COASTS and OCEANS (Chapter 20) - Lecture Outline
Last updated: 04/27/07
Basic considerations
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interaction with climate system | |
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waves and tides are key processes | |
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ocean basin components |
1. Oceans - generalizations
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71% coverage | |
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exploration tools | |
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topography of the ocean floor | |
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key to plate tectonics |
2. Anatomy of the ocean floor
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continental shelf
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continental slope | |||||
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continental rise | |||||
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abyssal plain | |||||
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seamounts | |||||
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mid-ocean ridge |
3. Turbidity currents
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develops in slope | |
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rapid | |
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turbidite sediments - graded beds |
4. Deep sea sedimentation
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pelagic sediments | |
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foram oozes | |
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siliceous oozes | |
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carbon compensation depth |
5. Edge of the sea
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Coastlines | |
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coasts | |
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waves and shore interaction |
6. Pattern of wave motion
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circular motion away from shore | |||||
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shallow water interactions | |||||
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surf zone | |||||
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swash-backwash zones | |||||
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wave refraction
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longshore drift | |||||
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longshore current | |||||
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rip current |
7. Tides
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Earth-moon system
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Earth-sun system
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Flood tide | |||||||
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Ebb tide |
8. Shorelines
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Erosion
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Deposition
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9. Hurricanes
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generation of hurricanes | |
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hurricane intensity | |
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storm surge |