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Mount Kialagvik

Kialagvik

成層火山 · United States · 1677m

The SE side of a Holocene dome at Kialagvik rises 350 m above a surrounding glacier. It lies at the NE end of a segment of the Alaska Peninsula that includes neighboring Chiginagak and Yantarni volcanoes. Lava flows and overlying block-and-ash-flow deposits are exposed on the SW flank and in a small area on the NE flank.
The SE side of a Holocene dome at Kialagvik rises 350 m above a surrounding glacier. It lies at the NE end of a segment of the Alaska Peninsula that includes neighboring Chiginagak and Yantarni volcanoes. Lava flows and overlying block-and-ash-flow deposits are exposed on the SW flank and in a small area on the NE flank. · 写真: Photo courtesy of Alaska Volcano Observatory, U.S. Geological Survey. · Wikimedia Commons
タイプ
成層火山
United States
地域
北アメリカ / Alaska Peninsula Volcanic Arc
標高
1677m
座標
57.203, -156.745
最終噴火
不明
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

Kialagvik is a small, poorly known glacier-mantled stratovolcano NE of Chiginagak volcano with a Holocene central lava dome and associated pyroclastic-flow deposits (Riehle, in Wood and Kienle 1990). The central dome rises 350 m above an ice field that mantles the upper part of the volcano. Andesitic lava flows and overlying dacitic block-and-ash-flow deposits are exposed broadly on the SW flank and in a small area on the NE flank. No historical activity is known.

噴火履歴

詳細タイムライン

噴火記録はありません。

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。