大火山噴火が最初の生物大絶滅の原因 未解明の原因が明らかに！ (IMAGE)

Tohoku University

大火山噴火が最初の生物大絶滅の原因 未解明の原因が明らかに！

Caption

Outcrop of the Upper Ordovician studied at Monitor Range in Nevada.　

Credit

David S. Jones

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Credit: David S. Jones

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