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14 Cards in this Set
- Front
- Back
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the amount of force per unit area that is put on a given material
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stress
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the type of stress that occurs when an object is squeezed
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compression
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the type of stress that occurs when forces act to stretch an object
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tension
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when rock layers bend due to stress in the Earth's crust
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folding
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the surface along which rocks break and slide past each other
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faults
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blocks of crust on each side of the fault
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fault block
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the fault block that is above a fault
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hanging wall
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the fault block that is below a fault
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footwall
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a fault in which the hanging wall moves down relative to the footwall - usually occur when tectonic forces cause tension that pulls rocks apart
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normal fault
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a fault in which the hanging wall moves up relative to the foot wall - usually happens when tectonic forces cause compression that pushes rocks together
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reverse fault
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faults that occur when opposing forces cause rock to break and move horizontally
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strike-slip fault
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mountains that form when rock layers are squeezed together and pushed upward.
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folded mountains
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mountains that form when large blocks of the Earth's crust drop down relative to other blocks
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fault-block mountains
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mountains that form when molten rock erupts onto the Earth's surface
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volcanic mountains
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