Introduction: Theory of Plate Tectonics
4600000000 Years Old! <ul><li>Difficult to fathom as our life spans only 80 </li></ul><ul><li>Simplified history of Earth ...
<ul><li>Internal Structure of the Earth </li></ul>Crust Sima-Oceanic Sial-Continental
Internal Structure of the Earth Below the Crust is the Mantle, which is relatively rigid!  Asthenosphere is part of the Ma...
Theory of Plate Tectonics Alfred Wegener’s 1915 drawing of Pangaea
Continental Drift
Major Plates
How do Plates Move?
Good Fit What is some Evidence to support his Theory
Rocks & Mountains
Fossils
Sea Floor Spreading
Age of the Sea Floor
Evidence for the Theory <ul><li>Continental shelves seem to fit together </li></ul><ul><li>Rock units and mountain ranges ...
Why do we Care? <ul><li>Curiosity </li></ul><ul><li>Explain landforms </li></ul><ul><li>Find valuable minerals </li></ul><...
Plate Boundaries Where the Action Is <ul><li>Where new land is created </li></ul><ul><li>Where most the most interesting l...
Earth Quakes and Volcanoes
What Happens at Plate Boundaries?
Subduction Boundary Ocean to Ocean
Satsuma Iwojima  – Cinder Cone Volcano , Japan
Subduction Boundary Ocean to Continent
Mt. Rainer, Washington State
Subduction Boundary Continent to Continent
Sagarmatha - Himalayas
Divergent Boundary
Ocean Ridges
East African  Rift Valley
Collision Boundary
Eastern Sierra Fold Mountains
Transform Boundary
San Andreas Fault - California
 
 
Hot Spots
Haleakula Crater, Maui Hot Spot Volcano
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Plate Tectonics Intro

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Plate Tectonics Intro

  1. 1. Introduction: Theory of Plate Tectonics
  2. 2. 4600000000 Years Old! <ul><li>Difficult to fathom as our life spans only 80 </li></ul><ul><li>Simplified history of Earth – Waugh pg. 9 </li></ul><ul><li>Oldest rocks are ~ 4 billion years old </li></ul><ul><li>Found in the Northwest Territories </li></ul>
  3. 3. <ul><li>Internal Structure of the Earth </li></ul>Crust Sima-Oceanic Sial-Continental
  4. 4. Internal Structure of the Earth Below the Crust is the Mantle, which is relatively rigid! Asthenosphere is part of the Mantle, that semi molten Confused yet…
  5. 5. Theory of Plate Tectonics Alfred Wegener’s 1915 drawing of Pangaea
  6. 6. Continental Drift
  7. 7. Major Plates
  8. 8. How do Plates Move?
  9. 9. Good Fit What is some Evidence to support his Theory
  10. 10. Rocks & Mountains
  11. 11. Fossils
  12. 12. Sea Floor Spreading
  13. 13. Age of the Sea Floor
  14. 14. Evidence for the Theory <ul><li>Continental shelves seem to fit together </li></ul><ul><li>Rock units and mountain ranges fit Pangaea </li></ul><ul><li>Fossil types fit Pangaea </li></ul><ul><li>Ocean research uncovered sea floor spreading </li></ul><ul><li>Radio-geology allowed us to date the age of rocks </li></ul><ul><li>Polarity of Rocks-Magnetic Evidence </li></ul>
  15. 15. Why do we Care? <ul><li>Curiosity </li></ul><ul><li>Explain landforms </li></ul><ul><li>Find valuable minerals </li></ul><ul><li>Explain and predict potential hazards </li></ul>
  16. 16. Plate Boundaries Where the Action Is <ul><li>Where new land is created </li></ul><ul><li>Where most the most interesting landforms are found </li></ul><ul><li>Where most Earthquakes & Volcanoes occur </li></ul>
  17. 17. Earth Quakes and Volcanoes
  18. 18. What Happens at Plate Boundaries?
  19. 19. Subduction Boundary Ocean to Ocean
  20. 20. Satsuma Iwojima – Cinder Cone Volcano , Japan
  21. 21. Subduction Boundary Ocean to Continent
  22. 22. Mt. Rainer, Washington State
  23. 23. Subduction Boundary Continent to Continent
  24. 24. Sagarmatha - Himalayas
  25. 25. Divergent Boundary
  26. 26. Ocean Ridges
  27. 27. East African Rift Valley
  28. 28. Collision Boundary
  29. 29. Eastern Sierra Fold Mountains
  30. 30. Transform Boundary
  31. 31. San Andreas Fault - California
  32. 34. Hot Spots
  33. 35. Haleakula Crater, Maui Hot Spot Volcano

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