Tungnafellsjökull

Tungnafellsjokull

성층화산 · Iceland · 1523m

The Tungnafellsjökull central volcano lies immediately to the NW of the massive Vatnajökull icecap. The ~ 4 x 9 km summit caldera is largely filled by the Tungnafellsjökull glacier (center). An ice-free caldera to the SE, Vonarskarð, measures about 8 km in diameter; the caldera rim is visible in this image as a ridge at top left. · 사진: Photo by Oddur Sigurdsson, 1986 (Icelandic National Energy Authority). · Wikimedia Commons

화산 유형: 성층화산
국가: Iceland
지역: Atlantic Ocean Volcanic Regions / Iceland Neovolcanic Rift Volcanic Province
해발: 1523m
좌표: 64.750, -17.916
마지막 분화: 미확인
판구조 환경: Rift zone / Oceanic crust (< 15 km)
화산 지형: Composite
주요 암석: Basalt / Picro-Basalt

지질학적 요약

The Tungnafellsjökull central volcano, located immediately NW of the massive Vatnajökull icecap, contains two calderas. One is largely filled by the Tungnafellsjökull glacier, and the other ice-free caldera located to the SE contains Pleistocene rhyolitic lavas. The volcano is largely of Pleistocene age, but postglacial flank fissures on the NE side have produced young basalts. The Hágöngur central volcano to the SW is part of this volcanic system.

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