10.1594/PANGAEA.967157Hättig, KatrinKatrinHättig0000-0001-7701-6180Varma, DevikaDevikaVarma0000-0001-9707-6690Louwye, StephenStephenLouwye0000-0003-4814-4313Schouten, StefanStefanSchoutenvan der Meer, Marcel T JMarcel T Jvan der Meer0000-0001-6454-1752PANGAEA2024Hydrogen isotopesIODPOxygen isotopesTemperatureEvent labelSample code/labelDEPTH, sediment/rockDepth, compositeAgeLaboratory code/labelAlkenone C37:2, δDAlkenone C37:2, δD, standard deviationReplicatesBranched and isoprenoid tetraether indexTetraether index of 86 carbon atomsSea surface temperatureAlkenone, unsaturation index UK'37Drilling/drill rigAccording to Sangiorgi (2021)Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, Delta VCalculated according to Hopmans et al. (2004); De Jonge et al. (2015)Calculated according to Schouten et al. (2007)Calculated according to Kim et al. (2010)Calculated according to Kim et al. (2012)Calculated from UK'37 (Prahl and Wakeham, 1987)Calculated from UK'37 (Müller et al, 1998)Exp307Joides ResolutionSangiorgi, FrancescaFrancescaSangiorgi0000-0003-4233-6154Dataset10.1029/2024PA0048523991 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalMid-Miocene (16.6 - 12.8 Ma) hydrogen isotopes of alkenones and sea temperatures are obtained from the sediment record of Integrated Ocean Discovery Program (IODP) Expedition 307, Site U1318 drilled in the Porcupine Basin, north east Atlantic at a water depth of ~ 400 m. We present a revised temperature record (cf Sangiorgi et al., 2021, doi:10.1029/2020PA004059). The polar fractions used in the study of Sangiorgi et al. (2021, doi:10.1029/2020PA004059) were re-analysed and integrated for TEX86H and along with the UK'37 record extended by 25 samples. Across the total record (269 samples), 124 ketone samples were analysed for the hydrogen isotopic compositions of C37 long chain alkenones (δ2HC37) with a GC-IRMS.-11.550666666667-11.55031666666751.435851.435833333333European Commissionhttps://doi.org/10.13039/501100000780847504Local training network: Netherlands Earth System Science Centre: “NESSC”