Geology 1400

36 Questions

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Geology Quizzes & Trivia

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Questions and Answers
  • 1. 
    Which of the following is NOT part of the definition of a mineral:  
    • A. 

      Naturally occurring, homogeneous, inorganic solid

    • B. 

      Cannot be scratched with a fingernail

    • C. 

      Ordered internal molecular structure

    • D. 

      Definite chemical composition

  • 2. 
    Which of the following is the type of bonding where electrons are transferred from atoms of one element to atoms of another element? 
    • A. 

      Ionic

    • B. 

      Metallic

    • C. 

      Covalent

    • D. 

      Van der Waals

  • 3. 
    Igneous rocks are formed by: 
    • A. 

      compaction and cementation of fragments of pre-existing rock

    • B. 

      heating and/or squeezing of pre-existing rock

    • C. 

      precipitation form an aqueous solution

    • D. 

      crystallization from lava or magma

  • 4. 
    The property of crystals that break naturally along particular planes of weakness is called:  
    • A. 

      Planarity

    • B. 

      Fracture

    • C. 

      Cleavage

    • D. 

      Hardness

  • 5. 
    Polymorphs are minerals:  
    • A. 

      with disordered internal structures

    • B. 

      with multiple crystal faces

    • C. 

      that can be a variety of colors

    • D. 

      with the same chemical composition but different crystalline structures

  • 6. 
    Moh's hardness scale _____________.
  • 7. 
    Which of the following minerals are a form of corundum (Al2O3)?  
    • A. 

      Diamond

    • B. 

      Emerald

    • C. 

      Ruby

    • D. 

      Sapphire

  • 8. 
    What is the crystal system of fluorite, pyrite and galena? 
    • A. 

      Cubic

    • B. 

      Hexagonal

    • C. 

      Monoclinic

    • D. 

      Orthorhombic

    • E. 

      Tetragonal

    • F. 

      Trigonal

  • 9. 
    One cubic meter (~36 cubic feet) of gold weighs approximately: 
    • A. 

      20 kg (~44 lbs)

    • B. 

      200 kg (~440 lbs)

    • C. 

      2 tonnes (~2.2 tons)

    • D. 

      20 tonnes (~22 tons)

    • E. 

      200 tonnes (~220 tons)

  • 10. 
    The streak of corundum is always ____________  
    • A. 

      Black

    • B. 

      Brown

    • C. 

      Green

    • D. 

      Pink

    • E. 

      White

  • 11. 
    Selenite is the gem variety of ________ 
    • A. 

      Anhydrite

    • B. 

      Apatite

    • C. 

      Barite

    • D. 

      Calcite

    • E. 

      Gypsum

  • 12. 
    _______ is the Missouri state mineral  
    • A. 

      Calcite

    • B. 

      Fluorite

    • C. 

      Galena

    • D. 

      Quartz

    • E. 

      Selenite

  • 13. 
    _______ is the Illinois state mineral 
    • A. 

      Calcite

    • B. 

      Fluorite

    • C. 

      Galena

    • D. 

      Quartz

    • E. 

      Selenite

  • 14. 
    Which of the following is the least useful property for mineral identification? 
    • A. 

      Cleavage

    • B. 

      Color

    • C. 

      Density

    • D. 

      Fracture

    • E. 

      Hardness

  • 15. 
    A crystal with "acicular" habit is _______  
    • A. 

      Blobby

    • B. 

      Granulite

    • C. 

      Needle-like

    • D. 

      Platy

    • E. 

      Spherical

  • 16. 
    The coarsest-grained clastic sedimentary rock is called a ___________, while the finest-grained is a ___________" 
  • 17. 
    Coal is an example of a(n) ____________ sedimentary rock   
    • A. 

      Chemical

    • B. 

      Clastic

    • C. 

      Detrital

    • D. 

      Organic

  • 18. 
    The main mineral in most sandstones is _______ 
    • A. 

