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南極 · 成層火山

プレアデス火山群

Pleiades, The

タイプ
成層火山
標高
3040m
最終噴火
-1050年
The Pleiades volcanic group is located in Melbourne Volcanic Province of Antarctica and is shown in the center of this 8 December 2019 Sentinel-2 satellite image (N is at the top; this image is approximately 20 km across). Mt. Pleiones is in the south of the southernmost exposed area, and Mt. Atlas forms the northeastern exposed area. Features to the north include the Alcyone and Taygete cones.
The Pleiades volcanic group is located in Melbourne Volcanic Province of Antarctica and is shown in the center of this 8 December 2019 Sentinel-2 satellite image (N is at the top; this image is approximately 20 km across). Mt. Pleiones is in the south of the southernmost exposed area, and Mt. Atlas forms the northeastern exposed area. Features to the north include the Alcyone and Taygete cones. · 写真: Satellite image courtesy of Copernicus Sentinel Data, 2020.
タイプ
成層火山
国
南極
地域
南極・スコシア / McMurdo Volcanic Province
標高
3040m
座標
-72.670, 165.500
最終噴火
-1050年
テクトニクス環境
プレート内部 / 大陸地殻 (> 25 km)
火山地形
複成火山
主要岩石
粗面安山岩 / 玄武岩質粗面安山岩
地質学的概要

The Pleiades volcano consists of the small trachytic Mount Pleiones stratovolcano which, along with several lava domes and nested cinder cones with well-preserved craters, rises above the broad Evans Neve plateau. Located in the Melbourne Volcanic Province of Antarctica's northern Victoria Land near the western coast of the Ross Sea, they appear to be among the youngest volcanic centers in Antarctica. A Potassium-Argon age of 3,000 years was obtained from the Taygete cone NNE of Mount Pleiones. Other dates of 12-40,000 years support a youthful age despite the large analytical uncertainties.

Wikipedia の要約

英語版の要約

The Pleiades are a volcanic group in northern Victoria Land of Antarctica. It consists of youthful cones and domes with Mount Atlas/Mount Pleiones, a small stratovolcano formed by three overlapping cones, being the dominant volcano and rising 500 m (1,600 ft) above the Evans Névé plateau. Two other named cones are Alcyone Cone and Taygete Cone, the latter of which has been radiometrically dated to have erupted during the Holocene. A number of tephra layers across Antarctica have been attributed to eruptions of this volcanic group, including several that may have occurred within the last few hundred years.

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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
紀元前 1050~紀元前 1050 · 1件 · 最大 VEI ?紀元前 1050紀元前 1050紀元前 1049紀元前 1049紀元前 1049

詳細タイムライン

  1. 紀元前 1050年 (±14000年)VEI ?地質学的推定
    紀元前 1050 ~ 終了日不明
    NE of Mount Pleiones (Taygete Cone)

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