JKLP+2.1

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 * Section 2.1 Earth's Crust in Motion (back to homepage)**


 * Vocabulary*


 * earthquake*- the trembling and shaking that results from the movement of rock beneath Earth's surface
 * stress*- a force that acts on rock that changes its shape or volume
 * shearing*- stress that pushes a mass of rockin opposite directions
 * tension*-a type of stress that pulls on the crust, stretching it so it becomes thin in the middle
 * compression*-stress that squeezes/squishes rock until it folds or breaks
 * deformation*-any change in the size and shape of Earth's crust
 * fault*-a break in Earth's crust where big of small slabs of rock slip past each other
 * strike-slip fault*-a fault where the rocks on either side of the fault slip past each other sideways with little up or down movement
 * normal fault*- a fault that is at an angle so that the hanging wall hangs downward; caused by tension
 * reverse fault*-a fault where the hanging wall is actually slides upward
 * fault-block mountain*- a mountain that is formed when a normal fault lifts a block/slab of rock
 * fold*-a bend in rock that is formed where part of the Earth's crust is compressed
 * plateau*-a type of landform that has more or less level surface; is elavated high above sea level


 * Outline**


 * Earth's Crust in Motion
 * Stress in Crust
 * Types of Stress
 * Stress in Earth's rock
 * Kinds of Faults
 * Strike-Slip Faults
 * Normal Faults
 * Reverse Faults
 * Friction along Faults
 * Mountain Building
 * Mountains Formed by Faulting
 * Mountains Formed by Folding
 * Anticlines and Synclines
 * Plateaus

FW=footwall HW=hanging wall