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vocab chapter 1
| Term | Definition |
|---|---|
| Stress | The force that push and pull on the Earth 's crust causing it deformation. |
| Crust | The surface layer of the Earth. |
| Deformation | In geology, any change in the original shape or volume of rocks. |
| Compression | The type of stress that squeezes rocks together. |
| Tension | The type of stress that pulls rocks apart. |
| Shearing | The type of stress that pushes rocks with the crust in two apposite, horizontal directions. |
| Fracture | Break or crack. |
| Fault | A break or crack along with rocks move. |
| Hanging Wall | The block or rock above fault. |
| Foot Wall | The block or rock below a fault. |
| Normal Fault | A fault in which the hanging wall moves down relative to the foot wall. |
| Reverse Fault | A fault in which the hanging wall moves up relative to the foot wall. |
| Thrust Fault | A reverse in which the hanging wall slides over the foot wall. |
| Lateral Fault | A fault along which the blocks move horizontally past each other. |
| Fault-block mountion | A mountain formed by blocks of rock uplifted from normal fault. |
| Rift Vally | A vally formed when the block land between two normal fault slides downward. |
| Fold | A bend in rock. |
| Anticline | An upward fold in a rock. |
| Syncline | A downward fold in a rock. |
| Plateau | A large area of flat land that is raised high above sea level and that consist of horizontal rock layers. |
| Dome | A raised area shaped roughly like the top half of a sphere, often formed by magma pushing upward on the rock layers above it. |
| Mantle | The layer of the earth that extends from the bottom of the crust to the core. |
| Isostasy | The balancing of the downward force of the crust and the upward force of the mantle. |