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Crust in Motion
Inside Earth: Chapter Two, Section One
Term | Definition |
---|---|
earthquake | the shaking that results from the movement of rock beneath Earth's surface. |
stress | a force that acts on rock to change its shape or volume. |
shearing | stress that pushes a mass of rock in opposite directions. |
tension | stress that stretches rock so that it becomes thinner in the middle. |
compression | stress that squeezes rock until it folds or breaks. |
deformation | a change in the volume or shape of Earth's crust. |
fault | a break in Earth's crust where slabs of rock slip past each other. |
strike-slip | a fault where rocks on either side move past each other sideways with little up-or-down motion. |
fault-block | a mountain that forms where a normal fault uplifts a block of rock. |
folds | a bend in rock that forms where a part of Earth's crust is compressed. |
plateau | a large area of flat land elevated high above sea level. |