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Chapter 12

Chapter 12. Coasts. Chapter Outline. 12.1: Coasts are shaped by marine and terrestrial processes 12.2: Erosion Coasts and Processes 12.3: Depositional Coasts and Beaches 12.4: Large Scale Features of Depositional Coasts 12.5: Biological Activity and Coasts 12.6: Estuaries.

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Chapter 12

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  1. Chapter 12 Coasts

  2. Chapter Outline • 12.1: Coasts are shaped by marine and terrestrial processes • 12.2: Erosion Coasts and Processes • 12.3: Depositional Coasts and Beaches • 12.4: Large Scale Features of Depositional Coasts • 12.5: Biological Activity and Coasts • 12.6: Estuaries

  3. Coasts are shaped by Marine and Terrestrial Activity

  4. Long-term Sea Level Changes Increased Temp = Increased Volume T = V

  5. Erosional vs. Depositional Coasts

  6. Low-Energy Coast vs. High-Energy Coast

  7. Erosional Coast Features

  8. Sea Cliffs– Corsica, France

  9. Sea Caves

  10. Wave-cut Platform

  11. Blow Holes http://www.youtube.com/watch?v=6ECAUmgQJ4w

  12. Beaches are most common Depositional Coast

  13. Broad vs. Steep Beach—Particle Size

  14. Structure of a Beach

  15. Longshore Drift

  16. Rip Currents

  17. http://www.youtube.com/watch?v=Ujx4d8jyzK0

  18. Large-Scale Features of Depositional Coasts

  19. Sand Spit

  20. Bay Mouth Bar…almost

  21. Barrier Islands

  22. Coral Reefs—Fringing Reef

  23. Coral Reefs—Barrier Reefs

  24. Coral Reefs—Atoll Reefs

  25. Estuaries

  26. Chesapeake Bay—Drowned River Mouth

  27. Straight of Juan de Fuca—Fjord Estuary

  28. Albemarle Sound—Bar Built Estuary

  29. Tomales Bay—Tectonic Estuary

  30. Estuary Categories

  31. Our “Local” Estuaries • Klamath River • Smith River • Chetco River • Rogue River • Yaquina Bay

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