The earth’s crust
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The earth’s crust

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The earth’s crust The earth’s crust Presentation Transcript

  • The Earth’s Crust
  • Introduction
    • There are four major Earth zones
      • Three are solid and one is liquid
        • Crust – solid
        • Mantle – solid
        • Outer core – liquid
        • Inner core solid
  • The Crust
    • The crustal thickness
      • In comparison to the other parts is very thin
      • The average thickness of the continental (land) crust is thicker than the oceanic crust
    Composed of mafic or basalt Composed of low density felsic granite Not as thick Thicker Oceanic Crust Continental (land) crust
  • The Mantle
    • Where the crust rests
    • Makes up most volume of the earth
    • The boundary between the crust and the mantle is called the Mohovoricic Discontunity or aka MOHO
  • Outer core
    • Below the mantle
    • Made out of liquid
    • Evidence of seismic waves proves that it is made up of metallic
  • Inner core
    • Hottest part of earth
    • Made of solid
  • Interior Characteristics
    • As you go deeper in the Earth the more density, the higher the temperature, and the more pressure you will encounter