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Búrfell is a mountain in the south of Iceland

Búrfell is a mountain in the south of Iceland

Búrfell is a mountain in the south of Iceland, situated along the western boundary of Þjórsárdalur Valley.

The mountain is a basalt tuya, with ...
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Búrfell is a mountain in the south of Iceland, situated along the western boundary of Þjórsárdalur Valley.

The mountain is a basalt tuya, with tuya being a type of volcano formed when lava erupts through an ice cap or a glacier. These mountains are recognisable by their distinct shape of a flat top and steep sides. Such mountains are rather rare worldwide, confined to areas where active volcanism is occurring at the same time as glacial coverage. Lava which erupts under a glacier cools relatively quickly and is restricted from travelling far, so as a result, the lava piles up into a steep-sided hill.
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