The Perfect Practice Test For Geology Exams Part- III

99 Questions | Total Attempts: 50

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Geology Quizzes & Trivia

If you are a first-time Geology student, one of the things you need to know at the end of your course is the structure, composition, and processes of the earth from the center to surface. This is the third test in "The Perfect Practice Test For Geology Exams" series. It will help you put your understanding of the subject on a tough test.


Questions and Answers
  • 1. 
    The orientation of rock layers can be determined by measuring: 
    • A. 

      Location

    • B. 

      Strike and dip

    • C. 

      Height

    • D. 

      Thickness

  • 2. 
    Brittle failure is associated with:
    • A. 

      A. Rocks deep within the crust, where high temperatures cause rocks to break.


    • B. 

      B. Rocks at the surface, where temperatures and pressures are low.


    • C. 

      C. The slow application of stress, which allows atoms to migrate from areas of maximum stress and rebound in areas of lower stress.


    • D. 

      D. None of the above.

  • 3. 
    Deformation is most easily seen
:
    • A. 

      A. In igneous plutons that contain a significant number of hydrous minerals.


    • B. 

      B. In sedimentary rocks because they were originally horizontal and deformation disturbs their horizontality in visually obvious ways.


    • C. 

      C. In non-foliated metamorphic rocks such as marble and quartzite.


    • D. 

      D. None of the above.

  • 4. 
    Along a fault, the rock masses on either side of the fracture have moved relative to each other.
    • A. 

      True

    • B. 

      False

  • 5. 
    Each type of fault
:
    • A. 

      Is produced by a particular type of stress.

    • B. 

      Occurs at a distinct depth in the mantle.

    • C. 

      Is caused by elastic strain.


    • D. 

      Is the result of a different type of strain.

  • 6. 
    Faults that form by a horizontal slip of adjacent blocks of rock:

    • A. 

      Are called strike-slip faults.


    • B. 

      Do not cause any ground displacement.


    • C. 

      Usually contain at least one block that has dropped down a significant distance.

    • D. 

      Generally form at divergent plate boundaries.

  • 7. 
    Faults with oblique-slip combine vertical and horizontal motion. 
    • A. 

      True

    • B. 

      False

  • 8. 
    Fractures in rocks are evidence of:
    • A. 

      Plastic strain

    • B. 

      Elastic strain

    • C. 

      Brittle strain

    • D. 

      None of the above

  • 9. 
    In a reverse fault:

    • A. 

      Powerful compressional forces are needed to move the rocks above the fault plane up.

    • B. 

      The fault blocks first move down and then reverse direction, to move up.


    • C. 

      Shear stress causes the two fault blocks to move past each other horizontally.

    • D. 

      Tensional forces allow the rocks above the fault plane to drop down.

  • 10. 
    In dip-slip faults, the fault blocks move up and down, parallel to the dip of the fault plane.
    • A. 

      True

    • B. 

      False

  • 11. 
    Overthrust is associated with thrust faults and can be responsible for placing an older rock on top of younger rock.
    • A. 

      True

    • B. 

      False

  • 12. 
    Rock fractures with no evidence of movement are called faults. 
    • A. 

      True

    • B. 

      False

  • 13. 
    Synclines and anticlines are evidence of tensional stress experienced by the rocks.
    • A. 

      True

    • B. 

      False

  • 14. 
    Folds are found mainly at:
    • A. 

      Transform plate boundaries, where rocks are being pushed together.


    • B. 

      Convergent plate boundaries, where rocks are being squeezed together.

    • C. 

      Divergent plate boundaries, where rocks are being pulled apart.


    • D. 

      All of the above.

  • 15. 
    Which of the following is the definition of an anticline?
    • A. 

      A fold that is concave-upward.


    • B. 

      A fold whose limbs plunge toward one another.

    • C. 

      A fold whose axis is horizontal.

    • D. 

      A fold whose limbs are inclined away from each other.

  • 16. 
    When an entire sequence of anticlines and synclines tilts so that the structure’s axes intersect the Earth’s surface they are called:
    • A. 

      Symmetrical folds.

    • B. 

      Recumbent folds.

    • C. 

      Overturned folds.

    • D. 

      Plunging folds.

  • 17. 
    In a setting of tensional tectonics: 
    • A. 

      Normal faulting occurs


    • B. 

      Basin formation occurs

    • C. 

      Steep faults shallow with a depth

    • D. 

      All of the above

  • 18. 
    Under compressive tectonics:

    • A. 

      Blocks of crustal rocks slide past each other sideways

    • B. 

      Layers of rocks are thrust over each other


    • C. 

      Basins are formed


    • D. 

      All of the above

  • 19. 
    An example of strike-slip faulting is:
    • A. 

      The Rhine Valley

    • B. 

      The Keystone fault, Nevada

    • C. 

      The San Andreas


    • D. 

      The Basin and Range

  • 20. 
    21. Minerals are stable

    • A. 

      A. Under all conditions.

    • B. 

      B. Under no conditions, that’s why they weather.

    • C. 

      C. Under the conditions in which they originally formed.

  • 21. 
    22. The changes that occur to minerals during metamorphism
    • A. 

      A. Occur very quickly as temperature changes.


    • B. 

      B. Occur by the initiation of partial melting.


    • C. 

      C. Occur in the solid state.

    • D. 

      D. Occur when minerals dissolve in hot water.

  • 22. 
    23. Unstable minerals will recrystallize during metamorphism 
    • A. 

      True

    • B. 

      False

  • 23. 
    24. Temperature beneath the continental crust increases at a rate of 2 to 3 degrees centigrade per meter
    • A. 

      True

    • B. 

      False

  • 24. 
    25. Equally exerted pressure within the crust is termed 
    • A. 

      A. Shear pressure.

    • B. 

      B. Confining pressure.

    • C. 

      C. Directed pressure.

    • D. 

      D. Partial pressure.

  • 25. 
    26. Which of the following factors is not a significant part of metamorphism 
    • A. 

      A. Fluids.

    • B. 

      B. Gravity.

    • C. 

      C. Heat.


    • D. 

      D. Pressure.