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earth dynamics
| Term | Definition |
|---|---|
| the equilibrium between continental crust and the denser mantle below it | isostasy |
| the downward vertical motion of Earth's surface | subsidence |
| the upward vertical motion of Earth's surface | uplift |
| squeezing stress | compression |
| stress that pulls something apart | tension |
| parallel forces acting in opposite directions | shear |
| a change in the shape of rock caused by stress | strain |
| are deep, underwater troughs created by one plate subducting under another plate at a convergent plate boundary | ocean trench |
| a curved line of volcanoes that forms parallel to a plate boundary | volcanic arc |
| where tectonic plates slide horizontally past each other | transform fault |
| an area of many fractured pieces of crust along a large fault | fault zone |
| made a layers of rocks that are folded | folded mountain |
| parallel ridges that form where blocks of crust move up or down along faults | fault-block mountain |
| when large regions rise vertically with very little deformation | uplifted mountain |
| an extensive area of level or rolling land | plains |
| areas of subsidence and regions with low elevation | basin |
| flat regions with high elevations | plateau |
| forms where two plates separate | divergent plate boundary |
| forms where two plates slide past each other | transform plate boundary |
| form where two plates collide | convergent plate boundaries |