“Frasnian-Famennian boundary event”的概念、定义、翻译、参考文献-科学参考

单词	Frasnian-Famennian boundary event
释义	Frasnian-Famennian boundary event Encyclopedia 理学弗拉期-法门期界线事件释 Frasnian-Famennian boundary event晚泥盆世弗拉—法门期界线事件发生在晚泥盆世弗拉期与法门期交界的生物绝灭事件。又称F-F事件。
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