Weathering
Key process that shapes the landscape
What is Weathering?
Weathering is the break down of rock in-situ.
There are 4 main types of weathering; freeze-thaw, onion-skin, biological and chemical weathering.
Freeze Thaw Weathering
Freeze Thaw
Onion Skin Weathering
Exfoliation or Onion Weathering
Biological Weathering
Plant Roots
Chemical Weathering
Water
Water weathers rock by dissolving it
Weathered Environments
Weathering contributes significantly to the formation of many different environments including coasts, but other processes are also significant.
Erosion, Transportation and Deposition
Weathering breaks up and weakens rock, erosion wears away and removes the loosened material.
Rivers, ice, the sea and the wind are all significant causes of erosion.
Erosion does not operate on its own, erosion wears the land away, transportation removes the eroded material and deposition build new landforms.
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