Weathering

Weathering refers to the process that changes solid rock into sediment. This process occurs over time due to various factors such as temperature changes, precipitation, and biological activity. Weathering is an essential part of the rock cycle, and has significant implications for various other natural processes and phenomena.

Types of Weathering

There are three main types of weathering: physical, chemical, and biological.

Physical Weathering

Physical weathering, also known as mechanical weathering, involves the breakdown of rocks and soils through direct contact with atmospheric conditions, such as heat, water, ice and pressure. This does not change the chemical composition of the rock- merely its size and shape.

Chemical Weathering

Chemical weathering involves the decomposition of rocks and minerals by changing their chemical composition. This can occur through processes such as oxidation, hydrolysis, and carbonation.

Biological Weathering

Biological weathering involves the disintegration of rocks and minerals due to the physical or chemical activity of living organisms. This can include plant roots breaking through rock, or animals burrowing into soil and rock.

Effects of Weathering

Weathering has significant effects on the landscape, soil formation, and the carbon cycle. It also plays a crucial role in erosion and sediment transport.

See Also

• Erosion
• Rock cycle
• Soil formation
• Carbon cycle

References

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