coastal systems
- Created by: frostyed
- Created on: 16-10-17 13:07
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- Coastal Systems
- Closed or open system
- Closed means the sediment STAYS in the system.
- Open means that sediment can be lost or gained from outside the system
- Dynamic Equilibrium
- When the inputs of a system equal the output so no sediment is gained or lost
- Inputs
- Marine – waves, tides and currents
- Geological – rock type, structure and tectonics
- Atmospheric – climate, weather and and climate change
- People – urban planning, housing, industry, coastal management/defences, leisure
- Processes
- Deposition
- Erosion – attrition, corrasion/abrasion, hydraulic action
- Weathering – freeze-thaw, solution, salt crystallisation
- Mass Movement e.g. slumps, soil creep and slides
- Outputs
- Landforms of erosion – cracks, caves, stacks, stumps, wave-cut platforms, blowholes
- Landforms of deposition – beaches, spits, tombolos, sand dunes, salt marshes
- Sediment cells surround the uk, and are "closed" sysrtems
- Closed or open system
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