Citation:

PANGAEA.945061

Name: Porewater concentrations of ammonium, nitrite, nitrate, sulfate, hydrogen sulfide, dissolved iron and dissolved manganese at 5 sites along a water depth transect in the Gulf of Mexico (Louisiana continental shelf)
Creator: Wytze K Lenstra
Published: 2022-06-07
License: https://creativecommons.org/licenses/by/4.0/

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Published: 2022-06-07 • DOI registered: 2022-07-07

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Abstract:

Porewater samples for NH4+, NO3- , and NO2- were analyzed on board with Quattro gas-segmented continuous flow analysers using the indophenolblue method (NH+4), and the sulphanyl-amide method (NOx). Porewater sulfide was determined spectrophotometrically using phenylenediamine and ferric chloride. Porewater samples for SO4 2- were analyzed by ion-chromatography. Dissolved Fe and Mn were analyzed by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES; Spectro Arcos). Porewater concentrations were around or below the detection limit (0.5 and 0.8 μmol L−1, respectively) and are therefore not presented.

Related to:

Lenstra, Wytze K; van Helmond, Niels A G M; Żygadłowska, Olga Marzena; van Zummeren, Roosmarijn; Witbaard, Rob; Slomp, Caroline P (2022): Sediments as a Source of Iron, Manganese, Cobalt and Nickel to Continental Shelf Waters (Louisiana, Gulf of Mexico). Frontiers in Marine Science, 9, https://doi.org/10.3389/fmars.2022.811953

Coverage:

Median Latitude: 28.181060 * Median Longitude: -91.286000 * South-bound Latitude: 27.736933 * West-bound Longitude: -91.337250 * North-bound Latitude: 28.809100 * East-bound Longitude: -91.225250

Minimum DEPTH, sediment/rock: 0.0000 m * Maximum DEPTH, sediment/rock: 0.1500 m

Event(s):

64PE434_1 (Station 1) * Latitude: 28.809100 * Longitude: -91.335267 * Elevation: -16.0 m * Location: Gulf of Mexico * Campaign: * Basis: * Method/Device: Surface water sample (SWS)

64PE434_2 (Station 2) * Latitude: 28.443683 * Longitude: -91.337250 * Elevation: -53.0 m * Location: Gulf of Mexico * Campaign: * Basis: * Method/Device: Surface water sample (SWS)

64PE434_3 (Station 3) * Latitude: 28.006667 * Longitude: -91.273000 * Elevation: -130.0 m * Location: Gulf of Mexico * Campaign: * Basis: * Method/Device: Surface water sample (SWS)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Lenstra, Wytze K
2	DEPTH, sediment/rock	Depth sed	m	Lenstra, Wytze K		Geocode
3	Depth, top/min	Depth top	m	Lenstra, Wytze K
4	Depth, bottom/max	Depth bot	m	Lenstra, Wytze K
5	Ammonium	[NH4]+	µmol/l	Lenstra, Wytze K	see description in data abstract
6	Nitrite	[NO2]-	µmol/l	Lenstra, Wytze K	see description in data abstract
7	Nitrate	[NO3]-	µmol/l	Lenstra, Wytze K	see description in data abstract
8	Sulfate	[SO4]2-	mmol/l	Lenstra, Wytze K	Ion chromatography
9	Hydrogen sulfide	H2S	µmol/l	Lenstra, Wytze K
10	Iron, dissolved	Fe diss	µmol/l	Lenstra, Wytze K	Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES)
11	Manganese, dissolved	Mn diss	µmol/l	Lenstra, Wytze K	Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES)

