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Chapter 8 Vocab
Vocabulary
| Term | Definition |
|---|---|
| Isotasy | Is the equilibrium between continental crust and the denser mantle below it. |
| Subsidence | The downward vertical motion of Earth's surface is called |
| Uplift | The upward vertical motion of Earth's surface is called |
| Compression | Squeezing stress |
| Tension | Stress that pulls something apart |
| Shear | Parallel forces acting in opposite directions are |
| Strain | A change in the shape of rock caused by stress is called |
| Ocean Trenches | Are deep, underwater troughs created by one plate subducting under another plate at a convergent plate boundary. |
| Volcanic arc. | A curved line of volcanoes that forms parallel to a plate boundary is called a |
| Transform Faults | Where tectonic plates slide horizontally past each other they form... |
| Fault Zone | An area of many fractured pieces of crust along a large fault is called fault zone |
| Fault-block mountains | Are parallel ridges that form where blocks of crust move up or down along faults |
| Uplifted Mountains | When large regions rise vertically with very little deformation |
| Plain | Is an extensive area of level or rolling land |
| Basins | Area of subsidence and regions with low elevations |
| Plateaus | Flat regions with high elevations are called |
| Folded Mountain | Made of layers of rock that are foled |