The Earth: Everyone

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The Earth Everyones favorite nested sphere
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Earths magnetic field is probably generated by
the motion of the highly conducting liquid Outer
Core
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Motion in the Outer Core
From Arnou
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Mantle Convection and Plumes

• Convection at ocean ridges cools the mantle
• Mantle plumes (hot spots) cool the liquid core
• This means
• The function of plate tectonics is to cool the
  mantle!
• The function of plumes is to cool the core!

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Atmosphere
From NASA
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Created by Nicolas Barth2007Geology
114AUniversity of California, Santa BarbaraSome
images herein borrowed from websites have not
been credited