Clastic Sedimentology And Petrography Quiz!

15 Questions | Total Attempts: 273

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Clastic Sedimentology And Petrography Quiz! - Quiz


Questions and Answers
  • 1. 
    The processes responsible for changing sediments into the sedimentary rock are compaction and
    • A. 

      Foliation

    • B. 

      cementation

    • C. 

      intrusion

    • D. 

      Stratification

  • 2. 
    Which of the following is an organic sedimentary rock?
    • A. 

      Basalt

    • B. 

      Conglomerate

    • C. 

      Coal

    • D. 

      Sandstone

  • 3. 
    A rock composed of cemented, rounded pebbles is a
    • A. 

      Porphyry

    • B. 

      Shale

    • C. 

      Conglomerate

    • D. 

      Breccia

  • 4. 
    Ripple marks in rocks are formed by:
    • A. 

      heating and cooling

    • B. 

      moving wind or water

    • C. 

      drying and shrinking

    • D. 

      Contact with magma

  • 5. 
    To which of the following groups does breccia belong?
    • A. 

      Chemical sedimentary

    • B. 

      Clastic sedimentary

    • C. 

      Unfoliated metamorphic

    • D. 

      Foliated metamorphic

  • 6. 
    The layering of sedimentary rock with coarse grains at the bottom and fine grains at the top is
    • A. 

      Cross bedding

    • B. 

      Concretion

    • C. 

      Foliation

    • D. 

      Graded bedding

  • 7. 
    Scientific discipline which studies structure, origins and properties of sedimentary rocks is classified as:
    • A. 

      Pedology

    • B. 

      Sedimentology

    • C. 

      Morphology

    • D. 

      Geology

  • 8. 
    Sedimentary rocks can occur before sediments are made.
    • A. 

      True

    • B. 

      False

  • 9. 
    Igneous rocks occur before sediments are made.
    • A. 

      True

    • B. 

      False

  • 10. 
    Fine-grained, silt-size sediment formed by the mechanical erosion of bedrock at the base and sides of a glacier by moving ice is called rock flour.
    • A. 

      True

    • B. 

      False

  • 11. 
    The tendency for variations in current velocity to segregate sediments on the basis of particle size is called _____.
    • A. 

      Lilthification

    • B. 

      Compaction

    • C. 

      Metamorphism

    • D. 

      Sorting

  • 12. 
    Which of the following types of currents can transport sand grains?
    • A. 

      Rivers

    • B. 

      Wind

    • C. 

      Ocean waves

    • D. 

      All of these

  • 13. 
    In which of the following sedimentary environments would you expect the sand deposits to be poorly sorted?
    • A. 

      Alluvial

    • B. 

      Beach

    • C. 

      Desert

    • D. 

      Glacial

  • 14. 
    Which of the following environments is an example of a shoreline/transitional environment?
    • A. 

      Alluvial

    • B. 

      Continental shelf

    • C. 

      Deltaic

    • D. 

      Organic reef

  • 15. 
    Marine sediments deposited in water depths greater than about 12,000 feet usually lack ________ 
    • A. 

      Carbonate shells

    • B. 

      Silica-rich shells

    • C. 

      Fine grained material transported by the wind

    • D. 

      All of these

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