[1] Orkuveita Reykjavíkur,Department of Earth Sciences
[2] GET,undefined
[3] CNRS UMR 5563,undefined
[4] Université Paul Sabatier,undefined
[5] Lamont- Doherty Earth Observatory,undefined
[6] Columbia University,undefined
[7] Institute of Earth Sciences,undefined
[8] University of Iceland,undefined
[9] University College London,undefined