/* DATA DESCRIPTION: Citation: Keir, Robin; Schmale, Oliver; Walter, Maren; Sültenfuß, Jürgen; Seifert, Richard; Rhein, Monika (2008): (Appendix A) Methane, helium isotope and hydrogen data in water profile M68/1-64-CTD. PANGAEA, https://doi.org/10.1594/PANGAEA.706681, In supplement to: Keir, R et al. (2008): Flux and dispersion of gases from the "Drachenschlund" hydrothermal vent at 8°18'S, 13°30'W on the Mid-Atlantic Ridge. Earth and Planetary Science Letters, 270, 338-348, https://doi.org/10.1016/j.epsl.2008.03.054 Project(s): From Mantle to Ocean: Energy-, Material- and Life-cycles at Spreading Axes (DERIDGE) (URI: https://www.geomar.de/forschen/fb4/fb4-muhs/projekte/spp1144/) Funding: German Research Foundation (DFG) (URI: http://www.dfg.de/en/), grant/award no. 5471797: From Mantle to Ocean: Energy-, Material- and Life-cycles at Spreading Axes (URI: https://gepris.dfg.de/gepris/projekt/5471797) Coverage: MEDIAN LATITUDE: -8.297150 * MEDIAN LONGITUDE: -13.509685 * SOUTH-BOUND LATITUDE: -8.298500 * WEST-BOUND LONGITUDE: -13.520670 * NORTH-BOUND LATITUDE: -8.295800 * EAST-BOUND LONGITUDE: -13.498700 DATE/TIME START: 2006-05-25T10:03:00 * DATE/TIME END: 2006-05-25T10:03:00 MINIMUM DEPTH, water: 2568.6 m * MAXIMUM DEPTH, water: 2958.7 m Event(s): M68/1-64-CTD (M68/1-64-120) * LATITUDE START: -8.298500 * LONGITUDE START: -13.520670 * LATITUDE END: -8.295800 * LONGITUDE END: -13.498700 * DATE/TIME: 2006-05-25T10:03:00 * ELEVATION: -2963.0 m * CAMPAIGN: M68/1 (MARSUED3) (URI: https://doi.org/10.2312/cr_m68-1) * BASIS: Meteor (1986) (URI: https://en.wikipedia.org/wiki/RV_Meteor_(1986)) * METHOD/DEVICE: CTD/Rosette (CTD-RO) * COMMENT: Nibelungen, tow-yo Parameter(s): DEPTH, water [m] (Depth water) * GEOCODE Bottle number (Bottle) * PI: Keir, Robin (rkeir@geomar.de) Methane [nmol/l] (CH4) * PI: Keir, Robin (rkeir@geomar.de) * METHOD/DEVICE: Gas chromatography Helium, dHe-3 [%] (DELHE3) * PI: Keir, Robin (rkeir@geomar.de) * METHOD/DEVICE: Mass spectrometer MAP215-50 Hydrogen [nmol/l] (H2) * PI: Keir, Robin (rkeir@geomar.de) * METHOD/DEVICE: Gas chromatography License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 82 data points */ Depth water [m] Bottle CH4 [nmol/l] DELHE3 [%] H2 [nmol/l] 2568.6 11 1.45 4.45 1.78 2671.3 17 3.14 4.32 28.26 2704.0 21 26.62 6.32 440.15 2706.5 14 1.69 4.63 2724.5 16 202.14 19.50 2075.10 2738.0 20 54.46 8.95 806.20 2753.8 18 55.98 8.61 783.30 2760.1 2 4.45 4.58 43.01 2762.7 4 1.79 7.49 2763.8 8 2.65 19.67 2764.7 6 2.27 13.07 2774.1 10 10.94 4.94 123.82 2795.6 22 40.62 7.21 641.42 2834.9 9 7.78 67.70 2850.0 1 9.12 4.85 61.77 2852.4 7 5.52 4.79 24.42 2855.9 13 7.88 4.95 65.18 2862.6 5 7.04 3.87 67.87 2863.6 19 14.10 5.78 206.02 2900.6 3 6.83 43.85 2908.9 15 6.61 4.67 44.64 2958.7 12 3.16 4.30 12.76