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Vosteen, Paul; Spiegel, Timo; Gledhill, Martha; Frank, Martin; Zabel, Matthias; Scholz, Florian (2022): Solid phase geochemistry (Al, Fe K, nitrate, organic carbon) of sediment core M147_89-1 (MUC17) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.950353, In: Vosteen, P et al. (2022): Solid phase sediment and pore water data (Al, Fe, K, nitrate, organic carbon) from the Amazon continental shelf (cruise M147) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.950248

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Abstract:
Total element concentrations (Fe, Al, K) of the solid phase were measured after acid digestion (HF, HNO3 and HClO4) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase iron speciation data were measured following single step sodium dithionite extraction (FeD) or sequential Fe extraction (FeAc, FeDith, FeOxal) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase pyrite concentrations (FePy) were calculated stoichiometrically from photometrically measured S2- released via chromium(II) chloride reduction. Total organic carbon (TOC) of the sediment samples was measured in an Elemental Analyzer (Euro EA). Prior to analysis carbon bound to carbonate minerals was removed by leaching the sediment with 0.25 N HCl.
Keyword(s):
continental shelf; Fe speciation; porewater; sediment
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. ICONOX: Iron Cycling in Continental Margin Sediments and the Nutrient and Oxygen Balance of the Ocean
Coverage:
Latitude: 3.094000 * Longitude: -50.508000
Date/Time Start: 2018-05-12T17:39:00 * Date/Time End: 2018-05-12T17:39:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.400 m
Event(s):
M147_89-1 * Latitude: 3.094283 * Longitude: -50.507733 * Date/Time: 2018-05-12T17:39:00 * Campaign: M147 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
171 data points

Data

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


Sample label

Date/Time

Latitude

Longitude

Elevation [m]

Depth sed [m]

TOC [%]

Al [mg/g]

K [mg/g]
10 
Fe [mg/g]
11 
Al [%]
12 
K [%]
13 
Fe tot [%]
14 
FeD [%]
15 
Fe acid-soluble [%]
16 
Fe-di-ct [%]
17 
Fe ox [%]
18 
Fe Py [%]
M147_89-MUC17_0.5cm2018-05-12T17:39:003.094-50.508-21.10.0050.630102.923.951.810.292.395.181.9980.4231.7650.2440.009
M147_89-MUC17_1.5cm2018-05-12T17:39:003.094-50.508-21.10.0150.630103.323.651.410.332.365.142.018
M147_89-MUC17_2.5cm2018-05-12T17:39:003.094-50.508-21.10.0250.620102.723.551.110.272.355.112.017
M147_89-MUC17_3.5cm2018-05-12T17:39:003.094-50.508-21.10.0350.670103.723.751.510.372.375.152.036
M147_89-MUC17_5cm2018-05-12T17:39:003.094-50.508-21.10.0500.650104.023.851.710.402.385.172.0350.4301.7920.2480.011
M147_89-MUC17_7cm2018-05-12T17:39:003.094-50.508-21.10.0700.710103.723.751.810.372.375.182.049
M147_89-MUC17_9cm2018-05-12T17:39:003.094-50.508-21.10.0900.660102.923.651.110.292.365.112.049
M147_89-MUC17_11cm2018-05-12T17:39:003.094-50.508-21.10.1100.650103.523.751.310.352.375.131.955
M147_89-MUC17_13cm2018-05-12T17:39:003.094-50.508-21.10.1300.630101.523.650.010.152.365.001.8970.4571.6210.2890.011
M147_89-MUC17_15cm2018-05-12T17:39:003.094-50.508-21.10.1500.620101.523.550.110.152.355.011.956
M147_89-MUC17_17cm2018-05-12T17:39:003.094-50.508-21.10.1700.670103.223.551.510.322.355.152.060
M147_89-MUC17_19cm2018-05-12T17:39:003.094-50.508-21.10.1900.640101.923.550.610.192.355.061.958
M147_89-MUC17_21cm2018-05-12T17:39:003.094-50.508-21.10.2100.660101.523.450.510.152.345.051.9670.4451.6800.2890.011
M147_89-MUC17_29cm2018-05-12T17:39:003.094-50.508-21.10.290105.024.052.010.502.405.201.9460.4131.6860.285
M147_89-MUC17_40cm2018-05-12T17:39:003.094-50.508-21.10.400106.924.353.310.692.435.332.0060.4091.7170.2920.011