click below
click below
Normal Size Small Size show me how
Chapter 8 Vocab
| Question | Answer |
|---|---|
| isostasy | equilibrium(balance) between continental crust and the denser mantle below it. |
| subsidence | The downward vertical motion of Earths surface. |
| uplift | The upward vertical motion of Earths surface. |
| compression | squeezing stress |
| tension | Stress that pulls something apart. |
| shear | Parallel forces acting in opposite directions |
| strain | a change in the shape of rock caused by stress |
| Oceanic trench | deep, underwater troughs created by a oceanic plate sub ducting under another plate at a convergent plate boundary. |
| volcanic arc | curved line of volcanoes' that forms parallel to a plate boundary |
| transform fault | where block of crust slide horizontally past each other. |
| fault zone | an area of many fractured pieces of crust along a large fault |
| folded mountain | layers of rocks that are folded |
| fault block mountain | parallel ridges that form where blocks of crust move up or down along faults. |
| Plains | extensive area of level or rolling land |
| Basin | Areas of subsidence or regions with low elevation. |
| Plateau | Flat regions with high elevations |
| Uplifted mountains | when large regions rise vertically with very little deformation |