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Worksheet 6

Movement of the Crust

AB
compressionThe types of stress that occurs when rocks are squeezed together is called
shearThe type of stress that occurs when rocks are forced in opposite horizontal directions is
reverse faultWhen compression causes the hanging wall to move upward in relation to the footwall this occurs
compressionThe type of stress that causes rocks to fold is
anticlineA fold that produces an upward bulge in rocks
monoclineA fold with only one bend in which the rock layers on one side of the bend are higher than those on the other side of the bend is called a
deformationA change in the shape or structure of the earth's crustal material is called
tensionThe stretching, or pulling apart, of rocks
synclineA fold producing a downward bulge is a
faultWhen the rocks on either side of the fracture move in relation to each other a fracture becomes a
shearA lateral fault that is created by this type of stress
normal faultA fault that is created when the hanging wall moves downward in relation to the footwall
deformationBending, folding, breaking, sliding, and tilting of rock layers are all types of this
synclineThe center part of this fault is lower than either edge
lateral faultThe fault plane of this type of fault is usually verical
folded mountainsType of mountains formed as a result of compression
reverse faultType of fault common in folded mountain ranges
Himalayas and AppalachiansA folded mountain range formed as a result of two continental plates colliding
fault-block mountainMountains formed as a result of tension
normal faultsType of fault common in fault-block mountains
Grand Tetons of WyomingMountain ranges formed as a result of the movement of divergent plate boundaries
plutonic mountainsMountains formed as a result of an oceanic and a continental plate colliding
Sierra NevadaMountain range formed as a result of a convergent boundary being subducted under another
volcanic mountainsMountains formed at the convergent boundary of two oceanic plates or an oceanic and a continental plate
Mt. Fugi and the Hawaiian IslandsFormed by magma reaching the surface
compressional stressForms folded , plutonic, and volcanic mountains
tensional stressForms fault-block mountains
plateausAreas of the curst that has been uplifted without forming mountains


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