Noachian epoch

短语

词形变化

the Noachian epoch

释义与例句

name
  1. 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.

词源

Named for Noachis Terra.

来源：wiktionary