| Term | Definition |
|---|
| earthquake | shaking and trembling b/c of movement of rock |
| stress | forces that squeeze or pull rock |
| volume | the amount of space an object occupies |
| 3 kinds of stress | tension ,shearing and compression |
| shearing | stress that pushes rock in 2 opposite directions |
| tension | stretching of rocks ( pulling gum apart ) |
| compression | squeezes rock like a trash compactor |
| deformation | any change in volume or shape of rock |
| fault | break in the Earth's crust |
| where do faults usually occur? | along plate boundaries |
| strike slip fault | created by shearing |
| normal fault | produced by tension -- when the footwall is above the hanging wall |
| reverse fault | produced by compression --the footwall goes down |
| friction | determines how rocks move along a fault |
| fault block mountain | made when a normal fault uplifts a block of rock |
| fold | a bend in rock --not a break |
| anticlines | upward fold in rock --looks like a smiley face |
| syncline | downward fold in rock --looks like a frown |
| plateau | large flat land lifted high above sea level |
Combine with other sets
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