蓋層紀

Chinese

caprock period
trad. (蓋層紀) 蓋層 紀
simp. (盖层纪) 盖层 纪

Pronunciation

Proper noun

蓋層紀

  1. (geology) the Calymmian period (part of the Mesoproterozoic era, spanning from 1.6 to 1.4 billion years ago)
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