Geology Final 1

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Author:
alyssamerwin
ID:
17944
Filename:
Geology Final 1
Updated:
2010-05-05 15:36:05
Tags:
geology
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Description:
geology
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  1. Phaneritic:
    Large crystals
  2. Aphanitic:
    Microscopic crystals
  3. Porphyritic:
    large crystals embedded in a matrix of smaller crystals
  4. Pegmatitic:
    coarse grained
  5. Bowen's reaction series:
    Minerals crystallize in a systematic fashion based on their melting points
  6. Example of a shield volcano:
    Mauna Loa
  7. What kind of lava do shield volcanoes have?
    basaltic lava
  8. Example of a composite cone volcano:
    Mt. St. Helens
  9. Which type of volcano is the largest:
    composite cone
  10. Which volcano is the shortest and most short-lived?
    Cinder cone
  11. The four major sediment types:
    • cosmogenous
    • byogenous
    • hydrogenous
    • lithogenous
  12. Schistosity:
    layered structure, platy minerals that are discernible with the unaided eye
  13. Where do wave fronts radiate from an eartquake?
    Epicenter
  14. Where do most earthquakes occur?
    Plate Boundaries
  15. Great earthquakes are associated with what kind of motion?
    Stick-slip
  16. P-Waves:
    • travels through solids and liquids
    • Short
    • Short in height
  17. L-Waves:
    • travel at earth's surface
    • tall
    • long
  18. S-Waves:
    Travel only through solids
  19. Scale of hardness; fingernail:
    2-2.5
  20. Scale of hardness; copper coin:
    3.5
  21. Scale of hardness; glass:
    5-5.5
  22. Scale of hardness; steel nail:
    5-6
  23. Scale of hardness; streak plate:
    6.5-7

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