Hall, Per (2006): Nutrients in porewater of sediment profile M42/2_397-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.385612, 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: 48.933500 * Longitude: -16.583500
Date/Time Start: 1998-08-04T14:12:00 * Date/Time End: 1998-08-04T14:12:00
Minimum DEPTH, sediment/rock: 0.0000 m * Maximum DEPTH, sediment/rock: 0.1900 m
Event(s):
M42/2_397-1 (M42/2_MC-09) * Latitude: 48.933500 * Longitude: -16.583500 * Date/Time: 1998-08-04T14:12:00 * Elevation: -4811.0 m * Location: Bengal * Campaign: M42/2 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
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) | |
| 6 | Nitrate | [NO3]- | µmol/l | Hall, Per | Nutrients, CHEMLAB autoanalyser |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
82 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] | 6 [NO3]- [µmol/l] |
|---|---|---|---|---|---|
| 0.0000 | 2.4009 | 2244.7 | 21.3 | ||
| 0.0025 | 0.000 | 0.005 | 2.2607 | 1992.3 | 37.7 |
| 0.0075 | 0.005 | 0.010 | 2.3353 | 2060.8 | 45.1 |
| 0.0125 | 0.010 | 0.015 | 2.3914 | 2080.1 | 51.6 |
| 0.0175 | 0.015 | 0.020 | 2.4362 | 2105.8 | 54.4 |
| 0.0225 | 0.020 | 0.025 | 2.4994 | 2136.7 | 54.7 |
| 0.0275 | 0.025 | 0.030 | 2.6036 | 2170.8 | 53.8 |
| 0.0350 | 0.030 | 0.040 | 2.6811 | 2225.8 | 48.4 |
| 0.0450 | 0.040 | 0.050 | 2.5370 | 2240.0 | 45.8 |
| 0.0550 | 0.050 | 0.060 | 2.2740 | 2216.2 | 43.3 |
| 0.0700 | 0.060 | 0.080 | 2.4049 | 2152.7 | 34.9 |
| 0.0900 | 0.080 | 0.100 | 2.4830 | 2082.3 | 42.7 |
| 0.1100 | 0.100 | 0.120 | 2.4762 | 2276.7 | 37.7 |
| 0.1300 | 0.120 | 0.140 | 2.4728 | 2193.4 | 34.1 |
| 0.1500 | 0.140 | 0.160 | 2.4569 | 31.9 | |
| 0.1700 | 0.160 | 0.180 | 2.4993 | 2208.4 | 31.3 |
| 0.1900 | 0.180 | 0.200 | 2.5030 | 2303.8 | 29.7 |