熱帯サイクロンベベは,フナフティ環礁で新しい陸地を形成する
Science (New York, N.Y.)
|September 21, 1973
まとめ
トロピカルサイクロン"ベベ"は,フナフティ・アトールで18キロメートルの瓦の堤防を作り出した. 海上素材で作られたこの恒久的な形成は,熱帯嵐がアトール島群の形成の鍵であることを示唆しています.
科学分野:
- 地質学 地質学 地質学
- 海洋学 海洋学とは
- 環境科学 環境科学
背景:
- フナフティ・アトールは,1972年に発生した熱帯サイクロン"ベベ"の間,地質学的に重要な出来事を経験した.
- サイクロンは,アトルの海岸線に沿って巨大な瓦の防壁を作り出した.
研究 の 目的:
- 熱帯サイクロン"ビービー"によって作られた瓦の壁の形成と特徴を分析する.
- このイベントがアトール地形学に及ぼす長期的な影響を評価する.
主な方法:
- フナフティ環礁の堤防の地質学的観測.
- 材料の組成と起源の分析 (より深いオフショア水域から得られた).
主要な成果:
- フナフティ・アトールで18キロメートルの長さの瓦の防壁が形成されました.
- 堤防の材料は,オフショアで,より深い海洋環境から生じた.
- この地質学的な形成は,恒久的なようです.
結論:
- トロピカルサイクロンは,アトール構造に重大な影響を及ぼし,永久に変化させることができます.
- 嵐によって引き起こされる堆積物輸送は,アトール小島の形成において重要な役割を果たします.
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