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Geologic Dating: Unit 5 Quiz

Quiz by Stephanie Hahlen

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24 questions
Show answers
  • Q1
    What process is associated with determining the absolute age of rocks or fossils
    relative dating
    cross dating
    radioactive dating
    superposition
    30s
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  • Q2
    The number of years since a rock formed is its
    relative age
    absolute age
    decay age
    intermediate age
    30s
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  • Q3
    Magma that cools and hardens into igneous rock beneath the surface
    fault
    unconformity
    extrusion
    intrusion
    30s
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  • Q4
    Along with being widely distributed, what other factor makes a fossil an index fossil?
    existing today
    being extremely young
    being extremely old
    Existing for a brief amount of time
    30s
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  • Q5
    A geologist is measuring the amount of radioactive uranium in a rock and comparing it to the amount of radioactive lead found in the sample. What is the geologist most likely trying to figure out?
    its density
    its mass
    its age
    its volume
    30s
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  • Q6
    What information can an index fossil help a scientist obtain?
    a name for another fossil
    the number of organisms in that species
    a relative date for another fossil
    an absolute date for another fossil
    30s
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  • Q7
    Which of the following might result in the geologic record being incomplete?
    There is a half-life
    There is an extrusion
    There is an intrusion
    There is an unconformity
    30s
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  • Q8
    What ancient climate might be associated with finding coral fossils?
    desert
    fresh water lake
    warm shallow ocean
    forest
    30s
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  • Q9
    What kind of elements are needed for radiometric dating?
    radio active isotopes
    isotopes
    gasses
    heavy elements
    30s
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  • Q10
    Why can't carbon-14 be used to date extremely old samples?
    It is only used for relative dating.
    It decays in a relatively short period of time.
    It can not be used for radioactive dating.
    It has no radioactive isotopes.
    30s
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  • Q11
    Which geologic principle states that in an undisturbed set of layers, the oldest is always found on the bottom and the youngest on the top?
    Law of Cross Cutting
    Law of Uniformitarianism
    Principle of Deposition
    Law of Superposition
    30s
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  • Q12
    What ancient climate might be associated with finding till?
    swamp
    glaciers
    ocean
    lake
    30s
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  • Q13
    The law of superposition is most relevant when studying which type of rock?
    sedimentary
    metamorphic
    igneous
    granite
    30s
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  • Q14
    What ancient climate might be associated with finding coal deposits?
    swamp
    desert
    glacier
    water
    30s
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  • Q15
    What ancient climate might be associated with finding salt deposits?
    swamp
    fresh water lake
    desert
    oceans
    30s
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    Delete
  • Q16
    What principle states that "the present is the key to the past"?
    Uniformitarianism
    Cross cutting
    Superstition
    Superposition
    30s
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  • Q17
    Is the fault in this picture older or younger than the layers it cuts through?
    Question Image
    Can not tell
    Younger
    Older
    Same age
    30s
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  • Q18
    Which of the following can help a scientist estimate geologic time?
    comparing fossils
    all of these
    observing a rock sequence
    radiometric dating
    30s
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  • Q19
    Using the principle of uniformatarianism, which of the following processes that can be observed today would be most like Earth during its early history when the surface was probably covered with an ocean of molten rock that eventually cooled into crust?
    water vapor in the upper atmosphere cools and condenses into rain
    lava from volcanic eruptions cools to form new islands
    ice crystals within glaciers slide over each other causing glacial movement
    heat and pressure cause the formation of metamorphic rocks
    30s
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  • Q20
    Using this geologic time scale, which division of time is the longest?
    Question Image
    period
    epoch
    event
    era
    30s
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