Geology Test 3

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Anonymous
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211796
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Geology Test 3
Updated:
2013-04-06 14:21:56
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Geology
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Review on Test 3
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  1. Original or Parent rock of a metamorphic rock:
    Protolith
  2. Time missing from a rock sequence that is shown by an unconformity:
    Hiatus
  3. The different minerals that can make up a banded iron formation,
    Red:
    Grey:
    White:
    • Red: Jasper
    • Grey: Hematite/Magnetite
    • White: Quartz/Silicates
  4. Rocks that form under similar metamorphic conditions belong to the same:
    Facies
  5. Most common sedimentary cements:
    Hematite/Silica/Calcite
  6. Crossbedding indicates rock formation in:
    Dunes or shallow water
  7. Iron rusting is an example of this type of chemical weathering:
    Oxidation
  8. Weathering of Feldspar creates:
    Clay minerals and ions in solution
  9. Solid particles derived from mechanical and physical weathering:
    Sediments
  10. Examples of evaporites:
    Gypsum/Halite
  11. Beds of sedimentary rock, arranged horizontally over an igneous intrusion is an example of:
    Nonconformity
  12. Why is banded iron considered a sedimentary rock?
    Precipitates out in a marine enviroment
  13. Requirements for fossilization:
    • 1.)Burial
    • 2.)Lack of oxygen
    • 3.)Compression
    • 4.)Replacement
    • 5.)Time
  14. A chemical sedimentary rock that consists of NaCl:
    Halite/Rock Salt
  15. A sandstone with a dark matrix
    Greywacke
  16. The parallel alignment of grains due to heat and pressure:
    Foliation
  17. The process by which grains are cemented together to form rock:
    Lithification
  18. The oldest rock is on the bottom is the principle of:
    Superposition
  19. The length of time it takes 50% of an element to degrade:
    Half-Life
  20. Why can't carbon dating be used to date the rock in the Duluth Complex?
    Too old
  21. Fast moving seismic waves:
    P-Waves
  22. Slower moving seismic waves:
    S-Waves
  23. A layer of sedimentary rock:
    Bed
  24. Any evidence of past life:
    Fossil
  25. Lowest density coal:
    Lignite
  26. Sedimentary rocks that exhibit a conchoidal fracture:
    • Chert/Flint/Jasper
    • (Silicates)

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