Hall, Per (2006): Nutrients in porewater of sediment profile 13077-025 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.385595, 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: 48.932999 * Longitude: -16.561001
Date/Time Start: 1997-03-18T20:09:00 * Date/Time End: 1997-03-18T20:09:00
Minimum DEPTH, sediment/rock: 0.0000 m * Maximum DEPTH, sediment/rock: 0.1100 m
Event(s):
13077-025 * Latitude Start: 48.932999 * Longitude Start: -16.561001 * Latitude End: 48.932999 * Longitude End: -16.561001 * Date/Time Start: 1997-03-18T20:09:00 * Date/Time End: 1997-03-18T20:09:00 * Elevation: -4825.0 m * Campaign: D226 * Basis: Discovery (1962) * Method/Device: MultiCorer Barnett pattern (12-57) (MCB57) * Comment: 12 good cores inc 4 NIOZ, lander site.
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 | Carbon, organic, dissolved | DOC | µmol/l | Hall, Per | High temperature catalytic oxidation |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
53 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 DOC [µmol/l] |
|---|---|---|---|---|---|
| 0.0000 | 2.4346 | 2125.3 | 69.9 | ||
| 0.0025 | 0.000 | 0.005 | 2.2470 | 2005.0 | 681.5 |
| 0.0075 | 0.005 | 0.010 | 2.2804 | 2011.0 | 532.9 |
| 0.0150 | 0.010 | 0.020 | 2.3337 | 2125.3 | 337.4 |
| 0.0250 | 0.020 | 0.030 | 2.4115 | 2172.7 | 183.4 |
| 0.0350 | 0.030 | 0.040 | 2.4663 | 2261.4 | 259.3 |
| 0.0450 | 0.040 | 0.050 | 2.5235 | 2256.8 | 228.3 |
| 0.0575 | 0.050 | 0.065 | 2.5516 | 2281.0 | 305.5 |
| 0.0725 | 0.065 | 0.080 | 2.7198 | 2365.7 | 198.2 |
| 0.0900 | 0.080 | 0.100 | 2.5068 | 2244.7 | 210.6 |
| 0.1100 | 0.100 | 0.120 | 2.5322 | 2266.1 | 142.8 |