Henkel, Susann; Kasten, Sabine; Hartmann, Jan; Silva Busso, A; Staubwasser, Michael (2018): Pore water geochemistry of sediment core Potter_Cove_STA13 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.890304, 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
Sarazin, Gérard; Michard, Gil; Prevot, François (1999): A rapid and accurate spectroscopic method for alkalinity measurements in sea water samples. Water Research, 33(1), 290-294, https://doi.org/10.1016/S0043-1354(98)00168-7
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: -62.225290 * Longitude: -58.640380
Date/Time Start: 2013-02-19T00:00:00 * Date/Time End: 2013-02-19T00:00:00
Minimum DEPTH, sediment/rock: -0.01 m * Maximum DEPTH, sediment/rock: 0.40 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+:
• spectrophotometrically using a Multiskan microplate reader
Alkalinity:
• Spectrophotometrically after Sarazin et al. (1999) using a Multiskan microplate reader
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 | Spectrophotometry (Sarazin et al., 1999), Multiskan microplate reader | |
| 6 | Ammonium | [NH4]+ | µmol/l | Henkel, Susann | Spectrophotometry (Sarazin et al., 1999), Multiskan microplate reader | |
| 7 | Comment | Comment | Henkel, Susann |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
106 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 |
|---|---|---|---|---|---|---|
| B | -0.01 | 25.32 | 1.1 | 2.32 | 10.9 | bottom water |
| B | 0.01 | 24.54 | 157.3 | 3.55 | 95.3 | |
| B | 0.02 | 25.08 | 114.0 | 3.63 | 122.8 | |
| B | 0.03 | 24.20 | 99.0 | 4.23 | 88.0 | |
| B | 0.04 | 23.61 | 80.6 | 6.42 | 177.9 | |
| B | 0.05 | 22.89 | 59.1 | 7.30 | 192.0 | |
| B | 0.06 | 22.46 | 43.4 | 7.82 | 190.4 | |
| B | 0.07 | 21.61 | 102.3 | 8.30 | 205.9 | |
| B | 0.08 | 21.00 | 44.9 | 8.82 | 206.5 | |
| B | 0.09 | 20.37 | 56.3 | 8.86 | 208.6 | |
| B | 0.10 | 19.56 | 65.1 | 9.08 | 232.2 | |
| B | 0.13 | 18.94 | 67.1 | 9.39 | 235.1 | |
| B | 0.16 | 17.85 | 94.0 | 9.51 | 225.0 | |
| B | 0.19 | 16.78 | 68.2 | 9.48 | 232.4 | |
| B | 0.22 | 15.95 | 44.1 | 9.14 | 222.1 | |
| B | 0.25 | 14.78 | 38.6 | 9.27 | 217.7 | |
| B | 0.28 | 14.45 | 39.2 | 9.13 | 220.5 | |
| B | 0.31 | 14.07 | 41.4 | 8.64 | 210.4 | |
| B | 0.34 | 13.55 | 53.6 | 8.30 | 218.8 | |
| B | 0.37 | 12.93 | 78.3 | 7.47 | 200.9 | |
| B | 0.40 | 12.25 | 76.6 | 7.20 | 217.9 |