Henkel, Susann; Kasten, Sabine; Hartmann, Jan; Silva Busso, A; Staubwasser, Michael (2018): Pore water geochemistry of sediment core Potter_Cove_STA10 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.890331, In supplement to: Henkel, S et al. (2018): Iron cycling and stable Fe isotope fractionation in Antarctic shelf sediments, King George Island. Geochimica et Cosmochimica Acta, https://doi.org/10.1016/j.gca.2018.06.042
Always quote citation above when using data! You can download the citation in several formats below.
Further details:
Lohan, Maeve C; Aguilar-Islas, Ana M; Franks, Robert P; Bruland, Kenneth W (2005): Determination of iron and copper in seawater at pH 1.7 with a new commercially available chelating resin, NTA Superflow. Analytica Chimica Acta, 530(1), 121-129, https://doi.org/10.1016/j.aca.2004.09.005
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
Seeberg-Elverfeldt, Jens; Schlüter, Michael; Feseker, Tomas; Kölling, Martin (2005): Rhizon sampling of pore waters near the sediment/water interface of aquatic systems. Limnology and Oceanography: Methods, 3, 361-371, https://doi.org/10.4319/lom.2005.3.361
Stookey, Lawrence L (1970): Ferrozine - A new spectrophotometric reagent for iron. Analytical Chemistry, 42, 779-781, https://doi.org/10.1021/ac60289a016
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Latitude: -62.226030 * Longitude: -58.659730
Date/Time Start: 2012-02-08T00:00:00 * Date/Time End: 2012-02-08T00:00:00
Minimum DEPTH, sediment/rock: -0.01 m * Maximum DEPTH, sediment/rock: 0.38 m
Event(s):
Comment:
Methods:
Sampling:
• Rhizon technique (Seeberg-Elverfeldt et al. 2005)
SO42-:
• Ion chromatography (Metrohm IC Net 2.3)
Fe2+:
• Ferrozine method (Stookey 1970)
NH4+:
• conductometrically
Alkalinity:
• Titration with HCl
δ56Fe(pw):
• Removal of salt matrix by column chromatography (NTA Superflow columns, Qiagen) (Lohan et al. 2005)
• Column separation using the Dowex 1X8 resin
• Isotope analysis on a ThermoFinnigan Neptune Multicollector-ICP-MS (ESI Apex-Q desolvator, standard-sample bracketing method with IRMM-014) (Schoenberg and von Blanckenburg 2005)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Core | Core | Henkel, Susann | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Henkel, Susann | Geocode | |
| 3 | Sulfate | [SO4]2- | mmol/l | Henkel, Susann | Ion chromatography (Metrohm IC Net 2.3) | |
| 4 | Iron 2+ | Fe2+ | µmol/l | Henkel, Susann | Iron, colorimetric, Ferrozine (Stookey, 1970) | |
| 5 | Alkalinity, total | AT | mmol(eq)/l | Henkel, Susann | Titration with HCl | |
| 6 | Ammonium | [NH4]+ | µmol/l | Henkel, Susann | Conductometry | |
| 7 | Comment | Comment | Henkel, Susann | |||
