Question:
A reverse fault is caused by
A reverse fault is caused by
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The type of stress acting on rocks determines the kind of fault that forms.
Updated On: Jun 16, 2026
- Compressional stress
- Shear stress
- Extensional stress
- Complex stress
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The Correct Option is A
Solution and Explanation
Concept:
The type of stress acting on rocks determines the kind of fault that forms. Compressional stress squeezes rocks together, extensional (tensional) stress pulls them apart, and shear stress pushes them in opposite parallel directions.
Step 1:
Identify what a reverse fault does. In a reverse fault, the hanging wall is pushed up and over the footwall, which shortens and thickens the crust. This shortening can only happen when rocks are being squeezed.
Step 2:
Squeezing of rocks is the result of compressional stress. Extensional stress would create a normal fault, and shear stress would create a strike-slip fault, so neither of those applies here.
Answer: Option (1) — Compressional stress.
The type of stress acting on rocks determines the kind of fault that forms. Compressional stress squeezes rocks together, extensional (tensional) stress pulls them apart, and shear stress pushes them in opposite parallel directions.
Step 1:
Identify what a reverse fault does. In a reverse fault, the hanging wall is pushed up and over the footwall, which shortens and thickens the crust. This shortening can only happen when rocks are being squeezed.
Step 2:
Squeezing of rocks is the result of compressional stress. Extensional stress would create a normal fault, and shear stress would create a strike-slip fault, so neither of those applies here.
Answer: Option (1) — Compressional stress.
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