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Earth Sci Ch 8
Question | Answer |
---|---|
the equilibrium between continental crust and the denser mantle below it | isostasy |
the downward vertical motion or 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 |
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 |
curved line of volcanoes that forms parallel to a plate boundary | volcanic arc |
tectonic plates slide horizontally past each other | transform faults |
made of layers of rocks that are folded | folded mountains |
parallel ridges that form where blocks of crust move up or down along faults | fault-block mountains |
large regions rise vertically with very little deformation | uplifted mountains |
extensive area of level or rolling land | plain |
areas of subsidence and region with low elevation | basins |
flat regions with high elevations | plateaus |
plates are moving apart | divergent plate boundary |
forms when plates slide by each other | transform plate boundary |
plates come together | convergent plate boundary |
area of many fractured pieces of crust along a large | fault fault zone |