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Marine Provinces
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Shelf – slope – rise Abyssal plain Mid-ocean ridges Deep sea trenches
Submarine canyons Abyssal plain Seamounts and guyots Mid-ocean ridges Fracture zones, transform faults Hydrothermal vents Deep sea trenches
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Shelf, slope, rise
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Note variable width of shelf and location of submarine canyons
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Getting sediment down to the continental rise
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Submarine cable Breaks in canyon
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Sediment pouring down canyon
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Found on abyssal plains
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Location of mid-ocean ridges
Note fracture zones and transform faults
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Formation of hydrothermal vents
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Black smoker
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ALVIN
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Tube worms at smoker
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Ridges, transform faults, fracture zones
Transform faults offset ridge segments Fracture zones are extensions of transform faults Draw relationships and relative motions
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Black lines = center of ridges
Offsets = transform faults Long red lines = fracture zones
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Location of trenches
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Continental – oceanic convergent plate boundary
Many volcanoes parallel trenches Ring of Fire around Pacific
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