Citation:

PANGAEA.859217

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Project(s):

Benthic Biology and Geochemistry of a North-eastern Atlantic Abyssal Locality (BENGAL)

Funding:

Fourth Framework Programme (FP4), grant/award no. MAS3950018 : Benthic Biology and Geochemistry of a North-eastern Atlantic Abyssal Locality

Coverage:

Latitude: 48.966833 * Longitude: -16.467000

Date/Time Start: 1998-08-17T12:33:00 * Date/Time End: 1998-08-17T12:33:00

Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.190 m

Event(s):

M42/2_432-1 (M42/2_MC-32) * Latitude: 48.966833 * Longitude: -16.467000 * Date/Time: 1998-08-17T12:33:00 * Elevation: -4810.0 m * Location: Bengal * Campaign: * Basis: * 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	Carbon, organic, dissolved	DOC	µmol/l	Hall, Per	High temperature catalytic oxidation (Sugimura & Suzuki, 1988)
7	Nitrate	[NO3]-	µmol/l	Hall, Per	Nutrients, CHEMLAB autoanalyser

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

100 data points

Data

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

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]	7 [NO3]- [µmol/l]
0.000			2.401	2235.30	54.4	21.30
0.002	0.000	0.005	2.193	2081.90	671.5	31.90
0.008	0.005	0.010	2.208	2084.30	249.1	33.80
0.012	0.010	0.015	2.208	2087.20	140.4	31.90
0.018	0.015	0.020	2.209	2045.30	167.2	32.70
0.022	0.020	0.025	2.211	2068.60	111.7	32.40
0.028	0.025	0.030	2.289	2157.30	127.5	33.80
0.035	0.030	0.040	2.333	2224.80	188.0	33.10
0.045	0.040	0.050	2.354	2208.00	155.6	33.60
0.055	0.050	0.060	2.388	2234.30	138.6	35.20
0.070	0.060	0.080	2.427	2333.90	112.7	35.50
0.090	0.080	0.100	2.457	2375.60	111.5	35.50
0.110	0.100	0.120	2.480	2360.10	86.7	35.20
0.130	0.120	0.140	2.458	2342.30	65.6	34.70
0.150	0.140	0.160	2.486	2348.20	67.0	34.10
0.170	0.160	0.180	2.532	2376.00	59.6	32.40
0.190	0.180	0.200	2.543	2409.90	53.4	30.80