Weathering
Weathering
Weathering (/ˈwɛðərɪŋ/) is the process of breaking down or dissolving rocks and minerals on Earth's surface. This natural process can be caused by various factors, including water, wind, ice, and biological activity.
Etymology
The term "weathering" originates from the Old English word "wederian," which means "to expose to the weather."
Types of Weathering
There are three main types of weathering: Physical weathering, Chemical weathering, and Biological weathering.
- Physical weathering is the process of rocks breaking apart without changing their chemical composition. Examples include freeze-thaw weathering and thermal expansion.
- Chemical weathering involves the decomposition of rocks due to chemical reactions. This can occur through processes such as oxidation, hydrolysis, and carbonation.
- Biological weathering is the breakdown of rocks by living organisms, such as plants, bacteria, and fungi.
Related Terms
- Erosion is a related process that involves the movement of weathered material from one location to another.
- Sediment is the solid material that is moved and deposited in a new location by erosion.
- Geology is the scientific study of the Earth's solid materials and processes, including weathering and erosion.
See Also
External links
- Medical encyclopedia article on Weathering
- Wikipedia's article - Weathering
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