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Lesson 8 Chapter 1-4

wordDefinition
Isostasy The equilibrium between the continental crust and the denser mantle below it.
Subsidence The downward vertical motion of Earth's surface. Opposite of uplift
Uplift The upward vertical motion of Earth's surface.
Compression Squeezing stress.
Tension Stress that pulls something apart. Opposite of compression
Shear Parallel forces acting in opposite directions
Strain A change in the shape of a rock caused by stress
Ocean Trench Deep, underwater troughs created by one 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 Fault Tectonic plates slide horizontally past each other.
Fault Zone An area of many fractured pieces of crust along a large fault.
Folded mountain Made of rock layers that are folded.
Fault-block mountain Parallel ridges that form where blocks of crust move up or down along faults.
Uplifted mountain Very large regions rise vertically with very little deformation.
Plains An extensive area of level or rolling land.
Basin Areas of subsidence and regions with low elevation.
Plateau Flat regions with high elevations
Popular Earth Science sets

 

 



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