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Unnamed submarine volcano in the Pacific Ocean

Northern EPR at 10.7°N

割れ目火口 · Undersea Features · 2900m (海底)

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
Undersea Features
地域
Eastern Pacific Volcanic Regions / 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
Intraplate / Oceanic crust (< 15 km)
火山地形
Cluster
主要岩石
Basalt / Picro-Basalt
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

概要 (VEI時系列)
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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)

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。