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The Seafloor

The Seafloor. Continental margin: Shelf, slope, rise. Submarine canyons, turbidity currents. Relationships between : shelf, slope, canyons, fans, rise. Abyssal plain. Vast and flat Interrupted by Seamounts (volcanic in origin) Guyots or tablemounts (eroded islands).

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The Seafloor

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  1. The Seafloor

  2. Continental margin: Shelf, slope, rise

  3. Submarine canyons, turbidity currents Relationships between : shelf, slope, canyons, fans, rise

  4. Abyssal plain • Vast and flat • Interrupted by • Seamounts (volcanic in origin) • Guyots or tablemounts (eroded islands)

  5. Formation of guyots Found on abyssal plains

  6. Location of mid-ocean ridges

  7. Mid-ocean ridges, transform faults, fracture zones

  8. Formation of hydrothermal vents

  9. Black smoker

  10. ALVIN

  11. Tube worms at smoker

  12. Black lines = center of ridges Offsets = transform faults Long red lines = fracture zones

  13. Location of trenches

  14. Trenches

  15. A review

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