Hall, Per (2006): Nutrients in porewater of sediment profile DI236_18-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.385606, In: Pfannkuche, Olaf; Rabouille, Christophe; Bassinot, Franck C; Galeron, Joelle; Rice, Anthony L; Bett, Brian J; Vangriesheim, Annick; Hall, Per; Brey, Thomas; Christiansen, Bernd; Springer, Barbara; Ragueneau, Olivier; Gooday, Andrew J; Wolff, George A; Grandel, Sibylle; Vanreusel, Ann; Lampitt, Richard Stephen; Duineveld, Gerard C A; Reyss, Jean-Louis; Megalovasilis, Pavlos; Dell'Anno, Antonio; Varnavas, Soterios; Grehan, Anthony J; Patching, John W; Roberts, Dai; Lamont, Peter; Danovaro, Roberto; Kiriakoulakis, Kostas; Turnewitsch, Robert; Witbaard, Rob; Cosson-Sarradin, Nathalie; Priede, Imants G; Popova, E E (2016): Compilation of scientific results of the EU project BENGAL [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.859217
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Project(s):
Funding:
Fourth Framework Programme (FP4), grant/award no. MAS3950018: Benthic Biology and Geochemistry of a North-eastern Atlantic Abyssal Locality
Coverage:
Latitude: 48.938999 * Longitude: -16.563000
Date/Time Start: 1998-09-02T00:10:00 * Date/Time End: 1998-09-13T09:30:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.170 m
Event(s):
DI236_18-1 * Latitude Start: 48.938999 * Longitude Start: -16.563000 * Latitude End: 48.938999 * Longitude End: -16.563000 * Date/Time Start: 1998-09-02T00:10:00 * Date/Time End: 1998-09-13T09:30:00 * Elevation: -4805.0 m * Campaign: D236 * Basis: Discovery (1962) * Method/Device: Göteborg lander (GBGL) * Comment: Very slow descent.
Comment:
Total carbonate (Ct) concentrations were determined on-board ship during Discovery 222 (leg A) nd 226 cruises, using colourmetric methods (Johnsson et al., 1987) with a precision of 0.2% RSD (n=10) using a sample loop of 4ml. During Discovery 231, 236 and Meteor 42/2 cruises a newly developed system (based on infrared detection of (CO2) were used for determination of total carbonate (Goyet and Snover, 1993; OSullivan and Millero, 1998). The precision of this method was also 0.2% RSD (n=10) using a sample loop of 4ml. Samples were filtrated through disposable sterile cellulose acetate filters (0.45µm) and stored refrigerated in polyethylene vials (rinsed in MQ-water) until analysis on-board.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Depth, top/min | Depth top | m | Hall, Per | ||
| 3 | Depth, bottom/max | Depth bot | m | Hall, Per | ||
| 4 | Alkalinity, total | AT | mmol(eq)/l | Hall, Per | High-precision potentiometric titration (Haraldsson et al., 1997) | |
| 5 | Carbonate ion | [CO3]2- | µmol/l | Hall, Per | Infrared detection of CO2 (Goyet & Snover, 1993) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
61 data points
Data
| 1 Depth sed [m] | 2 Depth top [m] | 3 Depth bot [m] | 4 AT [mmol(eq)/l] | 5 [CO3]2- [µmol/l] |
|---|---|---|---|---|
| 0.000 | 2.406 | 2256.80 | ||
| 0.002 | 0.000 | 0.005 | 1.895 | 1757.30 |
| 0.008 | 0.005 | 0.010 | 1.870 | 1743.50 |
| 0.012 | 0.010 | 0.015 | 1.918 | 1805.30 |
| 0.018 | 0.015 | 0.020 | 1.964 | 1844.60 |
| 0.022 | 0.020 | 0.025 | 1.960 | 1836.60 |
| 0.028 | 0.025 | 0.030 | 2.029 | 1900.50 |
| 0.035 | 0.030 | 0.040 | 2.128 | 1949.90 |
| 0.045 | 0.040 | 0.050 | 2.198 | 2069.80 |
| 0.055 | 0.050 | 0.060 | 2.226 | 2068.60 |
| 0.070 | 0.060 | 0.080 | 2.271 | 2174.40 |
| 0.090 | 0.080 | 0.100 | 2.309 | 2176.80 |
| 0.110 | 0.100 | 0.120 | 2.294 | 2141.30 |
| 0.130 | 0.120 | 0.140 | 2.316 | 2175.00 |
| 0.150 | 0.140 | 0.160 | 2.357 | 2196.40 |
| 0.170 | 0.160 | 0.180 | 2.360 |