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?

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.

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 ________.