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Question
Give a geographical reason:
Soft rocks form folds while hard rocks form faults.
Short Note
Solution
Soft rocks form folds while hard rocks form faults because -
- Soft and elastic rocks are affected by compressional forces.
- Rocks that lie deep within the crust and are therefore under high pressure are generally ductile and particularly susceptible to folding without breaking.
- Whereas rock layers that are near the earth's surface are too rigid to bend into folds.
- If the tectonic force is large enough, these rocks will break rather than bend, and faulting on rupture occurs.
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Folding
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RELATED QUESTIONS
'A mountain never remains a mountain'. Can you relate this idiom with the mountain building process?
Identify the correct correlation:
A: Assertion; R: Reasoning
A: Faulting leads to the development of fold mountains.
R: Faulting occurs when tensional forces move away from each other.
Give a geographical reason:
Folds depend on the strength of rocks and the intensity of forces.
Differentiate between Folding and faulting.
Differentiate between Asymmetrical fold and Symmetrical fold
Draw a diagram of the Types of faults.
