4 I added geology and hotspot tags
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Is Iceland really an example of a hot-spot overlying a mantle plume?

2 a bit more background and link to actual paper
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Iceland has been cited as the location of a hot-spot overlying a mantle plume (similar to that of the Hawaii chain in the Pacific). Though, though for some time this model has been challenged (see Gillian Foulger's mantle plumes site, especially Lundin & Doré's article). 

How does the recent announcement thatthe recent announcement by Torsvik et al. (2015) — that south east Iceland is underlain by continental crust affect— affect this debate?Phys.org article

Reference

Iceland has been cited as the location of a hot-spot overlying a mantle plume (similar to that of the Hawaii chain in the Pacific). Though for some time this model has been challenged (see Gillian Foulger's mantle plumes site). How does the recent announcement that south east Iceland is underlain by continental crust affect this debate?Phys.org article

Iceland has been cited as the location of a hot-spot overlying a mantle plume (similar to that of the Hawaii chain in the Pacific), though for some time this model has been challenged (see Gillian Foulger's mantle plumes site, especially Lundin & Doré's article). 

How does the recent announcement by Torsvik et al. (2015) — that south east Iceland is underlain by continental crust — affect this debate?

Reference

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