Snæfell
Snaefell
成層火山 · Iceland · 1833m
- タイプ
- 成層火山
- 国
- Iceland
- 地域
- Atlantic Ocean Volcanic Regions / Iceland Neovolcanic Rift Volcanic Province
- 標高
- 1833m
- 座標
- 64.798, -15.560
- 最終噴火
- 不明
- テクトニクス環境
- Rift zone / Oceanic crust (< 15 km)
- 火山地形
- Composite
地質学的概要
The timing of the most recent activity in the Snæfell volcanic system, NE of Vatnajökull, is unknown. Four Holocene transitiional alkalic tephra units in a soild section near the volcano have compositions similar to known Snæfell eruption products (Oladottir and others, 2011). This stratovolcano is comprised of rhyolites and evolved basalts built in the last 400,000 years. Volcanic fissures trending NE-SW occur out to 10-18 km from the volcano. It lies on a volcanic belt outside the main volcanic zones. The Snæfell central volcano is Iceland’s highest volcanic peak outside of the large ice caps; it has a small glacier on its summit.
Wikipedia の要約
英語版の要約Snæfell at 1,833 m (6,014 ft) high, is an ice-capped stratovolcano located in the north-east part of Vatnajökull National Park, Iceland. While it has been dormant in the Holocene, it is now known to have had repose times of over 100,000 years between eruptions, so it cannot be assumed to be extinct.
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