Christophe Galerne, University of Bremen, MARUM Center for Marine Environmental Science, AG Petrology of the Ocean Crust, Bremen, Germany, Rainer Mohr, Divelogs, Aschau i. Ch., Germany, Achim Kopf, University of Bremen, Bremen, Germany, Rebecca Zitoun, IMOS Integrated Marine Observing System, Hobart, TAS, Australia and Arne Schwab, SchwaRTech, Achim, Germany