Chapter 5 The Changing Surface of Earth LANDFORMS Basic types: 1.Plains 2.Plateaus 3.Mountains

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) marshes, swamps, low hills Gulf coastal plain and Atlantic coastal plain Atlantic coastal plain

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

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

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

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

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

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

Fault-block continued

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

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