      Calcite

    • B. 

      Corundum

    • C. 

      Potassium Feldspar

    • D. 

      Plagioclase Feldspar

    • E. 

      Quartz

  • 19. 
    A coarse-grained sedimentary rock containing angular fragments is called _______ 
    • A. 

      Breccia

    • B. 

      Chalk

    • C. 

      Conglomerate

    • D. 

      Rock salt

    • E. 

      Travertine

  • 20. 
    Carbon dioxide (CO2) reacts with water (H2O) in the atmosphere to form H2CO3, also known as ________ 
    • A. 

      Acetic acid

    • B. 

      Carbonic acid

    • C. 

      Calcite

    • D. 

      Cyanide

    • E. 

      Sulfuric acid

  • 21. 
    When mountain rivers slow down on entering a valley, they deposit __________
    • A. 

      All the sediment they are carrying

    • B. 

      The largest grains they are carrying

    • C. 

      The smallest grains they are carrying

    • D. 

      None of the sediment they are carrying

  • 22. 
    Lithification, the process of turning sediment into rock, is a combination of __________  
    • A. 

      Chemical and physical weathering

    • B. 

      Compaction and cementation

    • C. 

      Erosion and deposition

    • D. 

      Metamorphism and magmatism

    • E. 

      Rounding and sorting

  • 23. 
    The limestone deposited in mid-Missouri during the Mississippian Period indicates that, at that time, the area was __________  
    • A. 

      A little above sea level

    • B. 

      Close to an active volcano

    • C. 

      Much more mountainous than today

    • D. 

      Recently under a glacier

    • E. 

      Under a shallow sea

  • 24. 
    Cross-beds in desert sandstones can be used to determine __________ at the time of deposition   
    • A. 

      The average annual rainfall

    • B. 

      The direction the water was flowing

    • C. 

      The direction the wind was blowing

    • D. 

      The distance to the ocean

    • E. 

      The strength of the magnetic field

  • 25. 
    The volcanic equivalent of diorite is ________ 
    • A. 

      Andesite

    • B. 

      Komatiite

    • C. 

      Rhyolite

    • D. 

      Dacite

    • E. 

      Basalt

  • 26. 
    When newly erupted, basaltic lava has a similar viscosity to ________ 
    • A. 

      Ketchup

    • B. 

      Peanut butter

    • C. 

      Water

    • D. 

      Olive oil

    • E. 

      Soda

  • 27. 
    Pegmatites have very large crystals because _________
    • A. 

      They cool extremely slowly, so crystals have a long time to grow

    • B. 

      They contain a lot of silica, so crystals can grow quickly

    • C. 

      They cool extremely fast, so crystals have a very short time to grow

    • D. 

      They contain a lot of water, so crystals can grow quickly

  • 28. 
    Partial melting of the mantle produces _______ magma, while partial melting of the crust produces  _______ magma 
  • 29. 
    Contact metamorphism, resulting from intrusion of igneous rock, is driven by an increase in _______ 
    • A. 

      Temperature

    • B. 

      Pressure

    • C. 

      Fluids

    • D. 

      Fluids, pressure, and temperature

  • 30. 
    Put the following kinds of metamorphosed mudstone in order, from lowest grade to highest grade: schist, gneiss, and slate. _______, ________, then ________.
  • 31. 
    Amphibolite is a rock formed mostly of ________ 
    • A. 

      Amphibole

    • B. 

      Feldspar

    • C. 

      Garnet

    • D. 

      Mica

    • E. 

      Quartz

  • 32. 
    Phyllite is a rock type formed by ________ metamorphism  
    • A. 

      Contact

    • B. 

      Hydrothermal

    • C. 

      Regional

    • D. 

      Shock

  • 33. 
    Hornfels is a rock type formed by ________ metamorphism  
    • A. 

      Contact

    • B. 

      Hydrothermal

    • C. 

      Regional

    • D. 

      Shock