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海底地形 · 割れ目火口

Unnamed submarine volcano in the Pacific Ocean

Northern EPR at 10.7°N

タイプ
割れ目火口
標高
2900m (海底)
最終噴火
2003年
A temperature probe from the submersible vehicle Alvin collects data at a low-temperature hydrothermal vent located in a collapse structure in the East Pacific Rise area. The maximum temperatures reached only 9.5°C. This lava flow was erupted within only a few weeks to a few months of this November 2003 expedition. The flow was covered by bacterial mats, had large amounts of bacterial floc issuing from diffuse vents, and was sparsely populated by small animals.
A temperature probe from the submersible vehicle Alvin collects data at a low-temperature hydrothermal vent located in a collapse structure in the East Pacific Rise area. The maximum temperatures reached only 9.5°C. This lava flow was erupted within only a few weeks to a few months of this November 2003 expedition. The flow was covered by bacterial mats, had large amounts of bacterial floc issuing from diffuse vents, and was sparsely populated by small animals. · 写真: Photo courtesy J.R. Voight, 2003 (Ridge2000, National Science Foundation).
タイプ
割れ目火口
国
海底地形
地域
東太平洋 / Northern East Pacific Rise Volcanic Province
標高
2900m (海底)
座標
10.730, -103.580
最終噴火
2003年
テクトニクス環境
プレート内部 / 海洋地殻 (< 15 km)
火山地形
火山群
主要岩石
玄武岩 / ピクライト質玄武岩
地質学的概要

Divers in the submersible Alvin discovered an extremely fresh lava flow in an unexpected location at 10°44'N on the East Pacific Rise during an expedition in November 2003. The young flow was covered by bacterial mats, had large amounts of bacterial floc ("snow-blowers") issuing from diffuse vents, and was sparsely populated by small animals. Uranium-series dating indicated that the eruption had taken place within a time window only a few months to weeks prior to the observations. This segment of the East Pacific Rise, located just north of the Clipperton Transform Fault, is an area with an estimated low magma production rate.

噴火履歴

1件の記録用語集
概要 (VEI時系列)
バーをクリックすると個別の噴火が表示されます · 矢印キーで棒を移動、Enterで表示
2003~2003 · 1件 · 最大 VEI 020032003200420042004

詳細タイムライン

  1. 2003年VEI 0観測記録
    2003-05-31 ~ 2003-10-15
    East Pacific Rise (10.73°N)

近くの火山

外部リンク

⚠ 参考情報です。緊急対応には使用しないでください。