10.1594/PANGAEA.950397Pape, ThomasThomasPape0000-0002-6872-2144Geprägs, PatriziaPatriziaGeprägsKölling, MartinMartinKölling0000-0003-2720-2211Zabel, MatthiasMatthiasZabel0000-0003-4681-1821Bohrmann, GerhardGerhardBohrmann0000-0001-9976-4948Wefer, GeroldGeroldWefer0000-0002-6803-2020PANGAEA2022DEPTH, sediment/rockMethane, porewaterGravity corerSO219A/2SonneCenter for Marine Environmental Sciences (MARUM)2012-03-26T07:27:00Dataseturn:nbn:de:gbv:46-00103574-1610.1029/2022GC01050210 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalShallow sediment cores were collected with gravity cores from sites in the Japan Trench during cruise SO219A with R/V SONNE. In order to determine ex-situ concentrations of methane dissolved in pore water, sediment samples were taken from the sediment cores with cut-off syringes and transferred into glass vials. Methane concentrations in the headspace gas were used to calculate concentrations of methane dissolved in pore water (uncorrected for sediment porosity and Bunsen coefficient).143.96021666667143.9602538.07276666666738.073233333333German Research Foundationhttps://doi.org/10.13039/501100001659220117657Investigation of seafloor displacement, submarine landslide and sediment dynamics related to the 2011 Magnitude 9.0 Tohoku-Oki Earthquake along the Japan Trench, and ROV operations to ocean bottom instruments and observatories