Geologic Period

A Geologic Period is a Geologic Time that ...

• AKA: Period (Geology).
  • …
• Example(s):
  • Quaternary Period.
  • Neogene Period.
  • Paleogene Period.
  • Cretaceous Period.
  • Jurassic Period.
  • Triassic Period.
  • Permian Period.
  • Carboniferous Period.
  • Devonian Period.
  • Silurian Period.
  • Ordovician Period.
  • Cambrian Period.
  • …
  • Siderian Period.
  • …
• Counter-Example(s):
  • Geological Eon.
  • Geological Era.
  • Geological Epoch.
• See: Geologic Time, Geologist, Geologic Time Scale, Age (Geology).

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References

2014

• (Wikipedia, 2014) ⇒ http://en.wikipedia.org/wiki/Period_(geology) Retrieved:2014-9-20.
  • A geologic period is one of several subdivisions of geologic time enabling cross-referencing of rocks and geologic events from place to place.

    These periods form elements of a hierarchy of divisions into which geologists have split the earth's history.

     Eons and eras are larger subdivisions than periods while periods themselves may be divided into epochs and ages.

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