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Geologic time scale: Quiz


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Question 1: Different spans of time on the time scale are usually delimited by major geological or paleontological events, such as ________.
Cretaceous–Tertiary extinction eventPermian–Triassic extinction eventGeologic time scaleExtinction event

Question 2: [12] The "Devonian" was named for the English county of ________, and the name "Carboniferous" was simply an adaptation of "the Coal Measures," the old British geologists' term for the same set of strata.

Question 3: [6] He also first proposed one of the principles underlying geologic time scales: the ________ of strata.
Global Boundary Stratotype Section and PointLaw of superpositionGeochronologyGlobal Standard Stratigraphic Age

Question 4: Detailed studies between 1820 and 1850 of the strata and fossils of ________ produced the sequence of geological periods still used today.
Eastern EuropeEuropeWestern EuropeBalkans

Question 5: Evidence from ________ indicates that the Earth is about 4.570 billion years old.
Radiocarbon datingIsotope geochemistryRadiometric datingGeologic time scale

Question 6: The "Jurassic" was named by a French geologist Alexandre Brogniart for the extensive marine ________ exposures of the Jura Mountains.
Karst topographyLimestoneCarbonate rockSedimentary rock

Question 7: In East Asia and Siberia, the same unit is split into Tommotian, ________, and Botomian stages.
DevonianCambrianGeologic time scaleCambrian explosion

Question 8: [14] He greatly furthered the newly created discipline of geochronology and published the world renowned book The Age of the Earth in 1913 in which he estimated the ________'s age to be at least 1.6 billion years.

Question 9: The ________ (the latest epoch) is too short to be shown clearly on this timeline.
Pleistocene10th millennium BCHoloceneGeologic time scale

Question 10: For example, in North America the Lower ________ is called the Waucoban series that is then subdivided into zones based on succession of trilobites.
Cambrian explosionCambrianDevonianGeologic time scale

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