Processes of erosion and landforms

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Geography Mindmap am Processes of erosion and landforms, erstellt von carly am 21/04/2013.
carly
Mindmap von carly, aktualisiert more than 1 year ago
carly
Erstellt von carly vor mehr als 11 Jahre
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Zusammenfassung der Ressource

Processes of erosion and landforms
  1. Weathering
    1. Freeze thaw
      1. Salt crystallisaton
        1. Wetting and drying
          1. Solution
            1. Carbonation
              1. Biotic weathering - roots of seaweed, acid secretions by limpets/barnacles/seagulls
              2. Erosion
                1. Corrosion
                  1. Hydraulic action
                  2. Abrasion
                    1. Attrition
                  3. Landforms
                    1. Cliffs - rocky faces that develop along coastlines where marine undercutting has been ongoing
                      1. Undercutting at base leads to wave-cut notch, collapses by fall or slumping, progressive retreat leads to wave-cut platform
                      2. Caves develop where lines of weakness are exploited, arches develop where caves erode back to back on headlands, stacks result when arch collapses
                        1. Stumps remain where stacks collapse
                      3. Landforms from rise of sea level are either from eustatic rise or local areas of subsidence
                        1. Submergence of land by an encroaching sea causes landforms such as rias and fjords
                          1. Eustatic adjustment - worldwide change in sea level. Isostatic readjustment is localised change in sea level due to changes (ice removed from land)
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