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Active and Passive Margins

Active and Passive Margins

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Active and Passive Margins

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  1. Active and Passive Margins

  2. Not always a plain sea mounts guyots (gee-ohs) ridges and trenches Deep-Sea Floor

  3. Hydrothermal Vents

  4. Hydrothermal Vents

  5. Composition of Sea Water

  6. Weathering and Vents

  7. Temperature

  8. Temperature

  9. Reds and oranges within first 10 m Photosynthesis not possible beyond 200 m (usually much less) No light beyond 1000m Transparency

  10. Pressure