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Deforming the Earth’s Crust: Faulting

Deforming the Earth’s Crust: Faulting. Pg. 121. What is a FAULT?. When rock layers BREAK when stress is applied. One block of rock slides relative to another. Narrow base block of angled crust. What is the hanging wall,. see page 114.

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Deforming the Earth’s Crust: Faulting

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  1. Deforming the Earth’s Crust: Faulting Pg. 121

  2. What is a FAULT? When rock layers BREAKwhen stress is applied One block of rock slides relative to another

  3. Narrow base block of angled crust What is the hanging wall, see page 114 Broad base block of angled crust the foot wall?

  4. What is a normal fault? When the hanging wall moves down relative to the footwall Occurs when tectonic forces cause tensionthat pull the blocks of rock apart

  5. A normal fault

  6. What is a REVERSE FAULT? When the Hanging wall moves up relative to the footwall Occurs when tectonic forces push the blocks of rock together (Compression)

  7. A reverse fault

  8. What are STRIKE-SLIP FAULTS? Form when opposing forces cause rock to break and move horizontally Example: California’s San Andreas fault

  9. A strike slip fault Geologic Activity, http://www.nps.gov/pore/naturescience/geologicactivity.htm

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