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Science (New York, N.Y.)
|April 22, 1994
PubMed
まとめ

クレタ紀中期の魚歯は,海洋の無酸素現象と大規模な火山地帯に関連した,低ストロンチウム同位体比の3つの期間を明らかにしています. これらのストロンチウム流は,白亜紀の地殻生産率によって予測されたよりも小さかった.

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