| 8 | δ56/54Fe | δ56/54Fe | ‰ | Henkel, Susann | MC-ICP-MS Thermo-Finnigan Neptune | delta56Fe(pore water) [per mil], relative to IRMM-014 |
| 9 | δ56/54Fe, standard deviation | δ56/54Fe std dev | ± | Henkel, Susann | MC-ICP-MS Thermo-Finnigan Neptune | delta56Fe(pore water) [per mil], relative to IRMM-014 |
| 10 | Comment 2 (continued) | Comm 2 | Henkel, Susann |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
199 data points
Data
| 1 Core | 2 Depth sed [m] | 3 [SO4]2- [mmol/l] | 4 Fe2+ [µmol/l] | 5 AT [mmol(eq)/l] | 6 [NH4]+ [µmol/l] | 7 Comment | 8 δ56/54Fe [‰] | 9 δ56/54Fe std dev [±] | 10 Comm 2 |
|---|---|---|---|---|---|---|---|---|---|
| C | -0.01 | 26.07 | 0.0 | 2.33 | 5.0 | bottom water | |||
| C | 0.01 | 26.33 | 8.6 | 2.70 | 13.0 | ||||
| C | 0.02 | 26.30 | 29.6 | 2.72 | 28.0 | ||||
| C | 0.03 | 26.39 | 58.3 | 2.69 | 48.0 | ||||
| C | 0.04 | 26.34 | 74.6 | 2.74 | 53.0 | ||||
| C | 0.05 | 26.24 | 87.8 | 2.74 | 63.0 | ||||
| C | 0.06 | 27.12 | 90.1 | 2.62 | 73.0 | ||||
| C | 0.07 | 26.51 | 95.5 | 2.78 | 78.0 | ||||
| C | 0.08 | 26.36 | 80.7 | 2.77 | 90.0 | ||||
| C | 0.09 | 26.05 | 103.2 | 2.86 | 98.0 | ||||
| C | 0.10 | 26.48 | 96.9 | 3.11 | 98.0 | ||||
| C | 0.12 | 26.13 | 103.9 | 2.95 | 103.0 | ||||
| C | 0.14 | 26.41 | 88.3 | 3.03 | 110.0 | ||||
| C | 0.16 | 26.42 | 78.9 | 3.05 | 125.0 | ||||
| C | 0.18 | 26.30 | 64.8 | 3.23 | 138.0 | ||||
| C | 0.20 | 26.24 | 45.3 | 3.42 | 157.0 | ||||
| C | 0.22 | 26.04 | 18.0 | 3.74 | 177.0 | ||||
| C | 0.24 | 25.91 | 12.9 | 3.85 | 187.0 | ||||
| C | 0.26 | 25.98 | 8.5 | 3.98 | 200.0 | ||||
| C | 0.28 | 25.90 | 6.0 | 4.13 | 202.0 | ||||
| C | 0.30 | 25.74 | 6.7 | 4.33 | 210.0 | ||||
| C | 0.32 | 25.73 | 10.4 | 4.35 | 212.0 | ||||
| C | 0.34 | 25.45 | 13.2 | 4.43 | 220.0 | ||||
| C | 0.36 | 25.20 | 18.8 | 222.0 | |||||
| B | 0.02 | -0.89 | 0.07 | ||||||
| B | 0.03 | -0.70 | 0.07 | ||||||
| B | 0.04 | -0.68 | 0.07 | ||||||
| B | 0.05 | -0.74 | 0.08 | ||||||
| B | 0.06 | -0.70 | 0.08 | ||||||
| B | 0.07 | -0.69 | 0.07 | ||||||
| B | 0.08 | -0.70 | 0.09 | ||||||
| B | 0.09 | -0.72 | 0.09 | ||||||
| B | 0.10 | -0.50 | 0.11 | ||||||
| B | 0.10 | -0.57 | 0.08 | replicate | |||||
| B | 0.14 | -0.52 | 0.10 | ||||||
| B | 0.16 | -0.91 | 0.08 | ||||||
| B | 0.18 | -0.91 | 0.11 | ||||||
| B | 0.22 | -0.52 | 0.11 | ||||||
| B | 0.22 | -0.32 | 0.26 | replicate | |||||
| B | 0.24 | -0.56 | 0.11 | ||||||
| B | 0.26 | -0.43 | 0.11 | ||||||
| B | 0.28 | 0.21 | 0.11 | ||||||
| B | 0.28 | 0.31 | 0.25 | replicate | |||||
| B | 0.30 | 0.14 | 0.09 | ||||||
| B | 0.30 | 0.12 | 0.08 | replicate | |||||
| B | 0.32 | -0.29 | 0.09 | ||||||
| B | 0.34 | -0.12 | 0.10 | ||||||
| B | 0.36 | -0.43 | 0.48 | ||||||
| B | 0.38 | -1.01 | 0.08 |