Henkel, Susann; Staubwasser, Michael; Kasemann, Simone A; Meixner, Anette; Kasten, Sabine (2024): Solid phase iron isotopic composition of a gravity core at Station HE443/10, North Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971567, In: Henkel, S et al. (2024): Pore-water and solid-phase data of a multicorer core and a gravity core at Station HE443/10, North Sea [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.971490
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Published: 2024-08-12 • DOI registered: 2024-09-10
Abstract:
Solid-phase samples were collected onboard (RV Heincke expedition HE443) using cut-off syringes. The MUC was sliced and sampled. For sampling the GC, small windows were drilled into the liner through which the syringes were introduced. All samples were stored anoxically and frozen at -20°C until processing. The processing involved freeze-drying and grinding. Extracts deriving from the sequential extraction of Fe phases were processed for stable Fe isotope analysis after Henkel et al. (2016).
Keyword(s):
Related to:
Henkel, Susann; et al. (in review): Stable iron isotope signals indicate a "pseudo-abiotic process driving deep iron release in methanic sediments.
References:
Henkel, Susann; Kasten, Sabine; Poulton, Simon W; Staubwasser, Michael (2016): Determination of the stable iron isotopic composition of sequentially leached iron phases in marine sediments. Chemical Geology, 421, 93-102, https://doi.org/10.1016/j.chemgeo.2015.12.003
Poulton, Simon W; Canfield, Donald E (2005): Development of a sequential extraction procedure for iron: implications for iron partitioning in continentally derived particulates. Chemical Geology, 214(3-4), 209-221, https://doi.org/10.1016/j.chemgeo.2004.09.003
Schoenberg, Ronny; von Blanckenburg, Friedhelm (2005): An assessment of the accuracy of stable Fe isotope ratio measurements on samples with organic and inorganic matrices by high-resolution multicollector ICP-MS. International Journal of Mass Spectrometry, 242(2-3), 257-272, https://doi.org/10.1016/j.ijms.2004.11.025
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0874A: Ozeane unter Stress: APOC - Anthropogene Einflüsse auf den Kreislauf partikulären organischen Kohlenstoffs in der Nordsee
Coverage:
Latitude: 54.086500 * Longitude: 7.970170
Date/Time Start: 2015-04-30T10:15:59 * Date/Time End: 2015-04-30T10:15:59
Minimum DEPTH, sediment/rock: 0.10 m * Maximum DEPTH, sediment/rock: 4.20 m
Event(s):
Comment:
Methods:
Sequential Fe extraction after Poulton and Canfield (2005) and Henkel et al. (2016). Fe aca (1 M Na-acetate, 24 h, pH 4.5); Fe hyam (1 M hydroxylamine-HCl in 25% v/v acetic acid, 48 h); Fe di-ct (Na-dithionite (50 g L-1)/0.02 M Na-citrate, 2 h, pH 4.8); Fe oxa (0.2 M ammonium oxalate/0.17 M oxalic acid, 6 h).
Processing after Henkel et al. (2016). Column separation after Schoenberg and von Blanckenburg (2005). Isotope analysis on a ThermoScientific Neptune plus Multicollector-ICP-MS (standard-sample bracketing method with IRMM-014), Isotope Geochemistry Group at MARUM-Centre for Marine Environmental Sciences, University of Bremen.
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
260 data points
Data
