Fichas
Coastal Erosion
Fichas del conjunto (22)
- 1ReliefThe shape of the land
- 2WavelengthThe length between to wave crests/troughs
- 3Wave heightThe length between the wave crest and trough
- 4Wave frequencyHow many crests go past a certain fixed point
- 5CrestsThe top of the wave
- 6TroughThe bottom of the wave
- 7FetchThe distance the wind blows across the water
- 8weatheringwhen rocks are broken down in one place
- 9Mass MovementThe downhill movement of weathered material under the force of gravity. The speed can vary considerably.
- 10Mechanical WeatheringThe disintegrations of rocks. When this happens, piles of rock fragments called 'scree' can found at the foot of a cliff.
- 11Chemical WeatheringCaused by chemical changes.
- 12Biological WeatheringDue to the action of flora and fauna.
- 13SolutionThe dissolving of soluble chemicals in rocks such as limestone.
- 14CorrasionFragments of rock are picked up by the sea and hit against the cliff. The rocks
scrape and gouge at the cliff to erode the rock. - 15Hydraulic PowerThis is the power of the waves as they smash onto a cliff. Trapped air is forced into the holes and cracks in the rock, eventually causing the rock to break apart. The explosive force of trapping the air in the rock is called 'cavitation'.
- 16AbrasionThis is the 'sandpapering' effect of the pebbles grinding over a rocky platform causing it to become smooth.
- 17AttritionRock fragments carried by the sea knock against one another causing them to become smaller and more rounded.
- 18Suspensionparticles carried (suspended) within the water.
- 19Tractionlarge pebbles rolled along the seabed
- 20Saltationa 'hopping' or 'bouncing' motion of particles too heavy to be suspended
- 21Solutiondissolved chemicals often derived from limestone or chalk. (like erosion solution).
- 22Longshore driftThe movement of sediment on a beach when waves approach at an angle, moving the sediment along the beach in a 'zigzag' pattern.
Información
- Descripción
- Year 10 Geography Fichas sobre Coastal Erosion, creado por Isabella Aitchison el 20/05/2017.
- Creado por
- Isabella Aitchison
- Visitas
- 2
- Valoración