Chapter 5 The Changing Surface of Earth

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Chapter 5 The Changing Surface of Earth
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1. Plains Large, relatively flat areas covering
much of the country
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Coastal Plains
plains along coasts
called lowlands because of low elevation (height
above/below sea level)
marshes, swamps, low hills
Gulf coastal plain and  Atlantic coastal plain
Atlantic coastal plain
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Interior Plains
- Great Plains - Central Lowland


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Plateaus
relatively flat, raised areas (raised by
geologic forces)
easy to tell from surrounding area they are
clearly higher in elevation
Colorado Plateau
Colorado Plateau from the Air
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Mountains
Rise high above surrounding area.
We will look at Four types
1. Folded  2. Upwarped  3. Fault-block  4.
Volcanic
Long's Peak, Colorado
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Folded - Mountains

Appalachian Mts.

layers of rock that have been pushed and caused
to fold
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Upwarped




pushed straight up by deep forces from within
Rocky Mts.
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Fault-block
Tilted and pushed, separated by faults (cracks
along which rock moves)
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Fault-block continued
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Volcanic
Molten rock is forced through the crust to the
surface, and builds up
Ash blows through onto the surface and builds up
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Volcanic continued
Sunset Crater, Arizona - a cinder cone
Devil's Tower, Wyo., a Volcanic Neck