赤道太平洋の地震反射器は,世界の海洋学的な出来事の指標として使用されています
Science (New York, N.Y.)
|August 15, 1986
まとめ
太平洋のネオゲンの地震反射器は,海洋化学の変化と地球循環のシフトに関連しています. 溶解とダイアゲネシスによって引き起こされるこれらの現象は,海面の変化と相関しています.
科学分野:
- 海洋地質学 海洋地質学
- パレオセアノグラフィー
- 地震学 地震学とは
背景:
- 中央赤道太平洋のネオゲン堆積物には,地域的に相関する地震の地平線が含まれています.
- これらの地震反射器の起源を理解することは,古海洋学的な再構築に不可欠です.
研究 の 目的:
- 中央赤道太平洋のネオゲン沈殿物における地震の地平線の起源を調査する.
- 地震反射器,海洋化学,地球循環パターンとの関係を分析する.
主な方法:
- 地震データを分析するために地震モデリングが採用されました.
- 深海掘削プロジェクト (DSDP) のコアについて,詳細なストラティグラフィックと物理特性分析が行われました.
主要な成果:
- 地域的に追跡可能な地震反射器は同期し,特定の地質学的な出来事と関連しています.
- 若い反射器は,炭酸塩溶解の出来事によるもので,古い反射器は,ダイアゲネティックなプロセスによるものです.
- これらの出来事に関連した海洋化学の変化は,地球循環の再編成,特に北大西洋底水の再編成と相関しています.
結論:
- 特定された深海の地震の地平線は,ネオゲネスの主要な相対的な海面イベントと相関しています.
- 地震の地平線は,過去の海洋学および地質学的な出来事を理解するための貴重なマーカーを提供します.
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