The emplacement of an obsidian dyke through thin ice: Hrafntinnuhryggur, Krafla Iceland

Hugh Tuffen, Jonathan M Castro

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An eruption along a 2.5 km-long rhyolitic dyke at Krafla volcano, northern Iceland during the last glacial period formed a ridge of obsidian (Hrafntinnuhryggur). The ridge rises up to 80 m above the surrounding land and is composed of a number of small-volume lava bodies with minor fragmental material. The total volume is
Original languageEnglish
Pages (from-to)352 - 366
Number of pages15
JournalJournal of Volcanology and Geothermal Research
Issue number4
Publication statusPublished - 2009
Externally publishedYes

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