Layers of the Earth
Plate Motion
Plate Boundary Features
Regions of VA
Misc.
100
What layer of the earth is liquid metal?
Outer cor
100
convergent (collision)
100
What is created at a continental collision?
Mountains
100
1
Coastal plain
100
What type of crust is the most dense?
Oceanic
200
What layer of the earth has convection currents?
Mantle
200
convergent (subduction)
200
What is created at oceanic-continental subduction?
volcanoes
200
2
Piedmont
200
Where will you find the youngest oceanic crust?
in the mid ocean ridge
300
What layer of the earth is broken up into tectonic plates?
Lithosphere
300
divergent
300
What is created at transform boundaries?
earthquakes
300
3
Blue Ridge
300
Where will you find the oldest oceanic crust?
Away from the mid ocean ridge
400
What layer of the earth do the tectonic plates move upon?
Asthenosphere
400
transform
400
What is created at oceanic-oceanic divergent boundaries?
mid-ocean ridge
400
4
Valley and Ridge
400
How do we know what the layers of the earth look like?
seismic data (earthquake p and s waves)
500
The inside of the earth is extremely hot. Why is the inner core solid?
intense pressure
500
What is the break in the earth called (at transform boundaries)
fault
500
What boundary recycles oceanic crust, and what boundary creates oceanic crust?
subduction, divergent
500
5
Appalachian Plateau
500
Describe the geologic difference between the east and west coast of the united states.
east: collision with Africa created mountains, not on a plate boundary
west: transform boundary means constant earthquakes