Discuss Mechannical weathering. (5Marks)
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Answered by
25
⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐
❄❄❄ WEATHERING ❄❄❄
✔ Weathering is the process of disintegration or decomposition of a rock but not its removal.
✔ The various actions of weathering are air temperature, pressure, humidity, rainfall, running water, etc.
✔ The basic transportation agents are river, glacier, wind, etc.
❄❄ MECHANICAL WEAFHERING ❄❄
➡ The mechanical weathering also known as physical weathering generally takes place due to thermal variation.
✔✔✔ PROCESSES INVOLVED ✔✔✔
⚡ EXFOLIATION - Exfoliation is the process of peeling off of the outer layer of rocks to medium-sized fragments. It is common in GRANITIC rocks and it occurs in the rocks whose mineral composition in homogeneous. It is also known as onion peeling.
⚡ GRANULAR DISINTEGRATION - The process of disintegration of rocks into smaller fragments or pieces is called granular disintegration. It is predominant in hot deserts and tropical regions. It generally occurs on those rocks whose mineral composition is heterogeneous.
⚡ BLOCK DISINTEGRATION - Well-bedded and jointed rocks of homogeneous mineral composition split along the joints or cracks, thus, breaking the rocks into rectangular blocks. This process is called block disintegration. It is predominant in high temperature regions.
⚡ FROST ACTION - In polar or high mountainous regions, water present in the cracks or joints of a rock freezes at night when temperature drops below the freezing point and exert a pressure within the rock wall because of its increased volume. Therefore, the rock tends to break into smaller fragments due to the action of ice, and this process is called frost-action.
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⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐
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❄❄❄ WEATHERING ❄❄❄
✔ Weathering is the process of disintegration or decomposition of a rock but not its removal.
✔ The various actions of weathering are air temperature, pressure, humidity, rainfall, running water, etc.
✔ The basic transportation agents are river, glacier, wind, etc.
❄❄ MECHANICAL WEAFHERING ❄❄
➡ The mechanical weathering also known as physical weathering generally takes place due to thermal variation.
✔✔✔ PROCESSES INVOLVED ✔✔✔
⚡ EXFOLIATION - Exfoliation is the process of peeling off of the outer layer of rocks to medium-sized fragments. It is common in GRANITIC rocks and it occurs in the rocks whose mineral composition in homogeneous. It is also known as onion peeling.
⚡ GRANULAR DISINTEGRATION - The process of disintegration of rocks into smaller fragments or pieces is called granular disintegration. It is predominant in hot deserts and tropical regions. It generally occurs on those rocks whose mineral composition is heterogeneous.
⚡ BLOCK DISINTEGRATION - Well-bedded and jointed rocks of homogeneous mineral composition split along the joints or cracks, thus, breaking the rocks into rectangular blocks. This process is called block disintegration. It is predominant in high temperature regions.
⚡ FROST ACTION - In polar or high mountainous regions, water present in the cracks or joints of a rock freezes at night when temperature drops below the freezing point and exert a pressure within the rock wall because of its increased volume. Therefore, the rock tends to break into smaller fragments due to the action of ice, and this process is called frost-action.
==================================
⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐
==================================
Answered by
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❤ HERE IS YOUR ANSWER ❤
The mechanical weathering also known as physical weathering generally takes place due to thermal variation.
⛔ PROCESSES INVOLVED ⛔
◼ EXFOLIATION - Exfoliation is the process of peeling off of the outer layer of rocks to medium-sized fragments. It is common in GRANITIC rocks and it occurs in the rocks whose mineral composition in homogeneous. It is also known as onion peeling.
◼ GRANULAR DISINTEGRATION - The process of disintegration of rocks into smaller fragments or pieces is called granular disintegration. It is predominant in hot deserts and tropical regions. It generally occurs on those rocks whose mineral composition is heterogeneous.
◼ BLOCK DISINTEGRATION - Well-bedded and jointed rocks of homogeneous mineral composition split along the joints or cracks, thus, breaking the rocks into rectangular blocks. This process is called block disintegration. It is predominant in high temperature regions.
◼ FROST ACTION - In polar or high mountainous regions, water present in the cracks or joints of a rock freezes at night when temperature drops below the freezing point and exert a pressure within the rock wall because of its increased volume. Therefore, the rock tends to break into smaller fragments due to the action of ice, and this process is called frost-action.
The mechanical weathering also known as physical weathering generally takes place due to thermal variation.
⛔ PROCESSES INVOLVED ⛔
◼ EXFOLIATION - Exfoliation is the process of peeling off of the outer layer of rocks to medium-sized fragments. It is common in GRANITIC rocks and it occurs in the rocks whose mineral composition in homogeneous. It is also known as onion peeling.
◼ GRANULAR DISINTEGRATION - The process of disintegration of rocks into smaller fragments or pieces is called granular disintegration. It is predominant in hot deserts and tropical regions. It generally occurs on those rocks whose mineral composition is heterogeneous.
◼ BLOCK DISINTEGRATION - Well-bedded and jointed rocks of homogeneous mineral composition split along the joints or cracks, thus, breaking the rocks into rectangular blocks. This process is called block disintegration. It is predominant in high temperature regions.
◼ FROST ACTION - In polar or high mountainous regions, water present in the cracks or joints of a rock freezes at night when temperature drops below the freezing point and exert a pressure within the rock wall because of its increased volume. Therefore, the rock tends to break into smaller fragments due to the action of ice, and this process is called frost-action.
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