ビチニア・オペルキュラに基づいたイギリス四国紀の年代表の枠組み
Kirsty E H Penkman1, Richard C Preece, David R Bridgland
1BioArCh, Department of Archaeology, University of York, York YO10 5DD, UK. kirsty.penkman@york.ac.uk
Nature
|August 2, 2011
まとめ
ガストロポッドのオペルキュラを用いたアミノストラティグラフィは,イギリス四季期のシーケンスに堅固なタイムラインを提供します. この方法は,陸上の記録を海洋の同位体段階とリンクし,氷河期と氷河間周期を通して人間の占領パターンを明らかにします.
科学分野:
- 古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは
- 四次地質学 四次地質学
- バイオストラティグラフィー
背景:
- 地球の四季期の特徴は,周期的な氷河期と氷河間期であり,地上の記録の相関関係に挑戦しています.
- アミノストラトグラフィは,陸上の配列を海洋の同位体段階 (MIS) と一致させるための潜在的な方法を提供します.
研究 の 目的:
- 淡水ガストロポッドのオペルキュラを使用して,イギリスプレイストセンのための包括的なアミノストラティグラフィを開発する.
- 四次元の地上のシーケンスについて,堅固な年代測定の枠組みを確立する.
主な方法:
- イギリスの74か所から470のオペルカルのアミノ酸分解 (Asx, Glx, Ser, Ala, Val) の分析.
- タンパク質の分解程度に基づく相対的な年齢ランキング.
主要な成果:
- 既存の層学データと一致する新しいアミノストラティグラフィが確立されました.
- アングリア (MIS 12) とホロセンの間の4つの氷河期間の段階が確認されました.
- イギリスにおける人間の居住は,MIS 15後の氷河期間の段階で特定され,MIS 5eの間は存在しなかった.
- アプトン・ウォーレン・インタースタジアム・オプティムがMIS 3より前のものであることを確認.
結論:
- 新しいアミノストラティグラフィは,四次元の研究のための信頼できる枠組みを提供します.
- 過去の気候,バイオストラティグラフィ,考古学的出来事の詳細な再構築をサポートします.
- 重要な四年生期における人間の存在と不在の理解を洗練する.
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