Describe the processes involved in chemical weathering.

Solution

Chemical weathering is achieved through following four processes :

1. Oxidation : In it the atmospheric oxygen combines with minerals of rocks. With the result, the rocks get rusted, as, iron is rusted due to the presence of air and water. Original colour changes into red, yellow or brown. The rock begins to decay and becomes a powdered dust.

2. Hydration : The chemical reaction of water with aluminium bearing minerals detaches the outer shell of such rocks through the process of hydration. Feldspar is reduced to kaolin through hydration.

3. Carbonation : Rainwater mixed with carbon dioxide is slightly acidic. It dissolves limestone, chalk and marble rocks.

4. Solution : Some of the minerals like rock salt and gypsum are dissolved in water. These minerals are dissolved in solution from the rocks.

Some More Questions From Geomorphic Processes Chapter

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Geomorphic Processes

Describe the processes involved in chemical weathering.

Some More Questions From Geomorphic Processes Chapter

Name the primary factors responsible for the development of soils.

How many essential elements are required by plants ?

How is young soil distinguished from mature soil ? Describe.

What external forces of gradation take place ?

Describe chemical weathering.

What is leaching ?

How is humus formed ?

State the physical properties of soil

Name the chemical properties of soil.

What is weathering ?

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