The Jøtul hydrothermal field: High H2 production in sediment-hosted hydrothermal vent fluids at an ultraslow spreading mid-ocean ridge

Alexander Diehl^1,2, Eirini Anagnostou^2,3, Patrick Monien², Thomas Pape^1,2, Eva-Maria Meckel³, Miriam Römer^1,2, Leila Mezri^1,2, Wolfgang Bach^1,2, Donata Monien⁴, Christian Hansen², Aaron Röhler², Katharina Streuff^1,2, Sabina Strmic Palinkas^5,6, Yann Marcon^1,2, Ines Barrenechea Angeles⁶, Charlotte Kleint^1,2, Stig‑Morten Knutsen⁷, Gerhard Bohrmann^1,2

1: MARUM – Center for Marine Environmental Sciences, University of Bremen, Germany; 2: Faculty of Geosciences, University of Bremen, Germany; 3: Department of Physics and Earth Sciences, Constructor University Bremen, Germany; 4: Leibniz-Centre for Tropical Marine Research (ZMT) GmbH, Bremen, Germany; 5: Department of Geosciences, UiT The Arctic University of Norway, Tromsø, Norway; 6: Department of Earth Science, University of Bergen, Norway; 7: Norwegian Offshore Directorate, Harstad, Norway