Jordan Phethean, University of Derby, Derby, United Kingdom, Alexander Peace, McMaster University, School of Geography and Earth Sciences, Hamilton, ON, Canada, Dieter Franke, BGR Federal Institute for Geosciences and Natural Resources, Hannover, Germany, Gillian R Foulger, University of Durham, Department of Earth Sciences, Durham, United Kingdom, Christian Schiffer, Uppsala University, Aarhus C, Denmark, J.Kim Welford, Memorial University, St John's, NL, Canada, Greg McHone, 9 Dexters Lane, New Brunswick, Canada, Sergio Rocchi, ARRAY(0xb710d9dc), Pisa, Italy, Michael Schnabel, BGR, Hannover, Germany and Anthony G Doré, Statoil, London, United Kingdom