Tina van de Flierdt¹, Patric Simoes Pereira², Rachel A. Bertram², David James Wilson³, Sidney R Hemming⁴, Claus-Dieter Hillenbrand⁵, Gerhard Kuhn⁶, James A Smith⁵, Karsten Gohl⁶ and PS 104 Expedition scientists and IODP Expedition 318 scientists, (1)Imperial College London, London, SW7, United Kingdom, (2)Imperial College London, London, United Kingdom, (3)University College London, London, United Kingdom, (4)Lamont-Doherty Earth Observ, Palisades, NY, United States, (5)British Antarctic Survey, Cambridge, United Kingdom, (6)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany