Noachian epoch

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English[edit]

Etymology[edit]

Named for Noachis Terra.

Proper noun[edit]

the Noachian epoch

  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.

Further reading[edit]

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