have extensive ice cover. The 2009 m high Bárðarbunga
central volcano lies at the NW edge of the ice cap, with only its NW slopes ice
free. It is dominated by a 80 km2
and up to 700 m deep ice-filled caldera. Bedrock rises to 1850 m in the northwest caldera rim and is lowest in a
narrow gap the east rim where minimum elevation is 1350 m. The ice
free fissure swarm north of Vatnajökull
strikes
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