Lo2 plates&oceanfloor

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Helgers, ESC 101

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Lo2 plates&oceanfloor

  1. 1. Earth Science Lecture Outline #2: Earth’s Oceans, Plate Tectonics and Earth's Ocean Floor
  2. 2. The oceans of Earth
  3. 3. Earth’s Oceans
  4. 4. Views of the Northern and Southern hemispheres
  5. 5. Plate Tectonics
  6. 6. Earth’s Tectonic Plates
  7. 7. Mesosaurus Fossil Remnants
  8. 8. Matching Mountain Ranges
  9. 9. Evidence of Glaciation
  10. 10. Convection
  11. 11. Diverging Plates
  12. 12. Creation of a New Ocean Basin Atlantic Ocean following Pangaea
  13. 13. Earth’s Diverging Boundaries
  14. 14. Africa’s Red Sea
  15. 15. Convergent Boundaries
  16. 16. Oceanic-Oceanic Convergence
  17. 17. Oceanic-Continental Convergence
  18. 18. Continental-Continental Convergence
  19. 19. Origin of the Himalaya’s
  20. 20. Transform Faults
  21. 21. “Hot Spots”
  22. 22. 200 million years ago
  23. 23. Ocean Floor
  24. 24. Echo sounder
  25. 25. Multibeam sonar
  26. 26. Mapping the ocean floor Three major topographic units of the ocean floor • Continental margins • Ocean basin floor • Mid-ocean ridge
  27. 27. Continental Passive Margins
  28. 28. Continental Slope with Submarine Canyons
  29. 29. Submarine Canyon
  30. 30. Abyssal (Deep Sea) Fans
  31. 31. Turbidity Current
  32. 32. Deep Ocean Trenches
  33. 33. Loihi
  34. 34. Seamounts and Guyots
  35. 35. Development of a Coral Atoll
  36. 36. Bora Bora
  37. 37. Oceanic Ridge
  38. 38. Hydrothermal Vents
  39. 39. Mid Ocean Ridge
  40. 40. Major topographic divisions of the North Atlantic Ocean
  41. 41. Ocean Floor Sediments • Terrigenous Sediment
  42. 42. • Biogenous Sediments
  43. 43. • Hydrogenous Sediment
  44. 44. Turbidity currents
  45. 45. Features of a passive continental margin
  46. 46. An active continental margin
  47. 47. Distribution of marine sediments
  48. 48. End

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