class 9b coastal landforms and rivers l.
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Class 9b: Coastal landforms and rivers - PowerPoint PPT Presentation


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Class 9b: Coastal landforms and rivers. Ocean erosion. Coastal landforms from erosion. On newer, more rugged coastlines. Ocean transport. Longshore currents : waves not parallel to shore . Ocean deposition. Beaches!. Coastal deposition. On coastlines already worn down. Coastal deposition.

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coastal landforms from erosion
Coastal landforms from erosion
  • On newer, more rugged coastlines
ocean transport
Ocean transport
  • Longshore currents: waves not parallel to shore
coastal deposition
Coastal deposition
  • On coastlines already worn down
stabilizing the coast
Stabilizing the coast
  • Harbors or bays may close over, cliffs may fall
stabilizing the coast9
Stabilizing the coast
  • Unintended consequences
coral reefs
Coral reefs
  • The only organic landform
coral reefs12
Coral reefs
  • Absorb energy from waves and protect shores
fluvial basics
Fluvial basics
  • Fluvial processes: involving running water
fluvial basics14
Fluvial basics
  • Watershed: all the land that drains into a stream
fluvial erosion
Fluvial erosion
  • Amount of erosion depends on:
    • Speed of river
    • Degree of turbulence
    • Type of bedrock
fluvial transport
Fluvial transport
  • Material carried by a stream is the stream load
  • Bed load, dissolved load, or suspended load
fluvial deposition
Fluvial deposition
  • Found all along rivers; especially at mouth