地震アニソトロピーによるナツカ板の下の溝平行流は,地震アニソトロピーによる
まとめ
シーア波分裂は,ナスカプレートの下のマントルの流れが水平であり,溝並行であり,2Dの牽引ではないことを明らかにします. この流れパターンは,プレート構造と南米とカリブ海の地質学的な特徴に影響を与えます.
科学分野:
- 地質物理学 地質物理学とは地質物理学です.
- 地震学 地震学とは
- プレート・テクトニクス (プレート・テクトニクス)
背景:
- マントルの流れのダイナミクスは,プレート構造と地球の進化を理解するために不可欠です.
- シーア波分裂は,マントルのアニソトロピーとフローをイメージするための重要な技術です.
研究 の 目的:
- ナスカ,ココス,カリブ海プレートの下のマントルの流れパターンを調査する.
- 地震観測に対してマントルの流れの既存のモデルをテストする.
主な方法:
- SとSKSの地震段階からのシェア波分裂の分析.
- 地震アニソトロピーとストレインフィールドデータの解釈.
主要な成果:
- ナスカプレートの下のマントルの流れは,主に水平であり,溝と平行である.
- 2次元のマントル流動モデルは地震データと矛盾しています.
- 証拠によると,逆行的なスラブ運動と解離は,溝の平行流に寄与する.
結論:
- ナスカプレートの下の溝-並列マントルの流れは,地域構造学と地形学に影響を与えます.
- この流れは,太平洋と大西洋のマントルの貯水池間の物質の移転を容易にする.
- この発見は,プレート運動やアンデス山脈の変形など,様々な地質学的現象を説明している.
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