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Folding and Faulting

Folding and Faulting. Chapter 4, Sec. 4. Stress. Amount of force per area put on an object. Rocks can change shape due to stress. Three types of stress:. Compression Tension Shear. FOLDING. Rock layers bend due to stress Assume most rocks are laid down horizontal. FAULTS.

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Folding and Faulting

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  1. Folding and Faulting Chapter 4, Sec. 4

  2. Stress • Amount of force per area put on an object

  3. Rocks can change shape due to stress

  4. Three types of stress: Compression Tension Shear

  5. FOLDING • Rock layers bend due to stress • Assume most rocks are laid down horizontal

  6. FAULTS • The line along which rocks break and move

  7. Normal Faults • Caused by tension forces • Hanging wall moves down

  8. Reverse Faults • Caused by compression forces • Hanging wall moves up

  9. Strike-slip Faults • Opposing forces cause rock to break • Move horizontally

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