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Askja Caldera | Contrasts
WI_is159.jpg Dreki | Highland with Kollóttadyngja and lava fieldThumbnailsAskja Caldera | Contrasts

Askja represents a volcanic system with nested calderas north of Vatnajökull. The largest of those calderas, containing all the others, dates back to prehistoric times whereas the eruption of 1875 did not only lead to the formation of the lake Öskjuvatn, but also had widespread consequences due to ash fall, leading to a wave of emigration from Iceland. The bright rocks seen in this image represent pumice produced in the 1875 eruption.

Tuesday 3 September 2019 by Martin Mergili in Europe / Iceland (639 visits)