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CHAPTER 11 Deformation of Crust

CHAPTER 11 Deformation of Crust. Name: __________________ Period: _______ Date: ___________. The bending, tilting, and breaking of the earth’s crust is _______________________. The major cause is ___________________________.

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CHAPTER 11 Deformation of Crust

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  1. CHAPTER 11Deformation of Crust Name: __________________ Period: _______ Date: ___________

  2. 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 _____________________________________.

  3. __________________ 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

  4. Rocks deformed without breaking is called ____________________ • 3 types of folding: • a.___________________________: up curved fold with oldest layer in the center of fold

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

  6. __________________________: fold where both limbs remain horizontal.

  7. 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.

  8. 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.

  9. 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.

  10. 4 types of mountains: • ___________________________: collision of continents, rock layers are squeezed together. Plateaus are common in the formation of mountains. Example: Himalayas

  11. ___________________________: 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

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

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

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