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南極 · 成層火山

スタージ島

Sturge Island

タイプ
成層火山
標高
1167m
最終噴火
不明
The roughly 32-km-long Sturge Island is shown in this 3 March 2019 Sentinel-2 satellite image (N is at the top). It is the southernmost of the three main Balleny islands, with Buckle and Young to the north.
The roughly 32-km-long Sturge Island is shown in this 3 March 2019 Sentinel-2 satellite image (N is at the top). It is the southernmost of the three main Balleny islands, with Buckle and Young to the north. · 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 / Balleny Hotspot Volcano Group
標高
1167m
座標
-67.400, 164.830
最終噴火
不明
テクトニクス環境
リフト帯 / 海洋地殻 (< 15 km)
火山地形
複成火山
主要岩石
粗面玄武岩 / テフライト・バサナイト
地質学的概要

Sturge is the largest and southernmost of the Balleny Islands, which are located just off the coast of Antarctica's Victoria Land. The 44-km-long island is completely mantled by an icecap and has a prominent summit, Russel Peak, at the northern end. "Volcanic activity" was reported on a U.S. Navy chart, but no indications of present or past activity were noted in 1959 (Catalog of Active Volcanoes of the World). No detailed geologic studies have been conducted in the inaccessible Balleny Islands.

Wikipedia の要約

英語版の要約

Sturge Island is one of the three main islands in the uninhabited Balleny Islands group located in the Southern Ocean. It lies 25 km (16 mi) southeast of Buckle Island and 95 km (59 mi) north-east of Belousov Point on the Antarctic mainland. The island also forms part of the Ross Dependency, claimed by New Zealand.

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