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Ch 5- Changing the Crust

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Learn about isostatic adjustments in lithosphere, rock folding, breaking, and faulting. Discover mountain types and valley formation caused by crustal movements.

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Ch 5- Changing the Crust

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  1. Ch 5- Changing the Crust

  2. The rising and falling of the lithosphere into the asthenosphere due to changes in weight are called isostatic adjustments.

  3. These movements cause stress on the crustal rocks

  4. Many times the rocks will fold without breaking; 3 ways 1. Anticline

  5. 2. Syncline

  6. 3. Monocline

  7. Other times the rock will break; if the rocks do not move it is called a fracture If the rocks move, it is called faulting

  8. Normal fault Reverse fault

  9. Thrust fault Strike-slip fault

  10. Constant changing of the crust forms mountains and valleys

  11. Types of mountains 1. Folded mountains

  12. 2. Plateaus

  13. 3. Fault-block mountains

  14. 4. Volcanic mountains

  15. 5. Dome mountains

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