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Chapter 5 The Changing Surface of Earth

LANDFORMS. Basic types: Plains Plateaus Mountains. Chapter 5 The Changing Surface of Earth. 1. Plains • Large, relatively flat areas covering much of the country. Coastal Plains. plains along coasts. called lowlands because of low elevation (height above/below sea level).

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Chapter 5 The Changing Surface of Earth

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  1. LANDFORMS • Basic types: • Plains • Plateaus • Mountains Chapter 5 The Changing Surface of Earth

  2. 1. Plains • Large, relatively flat areas covering much of the country

  3. 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

  4. from Appalachian Mts. to Rocky Mts. from Gulf Plain north into Canada Interior Plains - Great Plains - Central Lowland

  5. 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

  6. 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

  7. Folded - Mountains Appalachian Mts. layers of rock that have been pushed and caused to fold

  8. Upwarped pushed straight up by deep forces from within Rocky Mts.

  9. Fault-block Tilted and pushed, separated by faults (cracks along which rock moves)

  10. Fault-block continued

  11. Volcanic Molten rock is forced through the crust to the surface, and builds up Ash blows through onto the surface and builds up

  12. Sunset Crater, Arizona - a cinder cone Volcanic continued Devil's Tower, Wyo., a Volcanic Neck

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