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Marine Provinces

Marine Provinces. Shelf – slope – rise Submarine canyons Abyssal plain Seamounts and guyots Mid-ocean ridges Fracture zones, transform faults Hydrothermal vents Deep sea trenches. Shelf, slope, rise. Note variable width of shelf and location of submarine canyons.

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Marine Provinces

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  1. Marine Provinces

  2. Shelf – slope – rise • Submarine canyons • Abyssal plain • Seamounts and guyots • Mid-ocean ridges • Fracture zones, transform faults • Hydrothermal vents • Deep sea trenches

  3. Shelf, slope, rise

  4. Note variable width of shelf and location of submarine canyons

  5. Getting sediment down to the continental rise

  6. Submarine cable Breaks in canyon

  7. Sediment pouring down canyon

  8. Found on abyssal plains

  9. Location of mid-ocean ridges Note fracture zones and transform faults

  10. Formation of hydrothermal vents

  11. Black smoker

  12. ALVIN

  13. Tube worms at smoker

  14. Ridges, transform faults, fracture zones • Transform faults offset ridge segments • Fracture zones are extensions of transform faults • Draw relationships and relative motions

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

  16. Location of trenches

  17. Continental – oceanic convergent plate boundary Many volcanoes parallel trenches Ring of Fire around Pacific

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