地磁気極性の変化,火山の頂点,南太平洋の野生動物の絶滅
1Graduate School of Oceanography, University of Rhode Island, Kingston 02881, USA.
Nature
|August 29, 1970
まとめ
火山活動のピークは地磁気極性移転と一致し,地球のマントルと磁場の変化との関連を示唆しています. これは,火山による気候変動による絶滅を説明するかもしれない.
科学分野:
- 地質物理学 地質物理学とは地質物理学です.
- 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
- 海洋地質学 海洋地質学
背景:
- 地磁気極性の逆転は,地球の歴史における重要なマーカーである.
- 深海の沈殿物は,過去の地質学および環境条件の記録を保存しています.
- 火山の活動は,世界の気候と生態系に影響を与える可能性があります.
研究 の 目的:
- 火山活動と地磁気極性の変化との関係を調査する.
- これらの現象と野生動物の絶滅の間の潜在的な関連性を調査する.
- 極性転換期における火山活動による気候の影響を理解する.
主な方法:
- 南極太平洋の水域からの深海の堆積物核の分析.
- 火山灰層 (火山マキシマム) と地磁気極性データとの相関.
- 特定された地質学的な出来事に関連して,野生動物の絶滅パターンの検討.
主要な成果:
- 観測された火山活動のピークと地磁気極性の変化の時期の間の偶然.
- 上層マントルの活動が地磁気極性シフトに影響を与える可能性があることを示唆する証拠.
- 火山によって引き起こされる気候変化と,極度の変化による動物絶滅の間の潜在的な相関.
結論:
- 上層マントルの活動と地磁気極性変化は関連しているようです.
- 地磁気極性移転中の火山による気候変化が,動物絶滅の説明になるかもしれない.
- 深海のコアデータは,地球のダイナミックな歴史に関する重要な洞察を提供します.
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