11.1 Rock Deformation
Stress <ul><li>The force per unit area acting on a solid. </li></ul>
Strain <ul><li>The change in shape or volume of a body of rock as a result of stress. </li></ul>
Anticline <ul><li>Formed by the upfolding, or arching, of rock layers. </li></ul>
Synclines <ul><li>Downfolds, or troughs, found in association with anticlines </li></ul>
Monoclines <ul><li>Large, step-like folds in otherwise horizontal sedimentary strata </li></ul>
Normal fault <ul><li>Occurs when the hanging wall block moves relative to the footwall block </li></ul>
Reverse fault <ul><li>A fault in which the hanging wall block moves up relative to the footwall block. </li></ul>
Thrust fault <ul><li>Reverse faults with dips of less than 45 degrees </li></ul>
Strike-slip fault <ul><li>Faults in which the movement is parallel to the trend or strike, of the fault surface </li></ul>
Key Concepts <ul><li>The factors that influence the strength of a rock and how it will deform include temperature, confini...
Key Concepts <ul><li>Forces that are unable to deform rock when first applied may cause rock to flow if the force is maint...
Key Concepts <ul><li>The three main types of folds are anticlines, synclines, and monoclines. </li></ul><ul><li>The major ...
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11.1 earth sci

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11.1 earth sci

  1. 1. 11.1 Rock Deformation
  2. 2. Stress <ul><li>The force per unit area acting on a solid. </li></ul>
  3. 3. Strain <ul><li>The change in shape or volume of a body of rock as a result of stress. </li></ul>
  4. 4. Anticline <ul><li>Formed by the upfolding, or arching, of rock layers. </li></ul>
  5. 5. Synclines <ul><li>Downfolds, or troughs, found in association with anticlines </li></ul>
  6. 6. Monoclines <ul><li>Large, step-like folds in otherwise horizontal sedimentary strata </li></ul>
  7. 7. Normal fault <ul><li>Occurs when the hanging wall block moves relative to the footwall block </li></ul>
  8. 8. Reverse fault <ul><li>A fault in which the hanging wall block moves up relative to the footwall block. </li></ul>
  9. 9. Thrust fault <ul><li>Reverse faults with dips of less than 45 degrees </li></ul>
  10. 10. Strike-slip fault <ul><li>Faults in which the movement is parallel to the trend or strike, of the fault surface </li></ul>
  11. 11. Key Concepts <ul><li>The factors that influence the strength of a rock and how it will deform include temperature, confining pressure, rock type, and time. </li></ul><ul><li>Rocks deform permanently in two ways: brittle deformation and ductile formation. </li></ul>
  12. 12. Key Concepts <ul><li>Forces that are unable to deform rock when first applied may cause rock to flow if the force is maintained over a long period of time. </li></ul><ul><li>The three types of stresses that rocks commonly undergo are tensional stress, compressional stress, and shear stress. </li></ul>
  13. 13. Key Concepts <ul><li>The three main types of folds are anticlines, synclines, and monoclines. </li></ul><ul><li>The major types of faults are normal faults, reverse faults, thrust faults, and strike-slip faults. </li></ul>
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