Outer Layers of the Earth

1
Outer Layers of the Earth

• Crust
• continental
• ocean
• Lithosphere
• Asthenosphere

2
Ocean Depth Speed of Wave 23,000 feet 535
mph 13,200 ft 443 mph 6,336 ft 313 mph 635
ft 99 mph 184 ft. 49 mph 33 ft 22 mph As
each wave slows down, it compresses its
wavelength and stands taller until it topples.
3
Initial Sequential Landforms

• Initial landforms are produced directly by
  volcanic and tectonic forces
• Volcanoes and lava flows
• Rift valleys, elevated mountains
• Sequential landforms are produced by denudation
  which lowers the earths surface
• The shape of the earths surface is the result of
  the balance of power between these two sets of
  forces

4
Plate Tectonics
http//pubs.usgs.gov/publications/text/dynamic.htm
lanchor19309449
5
Cross Sections