How is geological time measured?
1 Answer
May 22, 2018
- Geological time is measured using Eons, Eras, Periods, then Epochs
Explanation:
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Eons are the longest division of time based on the abundance of organisms
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Epochs are the smallest divisions of the geologic time.
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Eons are subdivided into eras of mass extinction events.
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Eras are subdivided into periods that are characterized by the appearance of different groups of organisms.
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The periods are subdivided into epochs the time when epochs end or begin is based on shorter and more recent geological events.
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Overall a geologist can record events on a geologic calendar which is divided into periods of time based on observable changes to life forms, geologic landforms, mass extinctions and change in climate patterns.
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-AN
