Please enable JavaScript.

Coggle requires JavaScript to display documents.

waves and the coast, physical and biological weathering are types of…

- - - - the transition zonebetween the land and the sea
    - - a long body of water curling into an arched form and breaking on the shore. They erode, transport and deposit materials
      - waves are created by winds, the wind makes friction with the sea creating a wave, this is why the power of the wave is the power of the wind, it as well depends on the length and time it has been affected by the wind, this factors are called fetch
  - - - settlement, development
    - - water depth, ecosystem
    - - wind strendth, rainfall
    - - ecosystem, river sediment
  - - - the distance between 2 successive waves
    - - distance between the through and the crest
    - - number of waves per minute
    - - the speed of the traveling wave
    - - the amount of water over which a wave has passed
    - - the movement of water up the beach
    - - the movement of water down the beach
    - - highest point of the wave
    - - lowest point of the wave
- - - - types of costal erosion
        
        hydrolic action ( wave hit wall)
        
        the sheer power of the waves repeatedly forcing water and air bubbles into cracks in the rock
        
        attrition (rock hit rock)
        
        when the sand particles and stones hit against each other and are broken into smaller particles
        
        abrasion(Rock scratch rock)
        
        when the stones in breaking waves wear against rocks
        
        solution (dissolve rock)
        
        when the salt and chemicals in the seawater dissolve away the rocks that the shoreline is made up of
  - - - physical
        
        onion skin weathering
        
        when a rock repeatedly gets heated and cooled causing it to break down
        
        freeze thaw weathering
        
        happens when rainfall gets acumulated inside rock cracks, this water then freezes and makes the crack expand. This repeated process will cause the rock to break down.
      - biological
        
        weathering that is caused by plants or animals, for example a seed falling into a crack expanding the crack as the plant grows
      - chemical
        
        a chemical reaction that changes the nature of the rock causing it to break down
  - - - landslide
        
        the downslope movement of discrete blocks of rock down a flat/linear slip plane, maintaining contact with the cliff surface throughout
      - mudslide
        
        occur when saturated soil and weak rock flow down a slope.
      - rock fall
        
        a rock fall involves fragments of rock breaking away from the cliff face, often due to freeze-thaw weathering
      - slumping
        
        Slumping is a rapid movement of a mass of earth or rock sliding along a concave surface.