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?
- Torsvik, TH, et al. (2015), PNAS online 30 March 2015. DOI: 10.1073/pnas.1423099112