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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: 2024-08-12DOI 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. Extracts deriving from the sequential extraction of Fe phases were processed for stable Fe isotope analysis after Henkel et al. (2016).
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
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
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):
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:
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventHenkel, Susann
DEPTH, sediment/rockDepth sedmHenkel, SusannGeocode – core depth
Depth, correctedDepth corrmHenkel, Susannactual depth
δ56/54Feδ56/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-aca
δ56/54Feδ56/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-aca
δ56/54Fe, standard deviationδ56/54Fe std dev±Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-aca; 2SD
δ57/54Feδ57/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-aca
δ57/54Fe, standard deviationδ57/54Fe std dev±Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-aca; 2SD
Number of analysesN analyses#Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-aca
10 δ56/54Feδ56/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-hyam
11 δ56/54Fe, standard deviationδ56/54Fe std dev±Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-hyam; 2SD
12 δ57/54Feδ57/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-hyam
13 δ57/54Fe, standard deviationδ57/54Fe std dev±Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-hyam; 2SD
14 Number of analysesN analyses#Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-hyam
15 δ56/54Feδ56/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-di-ct
16 δ56/54Fe, standard deviationδ56/54Fe std dev±Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-di-ct; 2SD
17 δ57/54Feδ57/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-di-ct
18 δ57/54Fe, standard deviationδ57/54Fe std dev±Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-di-ct; 2SD
19 Number of analysesN analyses#Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-di-ct
20 δ56/54Feδ56/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-oxa
21 δ56/54Fe, standard deviationδ56/54Fe std dev±Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-oxa; 2SD
22 δ57/54Feδ57/54FeHenkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-oxa
23 δ57/54Fe, standard deviationδ57/54Fe std dev±Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-oxa; 2SD
24 Number of analysesN analyses#Henkel, SusannMulti-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)Fe-oxa
Size:
260 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Event

Depth sed [m]
(core depth)

Depth corr [m]
(actual depth)

δ56/54Fe []
(Fe-aca)

δ56/54Fe []
(Fe-aca)

δ56/54Fe std dev [±]
(Fe-aca; 2SD)

δ57/54Fe []
(Fe-aca)

δ57/54Fe std dev [±]
(Fe-aca; 2SD)

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 0.100.26-0.15-0.150.06-0.230.163-0.030.10-0.21-0.37
HE443/10-30.300.46-0.20-0.200.16-0.280.256-0.17-0.160.160.26-0.09-0.21
HE443/10-30.500.66-0.30-0.300.27-0.400.455-0.14-0.220.180.28-0.120.07-0.170.263
HE443/10-30.700.86-0.13-0.130.13-0.130.323-0.080.07-0.110.0630.150.060.300.062-0.13-0.07
HE443/10-31.201.36-0.24-0.240.11-0.360.084-0.270.05-0.330.0930.190.36-0.11-0.07
HE443/10-31.401.56-0.14-0.140.07-0.190.174-0.19-0.380.140.24-0.08-0.17
HE443/10-31.601.76-0.22-0.220.18-0.310.384-0.31-0.470.220.32-0.08-0.14
HE443/10-31.801.96-0.18-0.180.16-0.260.294-0.180.02-0.240.1130.210.40-0.10-0.22
HE443/10-32.002.160.090.090.170.140.364-0.19-0.300.230.40-0.120.12-0.090.032
HE443/10-32.202.36-0.26-0.260.21-0.320.305-0.05-0.170.230.42-0.090.03-0.110.012
HE443/10-32.402.56-0.41-0.410.11-0.630.145-0.240.01-0.310.0820.120.060.130.072-0.12-0.11
HE443/10-32.602.76-0.52-0.520.20-0.780.295-0.25-0.500.250.430.000.09
HE443/10-32.802.96-0.34-0.340.08-0.500.144-0.160.05-0.300.3330.170.010.220.2920.020.02
HE443/10-33.003.16-0.29-0.290.05-0.440.174-0.22-0.230.160.28-0.08-0.00
HE443/10-33.203.36-0.25-0.250.13-0.370.254-0.320.03-0.450.012-0.14-0.14
HE443/10-33.403.56-0.22-0.220.22-0.330.355-0.220.01-0.320.1720.150.000.190.202-0.040.01-0.080.053
HE443/10-33.803.96-0.39-0.390.11-0.540.205-0.23-0.270.250.35-0.110.04-0.130.143
HE443/10-34.204.36-0.54-0.540.21-0.800.266-0.07-0.130.180.32-0.05-0.00