search of new hydrothermal vent fields during expedition PS137 on board the icebreakers Polarstern and Kronprins Haakon. Icebreakers Kronprins Haakon and Polarstern at the Aurora Hydrothermal Ventfield (Photo:

particularly interested in the interaction of ocean and lithosphere at the enigmatic hydrothermal vents of the Arctic Ridge system. OBS deployment at the stormy Southwest Indian Ridge (Photo: Folke Mehrtens) [...] along an entire ultraslow ridge segment. Black Smoker (Photo: WHOI) How do the hydrothermal fields of Aurora, Jotul and Loki's Castle work? We are looking for answers in extensive microearthquake data sets