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Power point 1

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  • 1. Plate Tectonics
    Casey Ferranti
    Central Michigan University
    EDU 290: Technology in Education
  • 2.
    • Alfred Wegener’s hypothesis
    • 3. The continents were once a single landmass
    • 4. He called this landmass Pangaea
    Continental Drift
  • 5.
    • Continents fit together like pieces of a puzzle
    • 6. Two million years ago Pangaea broke apart
    • 7. The continents slowly drifted to their current locations
  • PangaeaThe Supercontinent
    http://wordrogue.com/wp-content/uploads/2010/03/pangaea1.jpg
  • 8. Present Day
    http://www.flickr.com/photos/europeanspaceagency/5017629700/
  • 9. Wegener’s ideas evolved into
    The Theory of Plate Tectonics
  • 10.
    • Earth is made up of plates
    • 11. Plates float on the asthenosphere
    • 12. Made of molten rock
    • 13. Flows like a liquid
    • 14. Results in constant motion
  • Three Types of Plate Boundaries
  • 15. Convergent Boundaries
    Divergent Boundaries
    Transform Fault Boundaries
  • 16.
    • Two plates move towards each other
    Convergent Boundaries
    http://www.nasa.gov/audience/forstudents/5-8/features/F_Earth_Has_Faults.html
  • 17.
    • Two plates move apart
    Divergent Boundaries
    http://www.nasa.gov/audience/forstudents/5-8/features/F_Earth_Has_Faults.html
  • 18. http://www.gweaver.net/techhigh/projects/period1_2/Yellowstone/Plate%20Tectonics.html
    Transform Fault Boundaries
    • Two plates slip and slide past each other
  • Plate Interactions
  • 19.
    • Neither plate submerges
    • 20. Collision rumples the Earth’s surface
    • 21. Produces mountain ranges
    Continental-Continental Convergence
  • 22. Himalaya Mountains
    http://www.flickr.com/photos/dainismatisons/3488357818/
  • 23.
    • The denser oceanic plate will sink
    • 24. Results in volcanic activity
    Oceanic-Continental Convergence
    http://tmp.kiwix.org:4201/A/Plate_tectonics.html
  • 25.
    • One plate usually submerges
    • 26. Results in an oceanic trench
    Oceanic-Oceanic Convergence
  • 27. Mariana Trench
    http://unheardnomore.blogspot.com/2010/02/hearing-on-marianas-trench-marine.html
  • 28.
    • When oceanic plates separate molten rock from beneath fills the gap
    • 29. Creates new ocean floor
    Oceanic-Oceanic Divergence
  • 30. http://www.passmyexams.co.uk/GCSE/physics/plate_tectonics.html
    This phenomenon is called
    Seafloor Spreading
  • 31.
    • The land separates
    • 32. Surrounding water fills the space
    • 33. Creates a new ocean basin
    Continental-Continental Divergence
  • 34. The End
  • 35. Plate Tectonics
    http://www.cotf.edu/ete/modules/msese/earthsysflr/plates1.html
    Continental Drift and Plate-Tectonics Theory
    http://www.infoplease.com/ipa/A0001765.html
    Plate Tectonics
    http://www.platetectonics.com/book/page_5.asp
    References

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