Coastal Erosion and Deposition Coastal Erosion Coastal erosion
- Slides: 15
Coastal Erosion and Deposition
• Coastal Erosion: Coastal erosion is the wearing away of land the removal of beach or dune sediments by wave action, tidal currents, wave currents, drainage or high winds Coastal Deposition: Coastal deposition is the laying down of material on the coast by the sea. It occurs when waves lose energy or when large inputs of sediment are made into the coastal system
One Year of Coastal Erosion/Cliff Collapse • https: //www. youtube. com/watch? v=Ch. EHQUMEk. Xw&playnext=1&list=PLE 5 A 4 DFAFD 2 FCBC 5 E • https: //www. youtube. com/watch? v=ITv 6 g. SUm. Tjc
Erosional and depositional landforms of coastal areas are the result of the action of ocean waves. Erosional Landforms Sea Cliffs Wave-cut Notches Caves Sea stacks Sea arches Depositional landforms Beaches Barrier Spit Baymouth Bar Lagoon Tombolo
Cliff A tall, steep rock face, formed by the undercutting action of the sea.
Wave Cut Notch A rock recess at the foot of a sea cliff where the energy of waves is concentrated
Caves form in more erosive sediment when the rock does not fully collapse in a deeply-notched environment
Arch A sea arch is a natural opening eroded out of a cliff face by marine processes.
Stack a pillar like mass of rock detached by wave action from a cliff-lined shore and surrounded by water.
Depositional Landforms • Littoral Drift: the drifting of sediments, especially marine sediments, in patterns parallel to the contours of a beach, due to the action of waves and currents.
Barrier Spit • A barrier of sand created by littoral drift joined at one of its ends to the mainland.
Baymouth Bar • If the spit grows to completely block an embayment, it is called a bay barrier or baymouth bar.
Lagoon • A lagoon is a body of water behind the barrier.
A tombolo occurs when sediment deposits connect the shoreline with an offshore sea stack or island
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- Longshore current
- How does erosion affect edwards plateau
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- Table
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- Weathering erosion and deposition
- What is deposition? *
- Agents of erosion
- Diagram of erosion and deposition
- Groundwater erosion and deposition
- Agents of soil erosion
- Lesson outline the erosion-deposition process answer key