PHYSICAL LANDSCAPES IN THE UK

UK Physical Landscape
1. RELIEF = the height, steepness +shape of the landscape. = determained by geology
2. LANDSCAPE = result from the interaction between natural / physical factors
3. IN THE UK = N/W = upland more resistnat rock. = S/E = lowland weaker rocks.
Coastal Landscapes in the UK
1. Constructive / Destructive
  1. CONSTRUCTIVE WAVE = formed by a storm often hundreds of km away. common in summer
  2. DESTRUCTIVE WAVE = formed by local storms close to the coast. common in winter
2. How a wave is formed
3. WEATHERING = the weakening / decay of rock due to the actions of weather, plants and animals
  1. MECHANICAL (physical) = the disintegration of rock
    1. eg: Freeze-thaw
  2. CHEMICAL = caused by chemical changes
    1. eg: Carbonation
  3. BIOLOGICAL = caused by the actions of flora and fauna
    1. eg. plants roots grow in rocks / animals burrow into weak rocks
  4. TYPES OF MASS MOVEMENT = downward movement (sliding) of weathered material and rock
    2. Deposition - occurs when water slows down and waves lose their energy
4. COASTAL EROSION
  1. Solution - Dissolving of soluble chemicals in rock
  2. Corrasion - rocks fragments picked up by the sea are thrown at the cliff. they scrape and wear away the rock
  3. Abrasion - the "sandpapering" effect of pebbles grinding over a rocky plateform
  4. Attrition - rocks fragments carried by the sea knock against each other becoming smaller / more rounded
  5. Hydraulic action - the power of the waves as they hit a cliff. trapped air is forced into cracks in the rock, eventually causing it to break up
  6. Erosion Landforms
    1. Factor 1 = ROCK TYPE - some rocks are harder / softer than other so easier to erode
    2. Factor 2 = GEOLOGICAL STRUCTURE - the way the rocks has been folded / tilted. Faults (cracks) form lines of weakness.
5. Transportation
  2. Longshore Drift - the movement depends on the direction that waves approch the coast sue to prevailing wind direction
  3. Deposition Landforms
    1. 1. SANDY beeches - mainly found in sheltered bays and are created by conservative waves
      2. Along high-energy coast sand is washed away leaving behind a PEBBLE beech
River Landscapes in the UK

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PHYSICAL LANDSCAPES IN THE UK

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	Erstellt von Kelsey Clifford vor mehr als 6 Jahre