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ÆON [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-06-03

English

Subject field(s)
  • Geology
  • Chronology
DEF

The longest phase of geologic time.

CONT

Earth's history has consisted of four eons, the Hadean or Priscoan, Archaean, Proterozoic, and Phanerozoic. The next-smallest subdivision of geologic time is the era.

Key term(s)
  • æon

French

Domaine(s)
  • Géologie
  • Chronologie
DEF

Intervalle de temps géologique le plus grand.

CONT

Les éons sont subdivisés en ères.

Spanish

Campo(s) temático(s)
  • Geología
  • Cronología
DEF

Unidad de tiempo geológico equivalente a mil millones de años [...]

OBS

Un eón se divide en diferentes eras geológicas.

OBS

El eón de la escala cronológica equivale al eonotema de la escala estratigráfica.

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