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St. Michael volcanic field

St. Michael

Medan gunung api · United States · 715 m

The St. Michael volcanic field consists of more than 55 cones and craters across Stuart Island (upper left) and the peninsula in the center of this 18 August 2020 Sentinel-2 satellite image (N is at the top; this image is approximately 40 km across). The field covers more than 3,000 km2. The Stuart Hill cone is visible in the eastern side of Stuart island, and St. Michael Mountain is in the center of the peninsula area.
The St. Michael volcanic field consists of more than 55 cones and craters across Stuart Island (upper left) and the peninsula in the center of this 18 August 2020 Sentinel-2 satellite image (N is at the top; this image is approximately 40 km across). The field covers more than 3,000 km2. The Stuart Hill cone is visible in the eastern side of Stuart island, and St. Michael Mountain is in the center of the peninsula area. · Foto: Satellite image courtesy of Copernicus Sentinel Data, 2019.
Tipe
Medan gunung api
Negara
United States
Wilayah
North America Volcanic Regions / Northern Alaska-Bering Sea Volcanic Province
Ketinggian
715 m
Koordinat
63.450, -162.120
Letusan terakhir
Tidak diketahui
Kondisi tektonik
Intraplate / Continental crust (> 25 km)
Bentuk lahan
Cluster
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

The St. Michael volcanic field, at the south end of Norton Sound, includes more than 55 cones and craters on St. Michael and Stuart islands. Broad low shield volcanoes underlie the younger cones, and maars are located at the SW part of the field, which covers over 3,000 km2 and extends inland along the Golsovia and Kogok rivers. The youngest activity is of Holocene age, and native tradition says that a village was submerged by lava three times (Dall, 1870).

Ringkasan Wikipedia

Ringkasan Inggris

The St. Michael volcanic field is a volcanic field located on St. Michael and Stuart Islands in western Alaska, United States. It contains 55 cones and craters, including low broad shield volcanoes and maars. It is considered part of the Bering Sea Volcanic Province.

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