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Mountain Building
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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
ID
27780
Card Set
Mountain Building
Description
Test
Updated
2010-07-23T19:29:19Z
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