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Mr. Biando's Lab
Mr. Biando's Lab - Deformation
| Definition | Term |
|---|---|
| The process by which the shape of a rock changes because of stress. | Deformation |
| A type of stress that occures when a rock is squeezed, such as when two tectonic plates collide (convergence). | Compression |
| A form of stress that occurs when rock is stretched by two tectonic plates being pulled apart (divergence). | Tension |
| The bending of rock layers due to stress. | Folding |
| A downward, trough-like fold in a layer of rock. | Syncline |
| An upward arching fold in a layer of rock. | Anticline |
| When layers of rock are folded so that two horizontal sections appear to be bent in the middle. | Monocline |
| A break in a body of rock along which one block slides relative to another. | Fault |
| When rocks are pulled apart because of tension. | Normal Fault |
| When rocks are pushed together by compression. | Reverse Fault |
| The top layer of rock appearing at a fault line. | Footwall |
| When rocks are move horizontally by opposing forces (transforming). | Strike-Slip Fault |
| Moutains that are formed by colliding (convergent) tectonic plates squeezed together and push rock upward. | Folded Mountains |
| Mountains that form when tectonic plates pull away (divergent) from each other, stretching and breaking apart, dropping blocks of crust forming faults. | Fault-Block Mountains |
| Mountains that are formed by volcanic means by hot spots located near subduction zones. | Volcanic Mountains |
| The rising of regions of the Earth's crust to higher elevations. | Uplift |
| The sinking of the Earth's crust to lower elevations. | Subsidence |
| One way areas rise without deformation. | Rebound |
| A set of deep cracks that form between two tectonic plates that are pulling away from each other. | Rift Zone |