造山紀

Chinese

orogenic period
trad. (造山紀) 造山 紀
simp. (造山纪) 造山 纪

Pronunciation

Proper noun

造山紀

  1. (geology) the Orosirian period (part of the Paleoproterozoic era, spanning from 2.05 to 1.8 billion years ago)
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