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ホドソン山

Hodson

成層火山 · United Kingdom · 835m

Glaciers descend the steep southern face of Visokoi Island from the flat-topped summit of Mount Hodson. Wordie Point (left) and Irving Point (right) lie respectively at the west and east sides of the 5.5 x 7 km wide island. The sea cliffs comprise interbedded lavas and pyroclastics. The cliffs at Wordie Point are formed by thick columnar-jointed lavas. Numerous basaltic scoria cones were constructed on the lower flanks of the island, including at Irving Point, and are thought to represent the most recent activity.
Glaciers descend the steep southern face of Visokoi Island from the flat-topped summit of Mount Hodson. Wordie Point (left) and Irving Point (right) lie respectively at the west and east sides of the 5.5 x 7 km wide island. The sea cliffs comprise interbedded lavas and pyroclastics. The cliffs at Wordie Point are formed by thick columnar-jointed lavas. Numerous basaltic scoria cones were constructed on the lower flanks of the island, including at Irving Point, and are thought to represent the most recent activity. · 写真: Photo by John Smellie (British Antarctic Survey). · Wikimedia Commons
タイプ
成層火山
国
United Kingdom
地域
Antarctic-Scotia Volcanic Regions / South Sandwich Volcanic Arc
標高
835m
座標
-56.712, -27.176
最終噴火
不明
テクトニクス環境
Subduction zone / Oceanic crust (< 15 km)
火山地形
Composite
主要岩石
Basalt / Picro-Basalt
地質学的概要

The largely ice-covered, 5.5 x 7 km Visokoi Island consists of a single stratovolcano, Mount Hodson, whose rounded summit lies west of the center of the island. Numerous basaltic scoria cones were constructed on the lower flanks of the island, which is part of the Traverse Islands in the northern part of the South Sandwich Island chain. The youthful morphology suggests recent volcanism (LeMasurier and Thomson, 1990). Possible eruptive activity was reported during 1830 and 1930.

Wikipedia の要約

ホドソン山 はサウスサンドウィッチ諸島のビソコイ島最高峰の山。標高1,005 m。山名はフォークランド諸島の知事であったArnold Wienholt Hodsonにちなんで名づけられた。1830年から1930年の間に噴火があったと言われている。

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噴火履歴

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
1830~1840 · 1件 · 最大 VEI ?1920~1930 · 1件 · 最大 VEI ?18301850188019001920

詳細タイムライン

  1. 1930年VEI ?地質学的推定
    1930 ~ 進行中
  2. 1830年VEI ?地質学的推定
    1830-09-22 ~ 進行中

外部リンク

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