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

839 data points

Data

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

1 Event	2 Depth sed [m]	3 Depth top [m]	4 Depth bot [m]	5 [NH4]+ [µmol/l]	6 [NO2]- [µmol/l]	7 [NO3]- [µmol/l]	8 [SO4]2- [mmol/l]	9 H2S [µmol/l]	10 Fe diss [µmol/l]	11 Mn diss [µmol/l]
64PE434_1	0.0000			4.7	2.0	2.2	30.1	0.7	3.3	0.1
64PE434_1	0.0025	0.000	0.005	61.8	6.2	15.1	29.4	10.9	95.7	213.2
64PE434_1	0.0075	0.005	0.010	74.3	2.7	7.5	29.6	0.2	120.6	187.0
64PE434_1	0.0125	0.010	0.015	107.9	1.4	2.5	29.3	0.4	323.1	164.1
64PE434_1	0.0175	0.015	0.020	134.2	1.2	0.9	28.3	5.1	282.5	114.7
64PE434_1	0.0225	0.020	0.025	138.8	1.1	0.5	29.6	1.0	155.2	96.4
64PE434_1	0.0275	0.025	0.030	144.3	1.1	0.5	28.7	0.0	197.6	98.0
64PE434_1	0.0325	0.030	0.035	148.5	0.9	0.4	29.6	0.2	157.7	87.7
64PE434_1	0.0375	0.035	0.040	159.3	0.6	2.5	29.8	0.4	190.1	85.1
64PE434_1	0.0425	0.040	0.045	163.1	0.8	0.2	29.6	0.0	142.2	75.3
64PE434_1	0.0475	0.045	0.050	175.3	2.0	1.4	28.5	0.4	128.8	73.1
64PE434_1	0.0550	0.050	0.060	180.6	0.9	0.4	28.6	2.0	115.6	71.0
64PE434_1	0.0650	0.060	0.070	183.9	0.8	0.0	28.4	3.7	84.2	64.3
64PE434_1	0.0750	0.070	0.080	181.9	0.6	0.0	31.1	1.8	33.3	57.0
64PE434_1	0.0850	0.080	0.090	186.6	0.7	0.1	28.2	0.0	56.0	55.5
64PE434_1	0.0950	0.090	0.100	192.6	0.7	0.0	28.5	0.0	38.2	56.0
64PE434_1	0.1100	0.100	0.120	214.3	1.0	0.0	28.0	0.0	29.9	46.5
64PE434_1	0.1300	0.120	0.140	242.7	0.7	0.4	27.9	2.5	18.3	39.4
64PE434_1	0.1500	0.140	0.160	263.3	0.3	0.5	26.9	0.0	5.0	36.2
64PE434_2	0.0000			0.7	0.4	3.1	31.4	0.0	1.9	0.2
64PE434_2	0.0025	0.000	0.005	7.2	0.4	0.1	31.6		1.8	16.4
64PE434_2	0.0075	0.005	0.010	14.5	0.3	0.2	31.7	1.4	1.1	63.3
64PE434_2	0.0125	0.010	0.015	20.6	0.4	0.2	30.8	0.0	0.4	89.7
64PE434_2	0.0175	0.015	0.020	27.6	0.3	0.0	33.1	0.4	1.5	134.4
64PE434_2	0.0225	0.020	0.025	34.2	0.3	0.3	31.5	0.0	1.4	151.2
64PE434_2	0.0275	0.025	0.030	39.1	0.4	0.2	31.3		8.0	140.2
64PE434_2	0.0325	0.030	0.035	44.6	0.3	0.2	30.7		28.2	125.3
64PE434_2	0.0375	0.035	0.040	49.8	0.5	0.0	31.0		63.6	111.1
64PE434_2	0.0425	0.040	0.045	52.0	0.5	0.3	30.4	0.0	64.0	90.8
64PE434_2	0.0475	0.045	0.050	55.0	0.6	0.0	32.4	0.0	80.4	83.5
64PE434_2	0.0550	0.050	0.060	59.7	0.5	0.0	30.5		101.7	71.1
64PE434_2	0.0650	0.060	0.070	64.0	0.7	0.0	31.6	0.2	86.0	64.4
64PE434_2	0.0750	0.070	0.080	68.0	0.6	0.2	29.8	0.2	77.5	63.9
64PE434_2	0.0850	0.080	0.090	71.7	0.6	0.2	30.7		69.9	68.9
64PE434_2	0.0950	0.090	0.100	72.9	0.8	0.3	30.3	0.0	64.9	61.1
64PE434_2	0.1100	0.100	0.120	87.8	0.4	0.0	30.3	0.0	50.1	54.2
64PE434_2	0.1300	0.120	0.140	115.7	0.4	0.0	29.6	0.2	61.4	46.9
64PE434_2	0.1500	0.140	0.160	138.8	0.5	0.0	30.5	0.0	46.8	43.2
64PE434_3	0.0000			0.2	0.2	10.0	31.2	0.1	0.1	0.0
64PE434_3	0.0025	0.000	0.005	0.7	1.8	14.4	31.5	0.0	0.4	0.0
64PE434_3	0.0075	0.005	0.010	3.9	0.6	1.6	30.7	0.0	0.9	10.2
64PE434_3	0.0125	0.010	0.015	8.0	0.6	1.1	31.8	0.2	0.8	35.2
64PE434_3	0.0175	0.015	0.020	12.6	0.4	0.5	30.7	0.0	0.6	57.8
64PE434_3	0.0225	0.020	0.025	13.2	0.6	1.4	31.5	0.0	0.4	41.6
64PE434_3	0.0275	0.025	0.030	15.7	0.6	0.4	30.5	0.2	0.7	50.6
