Henkel, Susann; Kasten, Sabine; Hartmann, Jan; Silva Busso, A; Staubwasser, Michael (2018): Pore water geochemistry of sediment core Maxwell_Bay_STA08 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.890297, 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: -62.175470 * Longitude: -58.808280
Date/Time Start: 2012-02-07T00:00:00 * Date/Time End: 2012-02-07T00:00:00
Minimum DEPTH, sediment/rock: -0.01 m * Maximum DEPTH, sediment/rock: 0.18 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 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
72 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 |
---|---|---|---|---|---|---|
C | -0.01 | 26.07 | #0.0 | 2.16 | 8.0 | bottom water, #0 = below quantification limit |
C | 0.01 | 26.61 | 40.5 | 2.48 | 23.0 | |
C | 0.02 | 75.8 | 2.48 | 45.4 | ||
C | 0.03 | 89.1 | 65.3 | |||
C | 0.04 | 92.4 | 2.56 | 70.3 | ||
C | 0.05 | 26.42 | 65.1 | 2.64 | 60.3 | |
C | 0.06 | 25.63 | 111.8 | 2.81 | 75.3 | |
C | 0.07 | 26.77 | 139.8 | 2.50 | 75.3 | |
C | 0.08 | 25.09 | 149.8 | 2.53 | 77.8 | |
C | 0.09 | 26.22 | 176.3 | 2.39 | 82.8 | |
C | 0.10 | 26.45 | 186.4 | 2.58 | 82.8 | |
C | 0.12 | 26.33 | 198.8 | 2.58 | 87.7 | |
C | 0.14 | 26.08 | 176.1 | 2.47 | 90.2 | |
C | 0.16 | 26.08 | 116.1 | 2.72 | 100.2 | |
C | 0.18 | 25.94 | 73.2 | 2.79 | 137.6 |