チリの氷河は,約3万6千年前に大きな進捗を終わらせた:いくつかの世界的な比較
まとめ
約3万6千年前,チリにある氷河が大きく進み,深刻な地球温暖化が起きていることを示唆している. しかし,この冷却現象は,ミランコビッチの気候変動理論と矛盾しています.
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
- 氷河学 氷河学とは
- 気候科学 気候科学
背景:
- 氷河の進歩は,気候変動の証拠を提供します.
- 過去の気候条件の再構築は,気候の動態を理解するために不可欠です.
研究 の 目的:
- 約3万6000年前にチリ南部で起きた大きな氷河の再開を調査する.
- この氷河現象に関連した世界的な気候条件を評価するために.
主な方法:
- 氷河堆積物の放射性炭素年代測定. 氷河堆積物の放射性炭素年代測定. 氷河堆積物の放射性炭素年代測定. 氷河堆積物の放射性炭素年代測定.
- 氷河,花,海洋学的証拠の分析.
- ユースタティック海面調査と比較.
主要な成果:
- 南チリでは,約3万6千年前に,氷河が大きく前進した.
- 証拠は,この期間に深刻な地球温暖化が起きたことを示唆しているが,すべての海洋学データや海面調査によって普遍的に支持されているわけではない.
- 観測された冷却は,ミランコビッチ理論の予測と矛盾しています.
結論:
- 氷河の進捗は,深刻な地球的な冷却の期間を示しています.
- この冷却の範囲と性質に関して,異なる古気候のプロクシーの間で不一致がある.
- この発見は,この特定の気候現象を説明するためにミランコビッチ理論の直接的適用性に異議を唱える.
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