What factors affect mechanical weathering?

What are 4 factors that affect weathering?

Factors affecting weathering

  • rock strength/hardness.
  • mineral and chemical composition.
  • colour.
  • rock texture.
  • rock structure.

What are five causes of mechanical weathering?

The main causes of mechanical weathering are water, ice, salt/mineral crystals, the release of pressure, extreme temperatures, wind, and even the actions of plants and animals.

What factors affect weathering and weathering?

There are two factors that play in weathering, viz. Temperature and Precipitation. Warm climates affect by chemical weathering while cold climates affect by physical weathering (particularly by frost action). … At higher temperatures chemical reactions are likely to take place faster.

What are the factors that causes weathering?

Plant and animal life, atmosphere and water are the major causes of weathering. Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice. There are two types of weathering: mechanical and chemical.

What are 7 factors that affect mechanical weathering?

What Factors Cause Mechanical Weathering?

  • Exfoliation or Unloading. As upper rock portions erode, underlying rocks expand. …
  • Thermal Expansion. Repeated heating and cooling of some rock types can cause rocks to stress and break, resulting in weathering and erosion. …
  • Organic Activity. …
  • Frost Wedging. …
  • Crystal Growth.
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What are the factors that are common in mechanical and chemical weathering?

Mechanical/physical weathering – physical disintegration of a rock into smaller fragments, each with the same properties as the original. Occurs mainly by temperature and pressure changes. Chemical weathering – process by which the internal structure of a mineral is altered by the addition or removal of elements.