Mountain Building

What are shield areas?

When a root of an eroded mountain range is exposed on the surface
What is the name of the shield found in North America?

Canadien
What rock types are found in a shield area?
- A. Metamorphic
- B. Igneous
The rocks of shield areas are ------- in age.

Precambrian
List three characteristics of a shield areas.
- 1. Stable
- 2. Flat
- 3. Composed of precambrien rocks
The term orogency refers to:

The deformation of the crust to form mountains
Mountains form by plate:

Collision
What type of mountains are produced by horsts and grabens?

Fault block Mountains
What types of faults produduce falut block mountains?

Normal
Mountains are supported by ------

Roots
Isostasy is?

Less dense rock floating on more dense rocks
List the two types of plate collisions that form mountains
- 1. Continental- Continental
- 2. Continental- Oceanic

Author

wonton

27780

Card Set

Mountain Building

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Test

Updated

2010-07-23T19:29:19Z

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