Tags: Volcano.

The subglacial Esjufjöll volcano at the SE part of the Vatnajökull icecap north of Öraefajökull volcano consists of the Snaehetta central volcano and a large caldera. Most of the volcano including the 40 km2 caldera is covered by the icecap but parts of the SE flank are exposed in NW-SE-trending ridges. Most of the exposed rocks are mildly alkaline basalts but small amounts of rhyolitic rocks are also present.

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