer

Correct Answer
verified

Correct Answer
verified
Arabian, Caribbean, ...
View Answer