1 Event | 2 Depth sed [m] (core depth) | 3 Depth corr [m] (actual depth) | 4 δ56/54Fe [‰] (Fe-aca) | 5 δ56/54Fe [‰] (Fe-aca) | 6 δ56/54Fe std dev [±] (Fe-aca; 2SD) | 7 δ57/54Fe [‰] (Fe-aca) | 8 δ57/54Fe std dev [±] (Fe-aca; 2SD) | 9 N analyses [#] (Fe-aca) | 10 δ56/54Fe [‰] (Fe-hyam) | 11 δ56/54Fe std dev [±] (Fe-hyam; 2SD) | 12 δ57/54Fe [‰] (Fe-hyam) | 13 δ57/54Fe std dev [±] (Fe-hyam; 2SD) | 14 N analyses [#] (Fe-hyam) | 15 δ56/54Fe [‰] (Fe-di-ct) | 16 δ56/54Fe std dev [±] (Fe-di-ct; 2SD) | 17 δ57/54Fe [‰] (Fe-di-ct) | 18 δ57/54Fe std dev [±] (Fe-di-ct; 2SD) | 19 N analyses [#] (Fe-di-ct) | 20 δ56/54Fe [‰] (Fe-oxa) | 21 δ56/54Fe std dev [±] (Fe-oxa; 2SD) | 22 δ57/54Fe [‰] (Fe-oxa) | 23 δ57/54Fe std dev [±] (Fe-oxa; 2SD) | 24 N analyses [#] (Fe-oxa) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
HE443/10-3 | 0.10 | 0.26 | -0.15 | -0.15 | 0.06 | -0.23 | 0.16 | 3 | -0.03 | 0.10 | -0.21 | -0.37 | |||||||||||
HE443/10-3 | 0.30 | 0.46 | -0.20 | -0.20 | 0.16 | -0.28 | 0.25 | 6 | -0.17 | -0.16 | 0.16 | 0.26 | -0.09 | -0.21 | |||||||||
HE443/10-3 | 0.50 | 0.66 | -0.30 | -0.30 | 0.27 | -0.40 | 0.45 | 5 | -0.14 | -0.22 | 0.18 | 0.28 | -0.12 | 0.07 | -0.17 | 0.26 | 3 | ||||||
HE443/10-3 | 0.70 | 0.86 | -0.13 | -0.13 | 0.13 | -0.13 | 0.32 | 3 | -0.08 | 0.07 | -0.11 | 0.06 | 3 | 0.15 | 0.06 | 0.30 | 0.06 | 2 | -0.13 | -0.07 | |||
HE443/10-3 | 1.20 | 1.36 | -0.24 | -0.24 | 0.11 | -0.36 | 0.08 | 4 | -0.27 | 0.05 | -0.33 | 0.09 | 3 | 0.19 | 0.36 | -0.11 | -0.07 | ||||||
HE443/10-3 | 1.40 | 1.56 | -0.14 | -0.14 | 0.07 | -0.19 | 0.17 | 4 | -0.19 | -0.38 | 0.14 | 0.24 | -0.08 | -0.17 | |||||||||
HE443/10-3 | 1.60 | 1.76 | -0.22 | -0.22 | 0.18 | -0.31 | 0.38 | 4 | -0.31 | -0.47 | 0.22 | 0.32 | -0.08 | -0.14 | |||||||||
HE443/10-3 | 1.80 | 1.96 | -0.18 | -0.18 | 0.16 | -0.26 | 0.29 | 4 | -0.18 | 0.02 | -0.24 | 0.11 | 3 | 0.21 | 0.40 | -0.10 | -0.22 | ||||||
HE443/10-3 | 2.00 | 2.16 | 0.09 | 0.09 | 0.17 | 0.14 | 0.36 | 4 | -0.19 | -0.30 | 0.23 | 0.40 | -0.12 | 0.12 | -0.09 | 0.03 | 2 | ||||||
HE443/10-3 | 2.20 | 2.36 | -0.26 | -0.26 | 0.21 | -0.32 | 0.30 | 5 | -0.05 | -0.17 | 0.23 | 0.42 | -0.09 | 0.03 | -0.11 | 0.01 | 2 | ||||||
HE443/10-3 | 2.40 | 2.56 | -0.41 | -0.41 | 0.11 | -0.63 | 0.14 | 5 | -0.24 | 0.01 | -0.31 | 0.08 | 2 | 0.12 | 0.06 | 0.13 | 0.07 | 2 | -0.12 | -0.11 | |||
HE443/10-3 | 2.60 | 2.76 | -0.52 | -0.52 | 0.20 | -0.78 | 0.29 | 5 | -0.25 | -0.50 | 0.25 | 0.43 | 0.00 | 0.09 | |||||||||
HE443/10-3 | 2.80 | 2.96 | -0.34 | -0.34 | 0.08 | -0.50 | 0.14 | 4 | -0.16 | 0.05 | -0.30 | 0.33 | 3 | 0.17 | 0.01 | 0.22 | 0.29 | 2 | 0.02 | 0.02 | |||
HE443/10-3 | 3.00 | 3.16 | -0.29 | -0.29 | 0.05 | -0.44 | 0.17 | 4 | -0.22 | -0.23 | 0.16 | 0.28 | -0.08 | -0.00 | |||||||||
HE443/10-3 | 3.20 | 3.36 | -0.25 | -0.25 | 0.13 | -0.37 | 0.25 | 4 | -0.32 | 0.03 | -0.45 | 0.01 | 2 | -0.14 | -0.14 | ||||||||
HE443/10-3 | 3.40 | 3.56 | -0.22 | -0.22 | 0.22 | -0.33 | 0.35 | 5 | -0.22 | 0.01 | -0.32 | 0.17 | 2 | 0.15 | 0.00 | 0.19 | 0.20 | 2 | -0.04 | 0.01 | -0.08 | 0.05 | 3 |
HE443/10-3 | 3.80 | 3.96 | -0.39 | -0.39 | 0.11 | -0.54 | 0.20 | 5 | -0.23 | -0.27 | 0.25 | 0.35 | -0.11 | 0.04 | -0.13 | 0.14 | 3 | ||||||
HE443/10-3 | 4.20 | 4.36 | -0.54 | -0.54 | 0.21 | -0.80 | 0.26 | 6 | -0.07 | -0.13 | 0.18 | 0.32 | -0.05 | -0.00 |