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Henkel, Susann; Staubwasser, Michael; Kasemann, Simone A; Meixner, Anette; Kasten, Sabine (2024): Solid phase geochemistry of a multicorer core and a gravity core at Station HE443/10, North Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971563, 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: 2024-08-12DOI registered: 2024-09-10

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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 before splitting the samples for the different kinds of analyses.
Keyword(s):
Helgoland mud area; North Sea; pore water; sediment; sequential iron extractions; stable iron isotopes
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
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:
Median Latitude: 54.086085 * Median Longitude: 7.969670 * South-bound Latitude: 54.085670 * West-bound Longitude: 7.969170 * North-bound Latitude: 54.086500 * East-bound Longitude: 7.970170
Date/Time Start: 2015-04-30T09:52:59 * Date/Time End: 2015-04-30T10:15:59
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 4.750 m
Event(s):
HE443/10-2 * Latitude: 54.085670 * Longitude: 7.969170 * Date/Time: 2015-04-30T09:52:59 * Elevation: -30.0 m * Location: North Sea * Campaign: HE443 * Basis: Heincke * Method/Device: MultiCorer (MUC)
HE443/10-3 * Latitude: 54.086500 * Longitude: 7.970170 * Date/Time: 2015-04-30T10:15:59 * Elevation: -29.7 m * Location: North Sea * Campaign: HE443 * Basis: Heincke * Method/Device: Gravity corer (GC)
Comment:
The data have been partially published in PANGAEA before (Aromokeye, D A et al., 2018), but with core depth, not sediment depths.
Methods:
Bulk elemental composition: Dissolution of dry sediment in a mixture of 65% HNO3 (3 ml), 30% HCl (2 ml), and 40% suprapur® HF (0.5 ml) in a CEM Mars Xpress microwave system. Elemental contents determined by ICP-OES (Inductively coupled plasma – optical emission spectroscopy; Iris Intrepid II).
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). Iron contents determined by ICP-OES (Inductively coupled plasma – optical emission spectroscopy; Iris Intrepid II ICP-OES)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventHenkel, Susann
2DEPTH, sediment/rockDepth sedmHenkel, SusannGeocode – core depth
3Depth, correctedDepth corrmHenkel, Susannactual depth
4Carbon, organic, totalTOC%Henkel, SusannCarbon-Sulfur analyzer, ELTRA, CS-2000wt%; after removal of inorganic carbon with HCl
5Nitrogen, totalTN%Henkel, Susannwt%
6Carbon, totalTC%Henkel, SusannCHSN Elemental Analyser, Elementar Analysen systeme GmbH, Germany, vario EL IIIwt%
7Carbon, inorganic, totalTIC%Henkel, Susannwt%
8AluminiumAlmg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
9BariumBamg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
10CalciumCamg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
11IronFemg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
12PotassiumKmg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
13MagnesiumMgmg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
14ManganeseMnmg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
15PhosphorusPmg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
16SulfurSmg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
17StrontiumSrmg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
18TitaniumTimg/gHenkel, SusannInductively coupled plasma-optical emission spectrometer (ICP-OES), Thermo Electron, Iris Intrepid II
19Acid volatile sulfidesAVS%Henkel, SusannHot extraction using 6 M HCl and trapping of extracted S as Ag2Swt%
20Chromium reducible iron (pyrite)CRFe%Henkel, SusannHot extraction using and a chromous chloride solution and trapping of extracted S as Ag2Swt%
21Iron, acetate-leachedFe-acamg/gHenkel, SusannSequential Fe extraction (Poulton & Canfield, 2005; Henkel et al., 2016)
22Iron, hydroxylamine-HCl-leachedFe-hyammg/gHenkel, SusannSequential Fe extraction (Poulton & Canfield, 2005; Henkel et al., 2016)
23Iron, dithionite-citrate-leachedFe-di-ctmg/gHenkel, SusannSequential Fe extraction (Poulton & Canfield, 2005; Henkel et al., 2016)
24Iron, oxalate-leachedFe-oxamg/gHenkel, SusannSequential Fe extraction (Poulton & Canfield, 2005; Henkel et al., 2016)
25Iron, reactiveFe reactmg/gHenkel, Susannsum of sequentially extracted Fe-aca, Fe-hyam, Fe-di-ct and Fe-oxa
26Iron in acid volatile sulfidesFe AVSmg/gHenkel, Susann
27Iron in pyriteFe Pymg/gHenkel, Susann
Size:
815 data points

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