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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
North America Volcanic Regions / 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.

Wikipedia の要約

英語版の要約

Mount Kialagvik is a small, poorly known stratovolcano on the Alaska Peninsula of Alaska, United States, located in the Aleutian Range about 10 miles (16 km) northeast of Mount Chiginagak. It is informally named after the Iñupiaq word for nearby Wide Bay. Kialagvik has not erupted in historic time.

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