Processes of erosion and landforms

carly
Mind Map by , created over 6 years ago

Geography Mind Map on Processes of erosion and landforms, created by carly on 04/21/2013.

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carly
Created by carly over 6 years ago
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Processes of erosion and landforms
1 Weathering
1.1 Freeze thaw
1.2 Salt crystallisaton
1.3 Wetting and drying
1.4 Solution
1.5 Carbonation
1.6 Biotic weathering - roots of seaweed, acid secretions by limpets/barnacles/seagulls
2 Erosion
2.1 Corrosion
2.1.1 Hydraulic action
2.2 Abrasion
2.2.1 Attrition
3 Landforms
3.1 Cliffs - rocky faces that develop along coastlines where marine undercutting has been ongoing
3.1.1 Undercutting at base leads to wave-cut notch, collapses by fall or slumping, progressive retreat leads to wave-cut platform
3.2 Caves develop where lines of weakness are exploited, arches develop where caves erode back to back on headlands, stacks result when arch collapses
3.2.1 Stumps remain where stacks collapse
4 Landforms from rise of sea level are either from eustatic rise or local areas of subsidence
4.1 Submergence of land by an encroaching sea causes landforms such as rias and fjords
4.2 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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