固結紀(Statherian,符號PP4)是地質時代中的一個,開始於同位素年齡1800±0百萬年(Ma),結束於1600±0Ma。

固結紀期間藍藻細菌繁盛。

固結紀屬於前寒武紀元古宙古元古代;固結紀的上一紀為造山紀,下一紀為蓋層紀

參考資料

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