64PE434_3	0.0325	0.030	0.035	17.9	0.3	0.1	31.0	0.0	0.4	51.8
64PE434_3	0.0375	0.035	0.040	18.4	0.5	0.7	32.1	0.2	0.6	41.9
64PE434_3	0.0425	0.040	0.045	18.7	0.5	0.2	31.0	0.4	0.4	36.6
64PE434_3	0.0475	0.045	0.050	19.0	0.5	0.5	29.7	0.0	0.3	29.3
64PE434_3	0.0550	0.050	0.060	19.4	0.4	0.4	30.4	0.4	1.3	31.5
64PE434_3	0.0650	0.060	0.070	19.3	0.4	0.2	31.3	0.0	2.7	24.5
64PE434_3	0.0750	0.070	0.080	19.5	0.4	0.2	30.6	0.0	8.6	23.7
64PE434_3	0.0850	0.080	0.090	19.5	0.4	0.2	29.9	0.0	9.2	20.4
64PE434_3	0.0950	0.090	0.100	20.0	0.3	0.1	30.4	0.0	8.0	18.5
64PE434_3	0.1100	0.100	0.120	19.9	0.4	0.3	30.1	0.0	12.4	13.7
64PE434_3	0.1300	0.120	0.140	21.6	0.2	0.2	30.9	0.0	19.3	14.2
64PE434_3	0.1500	0.140	0.160	22.1	0.2	0.1	30.0	0.0	20.6	13.1
64PE434_4	0.0000			0.2	0.2	16.9	29.9	0.3	1.8	0.3
64PE434_4	0.0025	0.000	0.005	0.0	0.5	23.8	29.5	0.0	0.8	0.0
64PE434_4	0.0075	0.005	0.010	0.5	2.1	15.5	30.3	0.0	1.2	0.1
64PE434_4	0.0125	0.010	0.015	1.7	1.9	4.7	29.3	0.2	2.8	0.4
64PE434_4	0.0175	0.015	0.020	2.7	0.5	2.2	30.3	0.0	1.1	4.2
64PE434_4	0.0225	0.020	0.025	7.4	0.4	1.0	29.1	0.0	1.0	15.3
64PE434_4	0.0275	0.025	0.030	10.9	0.4	0.4	29.8	0.0	0.5	43.7
64PE434_4	0.0325	0.030	0.035	19.9	0.4	0.3	29.2	1.8	0.7	87.8
64PE434_4	0.0375	0.035	0.040	16.3	0.4	0.5	30.0	0.0	1.9	100.4
64PE434_4	0.0425	0.040	0.045	24.9	0.4	0.1	29.4	0.6	0.4	124.4
64PE434_4	0.0475	0.045	0.050	27.6	0.4	0.0	30.2	0.0	0.6	143.4
64PE434_4	0.0550	0.050	0.060	31.6	0.3	0.0	29.2	0.2	6.0	148.3
64PE434_4	0.0650	0.060	0.070	37.2	0.4	0.0	30.8	0.4	5.8	151.9
64PE434_4	0.0750	0.070	0.080	42.2	0.4	0.1	29.4	0.2	4.2	164.8
64PE434_4	0.0850	0.080	0.090	45.6	0.4	0.1	31.6	0.2	30.8	152.2
64PE434_4	0.0950	0.090	0.100	48.7	0.5	0.0	29.9	0.0	22.2	157.2
64PE434_4	0.1100	0.100	0.120	51.4	0.5	0.2	30.7	0.0	31.7	159.4
64PE434_4	0.1300	0.120	0.140	61.3	0.4	0.3	30.0	0.0	47.0	132.0
64PE434_4	0.1500	0.140	0.160	66.5	0.4	0.1	30.3	0.4	31.9	134.8
64PE434_5	0.0000			0.1	0.2	30.5	30.4	0.4	0.3	0.0
64PE434_5	0.0025	0.000	0.005	0.6	0.8	34.7	30.6	0.0	0.1	0.0
64PE434_5	0.0075	0.005	0.010	0.1	0.9	32.4	29.3	0.0	0.7	0.0
64PE434_5	0.0125	0.010	0.015	0.7	0.9	33.0	30.1	0.0	0.1	0.0
64PE434_5	0.0175	0.015	0.020	0.2	1.0	26.2	30.4	0.0	0.0	0.0
64PE434_5	0.0225	0.020	0.025	0.4	1.1	22.5	31.3	0.4	0.4	0.0
64PE434_5	0.0275	0.025	0.030	0.3	1.2	17.1	30.7	0.0	0.4	0.0
64PE434_5	0.0325	0.030	0.035	0.3	1.3	13.3	30.8	0.8	0.7	0.0
64PE434_5	0.0375	0.035	0.040	0.4	1.5	10.2	29.0	0.0	0.4	0.1
64PE434_5	0.0425	0.040	0.045	0.4	2.2	6.0	29.9	0.0	0.4	0.2
64PE434_5	0.0475	0.045	0.050	0.4	2.0	4.6	30.0	0.0	0.1	0.5
64PE434_5	0.0550	0.050	0.060	0.4	1.7	2.7	32.8	0.0	0.0	0.8
64PE434_5	0.0650	0.060	0.070	0.6	1.1	1.6	29.5	0.6	0.4	1.5
64PE434_5	0.0750	0.070	0.080	1.6	0.8	0.7	30.1	0.0	0.4	7.2
64PE434_5	0.0850	0.080	0.090	3.3	0.8	0.2	29.2	0.0	0.1	16.2
64PE434_5	0.0950	0.090	0.100	4.9	0.7	0.1	29.3	0.0	0.4	22.4
64PE434_5	0.1100	0.100	0.120	7.0	0.7	0.7	28.8	0.8	3.6	26.7
64PE434_5	0.1300	0.120	0.140	10.7	0.8	0.3	29.8	0.0	10.2	31.3
64PE434_5	0.1500	0.140	0.160	14.1	0.8	0.1	28.5	0.0	17.4	29.8