Erosion vs. Weathering

Erosion
Weathering

Weathering and erosion are geological processes that act together to shape the surface of the Earth.

Erosion is displacement of solids (soil, mud, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down-slope movement in response to gravity or by living organisms.

Weathering is the decomposition of rocks, soils and their minerals through direct contact with the Earth's atmosphere.

Comparison chart

Erosion

Weathering

Definition Erosion is displacement of solids (soil, mud, rock and other particles) usually by the agents of currents such as, wind, water, or ice Weathering is the decomposition of rocks, soils and their minerals through direct contact with the Earth's atmosphere.
Types 5 - Water,Ice,Wind,Gravity and Thermal 3 - Physical, Chemical and Biological
Resultant Small particles of rock, soil. Small particles of rocks, soil
Movement Movement of eroded material occurs Movement of weathered material does not occur.
External causes Wind, water, ice, humans etc. Atmospheric conditions like air, pressure etc.
Gardens/Fields Breakdown of the top soil causes change in health and growth of plants. Wind, Rain, Water from garden hoses, freezing temperatures, etc.

Contents: Erosion vs Weathering

Factors

Erosion occurs because of factors like wind, water, ice, human activities like deforestation etc. Weathering, on the other hand is caused by contact with the earth's atmosphere. These atmospheric conditions may be heat, pressure etc.

Movement

Erosion is caused by the movement of eroding agents while in weathering there is no movement. Weathering is caused when rocks come in contact with atmospheric conditions but there is no movement involved of either of the components.

Types

Weathering is broadly categorized as follows:

Physical or Mechanical Weathering

Mechanical weathering is the cause of the disintegration of rocks. The primary process in mechanical weathering is abrasion - the process by which clasts and other particles are reduced in size. These can further be classified in the following:

Chemical Weathering

Chemical weathering involves the change in the composition of rocks, often leading to a 'break down' in its form. This type of weathering happens over a period of time. The types of Chemical weathering are:

Types of Erosion

The various types of erosion are:

Resultants

When a rock is weathered it gets broken down in to smaller particles but stays where it was. After erosion takes place, the resulting smaller particle is transported or moved to another place. Erosion may cause the rock to break down in smaller pieces than weathering.

References

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Anonymous comments (2)

April 12, 2014, 5:09am

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