Hlíðarfjall

Deutsch: Der hyaloklastische Rücken Hlíðarfjall (Mývatn) gehört zum Vulkansystem der Krafla im Norden Islands beim See Mývatn. Es handelt sich um einen Vulkan, der unter Eiszeitgletschern in subglazialen Eruptionen v.a. aus Rhyolith aufgebaut wurde.

English: Hlíðarfjall is a hyaloclastic ridge in northern Iceland, to the northeast of Mývatn. The mountain was made by subglacial eruptions, esp. of rhyolite during the Ice Age.

Aerial views

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  Mount Hlíðarfjall in the foreground during volcano-tectonic episode with eruptions in 1984
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  Seen from Námafjall
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  Winter in the Krafla region
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  Aerial View of Reykjalið

Views of the volcano Hlíðarfjall

Seen from Mývatn

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  Skútustaðir
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  At Mývatn, in the summer
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  At the lake, in the winter
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  Near Dimmuborgir
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  North of Hverfjall
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  From Grjótagjá

Seen from Bjarnarflag geothermal power station

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  At Bjarnarflag
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  Also at Bjarnarflag
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Seen from Krafla caldera

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  With the maar Víti in the foreground
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  Behind Leirhnjúkur and with the hiking trail down to Reykjahllíð
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  Behind the steaming lavas at Leirhnjúkur

The origin of Hlíðarfjall: Subglacial eruptions

The eruptions in this case took probably place entirely under the glacier (within caves built by the heat of the volcano).

• 1. Water vapor cloud 2. Lake 3. Ice 4. Layers of lava and ash 5. Stratum 6. Pillow lavas 7. Magma conduit 8. Magma chamber 9. Dike

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  Diagram of a subglacial eruption