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weathering

gravestone weathering at Cassington, Oxfordshire - Click to enlarge
rock face - Click to enlarge
sedimentary rock on Jersey, Channel Islands - Click to enlarge
weathering and erosion of limestone - Click to enlarge
Click images to enlarge

Process by which exposed rocks are broken down on the spot (in situ) by the action of rain, frost, wind, and other elements of the weather. It differs from erosion in that no movement or transportion of the broken-down material takes place. Two types of weathering are recognized: physical (or mechanical) weathering and chemical weathering. They usually occur together, and are an important part of the development of landforms.

© RM 2012. Helicon Publishing is division of RM.


 
 

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