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chapter 8 vocab
| Term | Definition |
|---|---|
| isostasy | is the equlilbrium 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 |
| ocean trench | are deep, underwater troughs created by and oceanic plate subducting under another plate at a convergent plate boundary |
| volcanic arc | a curved line of volcanoes that forms parallel to a plate boundary |
| transform faults | where blocks of crust slide horizontally past each other |
| fault zone | an area of many fractured pieces of crust along a large fault |
| folded mountain | are made of layers of rocks that are folded |
| fault-block mountains | are parallel ridges that form where blocks of crust move up or down along faults |
| plains | is an extensive area of level or rolling land |
| basins | areas of subsidence and regions with low elevation |
| plateaus | flat regions with high elevations |