English Explanatory Dictionary

Noachian epoch

English dictionary entry

Meanings

name
  1. The earliest of the Martian geologic epochs, approximately from 3,800 million years ago to 3,500 million years ago, marked by many large impact craters and followed by the Hesperian epoch.

Word forms

Noachian epoch the Noachian epoch

Etymology

Named for Noachis Terra.

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