Factors Affecting Weathering Processes

Factors Affecting Weathering Processes
••• bpperry/iStock/GettyImages

The breakdown and alteration of rocks and minerals is known as weathering. Weathering takes place at or near the Earth’s surface. Weathering is the first step in other geomorphic and biogeochemical processes. Weathering also contributes to a major source of sediments for erosion and deposition. In addition, weathering contributes to the formation of soil because it provides mineral particles like sand, silt, and clay.

Products of Weathering

Weathering can result in the complete loss of particular atoms or compounds from the weathered surface. Weathering can lead to the addition of specific atoms or compounds to the weathered surface. Weathering of rocks and minerals can breakdown one mass into two or more masses with no chemical change in the mineral or rock.

Physical or Mechanical

Physical or mechanical weathering is the breakdown of a substance by disintegration. Frost wedging occurs when there is an alternation between freezing and thawing of moisture in the openings or cracks or rock which results in the breakdown of the rock. Unloading or exfoliation is the erosion of upper rock portions which cause underlying rocks to expand resulting in cracking and peeling. Organic activity is the activity of plant and burrowing animals that can cause a rock material to disintegrate.

Chemical

Chemical weathering is the breakdown of a substance by decomposition, thus resulting in a formation of new mineral matter. Chemical processing can result from a number of different processes. The kinds of chemical processing include:

  • hydrolysis
  • solution
  • oxidation
  • reduction
  • hydration
  • carbonation

The chemical weathering process is most affected by the climate, because climatic conditions control the rate of weathering.

Factors Affecting

One factor that affects weathering is the total surface area of mineral or rock; the processes of weathering increases proportionately with the amount of open space at the surface of the rock and extend through the rock. Climate is another factor that affects the weathering process. Composition of rock or mineral substance can also affect the process of weathering. The final element that affects weathering is time.

Related Articles

What Factors Cause Mechanical Weathering?
How Does Weathering and Temperature Affect Rocks?
What Factors Determine the Rate of Weathering?
What Are the Properties of Metamorphic Rocks?
Weathering Effects
How Does Weathering Happen?
The Difference Between Metaconglomerate & Conglomerate
5 Types of Mechanical Weathering
What Is Silicate Weathering?
The Effects of Physical Weathering
How Does Climate Affect the Rate of Weathering?
What Is Biological Weathering?
How to Find the Number of Moles Needed to React
How Does Plate Tectonics Affect the Rock Cycle?
The Effect of Freezing & Thawing on Rock
How to Calculate Mole Percent
Definition of Chemical Weathering
Definition of Weathering of Rocks
Elements of an Ecosystem
What Is Deformation in Earth Science?

Dont Go!

We Have More Great Sciencing Articles!