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Published byWesley Marsh Modified over 9 years ago
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Chapter 5 The Changing Surface of Earth LANDFORMS Basic types: 1.Plains 2.Plateaus 3.Mountains
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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 from Appalachian Mts. to Rocky Mts. from Gulf Plain north into Canada - Great Plains - Central Lowland
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Plateaus relatively flat, raised areas (raised by geologic forces) Colorado Plateau easy to tell from surrounding area they are clearly higher in elevation 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 layers of rock that have been pushed and caused to fold Appalachian Mts.
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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
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