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FIEC
Forces In Earth's Crust
| Question | Answer |
|---|---|
| stress | a force that acts on rocks to change its shape or volume |
| tension | stress that stretches rock so that it becomes thinner in the middle |
| compression | stress that squeezes rock until it folds or breaks |
| shearing | stress that pushes a mass of rock that forms the upper half of a fault |
| normal fault | a fault in which one part is above another part and slips downward when movement occurs |
| hanging wall | the block of rock that forms the upper half of a fault |
| footwall | the block of rock that forms the lower half of a fault |
| reverse fault | a type of fault where the hanging wall slides upward, caused by compression in the crust |
| strike-slip fault | a type of fault where rocks on either side move past each other sideways, with little up-or-down motion |
| anticline | an upward fold in rock formed by compression of Earth's crust |
| syncline | a downward fold in rock formed by compression of Earth's crust |
| plateau | a large area of flat land elevated high above sea level |