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Ch2L1

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  • What is a footwall?
    The block of rock that lies under a fault
  • What is a syncline?
    A fold in rock that bends downward to form a V shape
  • What type of fault is shown?
    Reverse fault
  • How are anticlines and synclines similar?
    They are both types of folds caused by compression forces
  • What is a normal fault?
    A fault in which the hanging wall slips down relative to the footwall
  • What is tension?
    The stress force that pulls on the crust and thins rock in the middle
  • What is a plateau?
    A large area of flat land elevated high above sea level
  • What kind of fault is shown?
    Strike-Slip
  • How do plateaus form?
    Forces in the Earth push up a large, flat block of rock
  • How do faults form?
    When enough stress builds up in rock, the rock breaks and creates a fault
  • What is a reverse fault?
    A fault in which the hanging wall moves up relative to the footwall
  • What is shearing?
    The stress force that pushes a mass of rock in two opposite directions
  • What is stress?
    A force that acts on a rock to change its shape or volume
  • How do folded mountains form?
    They form when two plates collide and cause compression and folding of the crust over a wide area
  • What type of stress is shown?
    Tension
  • How do fault-block mountains form?
    When two plates move away from each other, tension forces create normal faults
  • How do folds form?
    Folds are bends in rock that form when compression shortens and thickens Earth's crust
  • What is an anticline?
    A fold in rock that bends upward into an arch
  • What is a strike-slip fault?
    A fault in which the rocks on either side slip past each other sideways with little up or down motion
  • What is compression?
    The stress force that squeezes rock until it folds or breaks
  • What is a hanging wall?
    The block of rock that sits over a fault