ホットスポットの活動と地磁気の Polarity Bias の相関

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タイトル別名
  • Correlation between Hotspot Activities and Magnetic Polarity Bias
  • ホット スポット ノ カツドウ ト チジキ ノ Polarity Bias ノ

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説明

Since the origins of hotspots are on the core-mantle boundary, activities of hotspots are expected to be affected by activities of the core. We have analyzed the correlation between the variations of the activity of Hawaiian hotspot and the geomagnetic polarity bias. The results suggest that the activity of the Hawaiian hotspot is enhanced in the period of the normal polarity bias. The time lag of the volume flux of the hotspot volcanism behind the polarity bias is a few millions of years. The correlation and lag can be explained in terms of the development and upwelling of the plume resulting from the core fluid motions.

収録刊行物

  • 地震　第２輯

    地震　第２輯 47 (4), 437-441, 1995

    公益社団法人 日本地震学会

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