1. Department of Ocean and Earth Science, University of Southampton, Southampton, UK.
2. Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, USA.
3. Institute of Earth Sciences, University of Iceland, Iceland.
4. CNRS/UMR 5563, Université Paul Sabatier, Toulouse, France.
5. Department of Earth Science, University College London, UK.
6. Reykjavik Energy, Reykjavik, Iceland.
7. Iceland GeoSurvey, Reykjavik, Iceland.
8. Department of Applied Geology, Curtin University, Perth, Western Australia.
9. Nano-Science Center, Department of Chemistry, University of Copenhagen, Copenhagen, Denmark.