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Chapter 8
Earth Dynamics
Question | Answer |
---|---|
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 force acting in opposite directions | Shear |
A change in the shape of rock caused by stress | Strain |
Deep, underwater troughs created by one plate subducting under another plate at a convergent plate boundary | Ocean Trenches |
A curved line of volcanoes that forms parallel to a plate boundary | Volcanic Arc |
Where tectonics plates slide horizontally past each other | Transform faults |
An area of many fractured pieces of crust along a large fault | Fault Zone |
Made of layers of rocks that are folded | Folded Mountains |
Are parallel ridges that form where blocks of crust move up or down along | Fault-block Mountains |
When large regions rise vertically with very little deformation | Uplifted Mountains |
An extensive area of level or rolling land | Plain |
Areas of subsidence and regions with low elevation | Basins |
Flat regions with high elevations | Plateaus |