chapter 11 deformation of crust

CHAPTER 11DEFORMATION OF

CRUSTName: __________________

Period: _______Date: ___________

The bending, tilting, and breaking of the earth’s crust is _______________________.

The major cause is ___________________________.

The balancing of weight acting on the crust and the crust acting on the weight is called ___________________________. The up and down movement of the crust to balance are called _____________________________________.

  __________________ is the amount of force per

unit area that is placed on a given material. __________________ is the change in shape or

volume of rocks.   Three types of stress:

______________________: squeezing together. ______________________: pulling apart. ______________________: moving horizontal opposite

directions

Rocks deformed without breaking is called ____________________

3 types of folding: a.___________________________: up

curved fold with oldest layer in the center of fold

__________________________: down curved fold with youngest layer in the center of fold.

__________________________: fold where both limbs remain horizontal.

When rocks break and do not move a _______________________.

When rocks move on the break its called a ___________________

The _____________________ is the surface of the fault where any motion occurs. ________________________ moves above the fault plane. ________________________ moves below the fault plane.

Three types of faults _____________________: hanging wall moves

downward relative to footwall; occurs along divergent boundaries; tension is the force.

_____________________: hanging wall moves up relative to footwall; compression is the force. Occurs at convergent/collision boundaries.

Special type of fault, _____________________, has a low angle or nearly horizontal fault plane.

_____________________: rock on either side of fault plane slides horizontally; occurs at transform boundaries best known: San Andreas Fault.

A __________________________ is a group of adjacent mountains with the same general shape and structure.

____________________________ is a group of adjacent ranges.

____________________________ a system of mountains that circum navigate the earth.

4 types of mountains: ___________________________: collision of

continents, rock layers are squeezed together. Plateaus are common in the formation of mountains. Example: Himalayas

___________________________: earth’s crust has been extended and broken into large blocks; blocks are shifted by movement from the surrounding crust. ______________________ (long-narrow valleys between the blocks) occur. Example: Sierra Nevada

___________________________: molten material erupts onto the surface and builds a structure. Example: Cascade

• ___________________________: internal forces inside the earth push rock layers upwards. Example: Adirondacks