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The Earth

The Earth. Primary Atmosphere : - H, He Secondary Atmosphere : - CO 2 (90%), N, Sulfur Dioxide, H 2 O vapor. Primary Atmosphere : - H, He Secondary Atmosphere : - CO 2 (90%), N, Sulfur Dioxide, H 2 O vapor Current Atmosphere :

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The Earth

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  1. The Earth

  2. Primary Atmosphere: - H, He Secondary Atmosphere: - CO2 (90%), N, Sulfur Dioxide, H2O vapor

  3. Primary Atmosphere: - H, He Secondary Atmosphere: - CO2 (90%), N, Sulfur Dioxide, H2O vapor Current Atmosphere: - N2 (78%), O2 (21%), CO2 (0.03%), H2O vapor

  4. Geologic Features: - Mountains, Volcanoes, Craters - Erosional Features - Plate tectonics

  5. Crustal Plate Boundary Types

  6. Spreading Ridge

  7. Transform Fault

  8. Subduction Zone

  9. Spreading Ridge

  10. Subduction Zone, Andes Mtns

  11. Transform Boundary

  12. New Lava Dome - 1984

  13. New Lava dome - 2006

  14. Lassen Peak, California

  15. Mt. Rainier, Washington

  16. Mt. Pinatubo, Philipines

  17. ?

  18. The Earth’s Interior Crust, Silicate rock, 5-50 km, Solid

  19. The Earth’s Interior Mantle- Basaltic Rock, 2850 km thick, Plastic

  20. The Earth’s Interior Outer Core- Iron/Nickel, 2200 km thick, Liquid

  21. The Earth’s Interior Inner Core- Iron/Nickel, 1300 km radius, Solid

  22. The Earth’s Magnetic Field

  23. Conditions for a Planetary Magnetic Field 1. Liquid/Molten core 2. Core is electrically conducting 3. Rapid rotation

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