本文へスキップ
← 地図に戻る
⇄ 比較

キャンドルマス島

Candlemas Island

成層火山 · United Kingdom · 550m

The glacier-covered peaks of Mount Andromeda (Ieft) and Mount Perseus (right) rise along the eastern side of Candlemas Island. Rocky beaches join this prominent southern part of the island to a low-relief ice-free area consisting of dark lava flows from Lucifer Hills in the north. Lucifer Hills is a complex of coalesced cinder cones with numerous active fumaroles, and dark clouds were seen emanating from the area in 1823 and 1911, indicating recent eruptions. A narrow spit, Demon Point, divides greenish Gorgon Pool from Kraken Cove (right). Medusa Pool lies below the cloud beyond Gorgon Pool. Vindication Island can be seen in the background, about 4.5 km from Candlemas. These two islands are part of the same volcanic edifice, with Vindication Island representing the oldest parts of the volcano.
The glacier-covered peaks of Mount Andromeda (Ieft) and Mount Perseus (right) rise along the eastern side of Candlemas Island. Rocky beaches join this prominent southern part of the island to a low-relief ice-free area consisting of dark lava flows from Lucifer Hills in the north. Lucifer Hills is a complex of coalesced cinder cones with numerous active fumaroles, and dark clouds were seen emanating from the area in 1823 and 1911, indicating recent eruptions. A narrow spit, Demon Point, divides greenish Gorgon Pool from Kraken Cove (right). Medusa Pool lies below the cloud beyond Gorgon Pool. Vindication Island can be seen in the background, about 4.5 km from Candlemas. These two islands are part of the same volcanic edifice, with Vindication Island representing the oldest parts of the volcano. · 写真: Photo by HMS Endurance (courtesy of John Smellie, British Antarctic Survey). · Wikimedia Commons
タイプ
成層火山
国
United Kingdom
地域
南極・スコシア / South Sandwich Volcanic Arc
標高
550m
座標
-57.080, -26.670
最終噴火
1911年
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 southern end of Candlemas Island consists of an eroded, glacier-covered basaltic stratovolcano cut by steep cliffs on the east. Lava flows along the cliff dip to the west, suggesting that the original summit vent was beyond the eastern shoreline. The northern end of the irregularly shaped, 6-km-long island consists of an andesitic-to-dacitic complex of scoria cones with radiating lava flows. These initially formed a separate island but now consist of a low attached platform that is estimated to be no more than a few hundred years old (LeMasurier and Thomson, 1990). Dark brown clouds mixed with white steam were reported in 1823 and 1911, but it has not been demonstrated which, if any, of the young north flank lava flows formed since the island was discovered in 1775. Geysers and hot pools have been observed on several occasions during the 20th century. Vindication Island, of possible Holocene age, is located 4.5 km west of Candlemas Island.

Wikipedia の要約

英語版の要約

Candlemas Island is a small uninhabited island of the Candlemas Islands in the South Sandwich Islands. It is one of about a dozen islands that make up the South Sandwich island arc, a chain of volcanoes in the Southern Ocean that was discovered in 1775 by James Cook. The volcanism is caused by the subduction of the South American Plate beneath the Sandwich Plate. The island is remote and rarely visited due to the often hostile weather conditions, but is populated by penguins and seabirds, which form large breeding colonies.

Wikipedia · CC BY-SA · 記事全文を読む →

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
1250 BCE~1062 BCE · 1件 · 最大 VEI ?1765~1953 · 3件 · 最大 VEI 21250 BCE496 BCE25710111765

詳細タイムライン

  1. 1953年VEI 0地質学的推定
    1953-12-31 ~ 進行中
    NW flank (Lucifer Hill)
  2. 1911年VEI 2観測記録
    1911-11-06 ~ 進行中
    NW flank (Lucifer Hill)
  3. 1823年VEI 2観測記録
    1823-07-02 ~ 進行中
    NW flank (Lucifer Hill)
  4. 紀元前 1250年VEI ?地質学的推定
    BCE 1250 ~ 進行中
    S Sandwich Is (probably Candlemass)

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。