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Tindfjöll

Tindfjallajokull

Stratovolkan · Iceland · 1464 m

The broad massif of Tindfjallajökull is seen here from the ESE looking into the open 5 x 7 km summit caldera, with a rugged two-peaked rhyolitic dome in the center. The NW rim of the caldera is overtopped by the Tindfjallajökull icecap, which forms the smooth flat surface at the summit. Several small effusive eruptions occurred at the beginning of the Holocene.
The broad massif of Tindfjallajökull is seen here from the ESE looking into the open 5 x 7 km summit caldera, with a rugged two-peaked rhyolitic dome in the center. The NW rim of the caldera is overtopped by the Tindfjallajökull icecap, which forms the smooth flat surface at the summit. Several small effusive eruptions occurred at the beginning of the Holocene. · Foto: Photo by Oddur Sigurdsson, 1976 (Icelandic National Energy Authority). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Iceland
Wilayah
Atlantic Ocean Volcanic Regions / Iceland Neovolcanic Rift Volcanic Province
Ketinggian
1464 m
Koordinat
63.783, -19.716
Letusan terakhir
Tidak diketahui
Kondisi tektonik
Rift zone / Oceanic crust (< 15 km)
Bentuk lahan
Composite
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

Tindfjallajökull is one of the oldest late-Quaternary volcanoes of the eastern volcanic zone of Iceland, and has produced rocks of basaltic-to-rhyolitic composition. The NW rim of the 5-km-wide caldera is topped by an icecap. About a dozen small eruptions took place during the late Pleistocene or early Holocene, mostly from vents north and west of the caldera. Although previously thought to be the source of the nearby Thórsmörk Ignimbrite deposits, Moles et al. (2019) showed that they originated from Torfajökull (about 30 km NE).

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Tautan eksternal

⚠ Untuk referensi saja. Bukan untuk tanggap darurat.