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Unit 6 & 7

Mountain Building and Earthquakes Notes

Deformation the process by which rocks change shape when under stress.
Folding occurs when rock layers bend under stress.
fault the crack that forms between the two blocks of rock.
Shear stress stress that pushes rocks in parallel but opposite directions.
Tension stress that stretches or pulls rock apart.
Compression stress that squeezes or pushes rock together.
Earthquakes ground movements that occur when blocks of rock in Earth move suddenly and release energy.
focus a place within Earth along a fault at which the first motion of an earthquake occurs.
epicenter an area on the earth’s surface that is directly above the focus of an earthquake.
tectonic plate boundary where two or more tectonic plates meet.
Elastic deformation a type of deformation in which the rock can return to its original form.
Elastic rebound where rock returns to its original form after elastic deformation.
tsunami a series of extremely long waves that can travel across the ocean at speeds of up to 800 km/h (kilometers per hour).
Created by: brainybunch6
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