Question 1

The Appalachians and Himalaya are a classic collisional mountain belts yet the elevation of the Appalachians mountains is a tiny fraction of the lofty Himalaya.Why are these two collisional mountain belts so different?

Accepted Answer

The answer of The Appalachians and Himalaya are a classic...

Question 2

Use this figure for the following questions:  The figure above is an oblique Google earth image from southwestern North America looking approximately north.The view is approximately 50km across.The area is a classic area of normal faulting.
-The topographic highlands,or ranges,in this area labeled A are also called ________ blocks.

Accepted Answer

The answer of Use this figure for the following questions:...

Question 3

Most active faults pose a risk to society because they can potentially produce ________.

Accepted Answer

A) landslides 
B) tsunamis 
C) earthquakes 
D) disruptions in groundwater flow

Question 4

Use this figure for the following questions:  The figure above shows a popular area for North American tourists in winter,the Caribbean region.Match the term to the letter on the Figure.
-Forearc Basin

Accepted Answer

The answer of Use this figure for the following questions:...

Question 5

________

Accepted Answer

The answer of ________ ...

Question 6

Use this figure for the following questions:  The figure above shows a popular area for North American tourists in winter,the Caribbean region.Match the term to the letter on the Figure.
-Island arc

Accepted Answer

The answer of Use this figure for the following questions:...

Question 7

Island arcs and Andean type mountains are both examples of mountains formed by ________.

Accepted Answer

A) collisional tectonics 
B) subduction 
C) rifting/oceanic spreading 
D) transform faults

Question 8

A good example of a present-day,passive continental margin is the ________.

Accepted Answer

A) north flank of the East Pacific Rise 
B) west coast of South America 
C) east coast of the Japanese Islands 
D) east coast of North America

Question 9

In the figure,the stress on block 'X' is ________.

Accepted Answer

A) shear 
B) folding 
C) tensional 
D) compressional

Question 10

Which letter in the figure above corresponds to a "syncline"?

Accepted Answer

The answer of Which letter in the figure above corresponds...

Question 11

When the hinge line of a fold is not horizontal the fold is said to ________.

Accepted Answer

The answer of When the hinge line of a fold...

Question 12

The Rocky Mountains of western North America were produced in an orogeny called the ________.

Accepted Answer

A) Absaroka orogeny 
B) Laurentide orogeny 
C) Uinta orogeny 
D) Laramide orogeny

Question 13

The Himalayas and Tibet are the archetypical example of a(n)________ mountain belt.

Accepted Answer

A) Andean 
B) continental rift 
C) transform 
D) collisional

Question 14

In the figure,the stress on block 'Z' is ________.

Accepted Answer

A) shear 
B) folding 
C) tensional 
D) compressional

Question 15

The Appalachian Mountains may have once been as lofty as the Himalayan-Tibetan Mountain belt is today.Why are they not this high now?

Accepted Answer

A) They developed a dense crustal root following collision,and isostasy forced them to sink to their present elevation. 
B) They formed long ago,and erosion has beveled them to their present low elevation. 
C) The mountains cooled following the collision,which increased the density of the of the rocks by cooling,and isostasy forced the mountains to sink. 
D) Opening of the North Atlantic Ocean converted lithosphere to asthenosphere beneath eastern North America,forcing eastern North America to sink to low elevations.

Question 16

Fractures in rock with no conspicuous offset are called ________.

Accepted Answer

The answer of Fractures in rock with no conspicuous offset...

Question 17

Large circular downwarped structures are called ________.

Accepted Answer

A) anticlines 
B) synclines 
C) basins 
D) domes

Exam 10: Crustal Deformation and Mountain Building

The Appalachians and Himalaya are a classic collisional mountain belts yet the elevation of the Appalachians mountains is a tiny fraction of the lofty Himalaya.Why are these two collisional mountain belts so different?

Most active faults pose a risk to society because they can potentially produce ________.

Use this figure for the following questions: The figure above shows a popular area for North American tourists in winter,the Caribbean region.Match the term to the letter on the Figure. -Forearc Basin

________

Use this figure for the following questions: The figure above shows a popular area for North American tourists in winter,the Caribbean region.Match the term to the letter on the Figure. -Island arc

Island arcs and Andean type mountains are both examples of mountains formed by ________.

A good example of a present-day,passive continental margin is the ________.

In the figure,the stress on block 'X' is ________.

Which letter in the figure above corresponds to a "syncline"?

When the hinge line of a fold is not horizontal the fold is said to ________.

The Rocky Mountains of western North America were produced in an orogeny called the ________.

The Himalayas and Tibet are the archetypical example of a(n) ________ mountain belt.

In the figure,the stress on block 'Z' is ________.

The Appalachian Mountains may have once been as lofty as the Himalayan-Tibetan Mountain belt is today.Why are they not this high now?

Fractures in rock with no conspicuous offset are called ________.

Large circular downwarped structures are called ________.