10.1594/PANGAEA.989650Walter, MarenMarenWalterUniversity of BremenMette, JonathanJonathanMette0009-0007-4463-2658University of BremenSültenfuß, JürgenJürgenSültenfuß0000-0003-3169-0422University of BremenPANGAEA2026Arctic OceanAURORA seamountCTD/RosetteHeliumhydrothermal activityisotopeLucky Bnoble gasEvent labelDATE/TIMEBottle numberDEPTH, waterSample massHelium-4Helium-3NeonHelium-3/Helium-4 ratioNeon/Helium ratioδ Helium-3δ Neon-22CTD/RosetteYoyo-CTDCTD, Sea-Bird SBE 911plusUltra high vacuum (UHV) mass spectrometryPS137PolarsternCenter for Marine Environmental Sciences (MARUM)Physical Oceanography @ AWI (AWI_PhyOce)2023-07-01T01:49:27/2023-07-26T15:46:44Dataset10.57738/BzPM_0781_202310.1080/10256010902871929540 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalThis dataset contains raw noble gas data from water samples collected during the cruise PS137. Additional metadata was taken from the CTD rosette system with which the samples were collected. The stations were executed in July 2023 to detect possible hydrothermal plumes along the Gakkel ridge and to assess the dispersal of hydrothermal plumes. From the isotope ratio different water masses can be distinguished. The samples were taken from Niskin bottles into gas tight copper tubes and transported to the Bremen Helium Isotope Laboratory. For the analysis, the smaples were extracted with an ultra high vaccum system and transferred into a fully automated mass spectrometric system, which is composed of a two stage cryogenic chamber and a quadrupole and a sector-field mass spectrometer. The system aswell as the performance is described in detail in Sültenfuß et al. (2009). The results of double samples taken for control purposes were averaged.Nml/kg, mass concentration = normal milliliter per kilogram-6.324112-3.39574181.35868383.806179German Research Foundationhttps://doi.org/10.13039/501100001659390741603EXC 2077: The Ocean Floor – Earth's Uncharted Interface