Citation:

PANGAEA.977804

Name: Labile and total particulate element digests from 16° and 17° S shelf transects during METEOR cruise M135
Published: 2025-09-08
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Labile particulate; Marine particles; Oxygen minimum zone; Trace metal

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Published: 2025-09-08 • DOI registered: 2025-10-07

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Abstract:

Labile and total particulate trace metal concentrations were determined on particles collected from the water column of shelf sections at 16° and 17° S shelf transects on METEOR cruise M135. Samples were collected from the trace metal clean sampling system. Polyethersulfone membrane filters (Sartorius, 0.2 µm) and plastic holders (Swinnex, Nalgene) were pre-cleaned in 1 M HCl followed by de-ionized water, then mounted directly onto the OTE samplers in the trace metal clean laboratory on deck. About 4 L (exact volume recorded) of seawater was passed over the filters. Filters were then rinsed with a few drops of de-ionized water (<2 mL) and stored frozen at -20°C until analysis. Labile and total particulate digestions were conducted in series on the same filters. Filters were leached and digested in perfluoroalkoxy vials (Savillex). Labile particulate metals were determined following a 2-hour weak acid leach (25% by volume acetic acid, Optima grade, Fisher Scientific) with a mild reducing agent (0.02 M hydroxylamine hydrochloride, Sigma TM grade) and a short heating step (10 minutes at 90–95 °C). Total particulate metals were determined following a 15-hour reflux digest at 150°C using a mixture of hydrofluoric acid and nitric acid (50% and 10% by volume, respectively, Optima grade, Fisher Scientific). Metal concentrations were then determined via high resolution inductively coupled plasma-mass spectrometry with calibration via standard additions prepared in a sample-matched matrix.

Keyword(s):

Labile particulate; Marine particles; Oxygen minimum zone; Trace metal

Related to:

Krahmann, Gerd; Arévalo-Martínez, Damian L; Dale, Andy W; Dengler, Marcus; Engel, Anja; Glock, Nicolaas; Grasse, Patricia; Hahn, Johannes; Hauss, Helena; Hopwood, Mark James; Kiko, Rainer; Loginova, Alexandra; Löscher, Carolin Regina; Maßmig, Marie; Roy, A S; Salvatteci, Renato; Sommer, Stefan; Tanhua, Toste; Mehrtens, Hela (2021): Climate-Biogeochemistry Interactions in the Tropical Ocean: Data collection and legacy. Frontiers in Marine Science, https://doi.org/10.3389/fmars.2021.723304

Project(s):

Climate - Biogeochemistry Interactions in the Tropical Ocean (SFB754)

Funding:

German Research Foundation (DFG), grant/award no. 27542298 : Climate - Biogeochemistry Interactions in the Tropical Ocean

Coverage:

Median Latitude: -16.737273 * Median Longitude: -77.885909 * South-bound Latitude: -17.420000 * West-bound Longitude: -86.000000 * North-bound Latitude: -16.000000 * East-bound Longitude: -71.770000

Date/Time Start: 2017-03-20T21:08:00 * Date/Time End: 2017-03-29T00:01:00

Minimum DEPTH, water: 7 m * Maximum DEPTH, water: 2127 m

Event(s):

M135_254-1 * Latitude Start: -17.420670 * Longitude Start: -71.769000 * Latitude End: -17.420830 * Longitude End: -71.768830 * Date/Time Start: 2017-03-20T21:01:00 * Date/Time End: 2017-03-20T21:16:00 * Elevation Start: -190.0 m * Elevation End: -191.7 m * Campaign: (SFB754/POSTRE-II) * Basis: * Method/Device: (CTD-UC)

M135_259-2 * Latitude Start: -16.999670 * Longitude Start: -72.952670 * Latitude End: -16.999330 * Longitude End: -72.953830 * Date/Time Start: 2017-03-21T16:30:00 * Date/Time End: 2017-03-21T17:36:00 * Elevation Start: -1730.0 m * Elevation End: -1733.6 m * Campaign: (SFB754/POSTRE-II) * Basis: * Method/Device: (CTD-UC)

M135_261-1 * Latitude Start: -17.000000 * Longitude Start: -74.000000 * Latitude End: -17.000670 * Longitude End: -74.001330 * Date/Time Start: 2017-03-22T01:42:00 * Date/Time End: 2017-03-22T02:22:00 * Elevation Start: -889.0 m * Elevation End: -1139.2 m * Campaign: (SFB754/POSTRE-II) * Basis: * Method/Device: (CTD-UC)

Parameter(s):

#	Name	Short Name	Unit	Comment
1	Event label	Event
2	Station label	Station
3	Profile ID	Profile ID
4	DEPTH, water	Depth water	m	Geocode
5	Bottle number	Bottle
6	Sample code/label	Sample label		Bedford
7	DATE/TIME	Date/Time		Geocode
8	LATITUDE	Latitude		Geocode
9	LONGITUDE	Longitude		Geocode
10	Salinity	Sal
11	Temperature, water	Temp	°C
12	Volume	Vol	l	Seawater Volume Filtered / L
13	Strontium, particulate	Sr part	pmol/l	Labile Sr [pMol]
14	Standard deviation	Std dev	±	Labile Sr Std_dev [pMol]
15	Quality flag	QF		Labile Sr QC_Flag
16	Strontium, particulate	Sr part	pmol/l	Total Sr [pMol]
17	Standard deviation	Std dev	±	Total Sr Std_dev [pMol]
18	Quality flag	QF		Total Sr QC_Flag
19	Molybdenum, particulate	Mo part	pmol/l	Labile Mo [pMol]
20	Standard deviation	Std dev	±	Labile Mo Std_dev [pMol]
21	Quality flag	QF		Labile Mo QC_Flag
22	Molybdenum, particulate	Mo part	pmol/l	Total Mo [pMol]
23	Standard deviation	Std dev	±	Total Mo Std_dev [pMol]
24	Quality flag	QF		Total Mo QC_Flag
25	Silver, particulate	Ag part	pmol/l	Labile Ag [pMol]
26	Standard deviation	Std dev	±	Labile Ag Std_dev [pMol]
27	Quality flag	QF		Labile Ag QC_Flag
28	Silver, particulate	Ag part	pmol/l	Total Ag [pMol]
29	Standard deviation	Std dev	±	Total Ag Std_dev [pMol]
30	Quality flag	QF		Total Ag QC_Flag
31	Cadmium, particulate	Cd part	pmol/l	Labile Cd [pMol]
32	Standard deviation	Std dev	±	Labile Cd Std_dev [pMol]
33	Quality flag	QF		Labile Cd QC_Flag
34	Cadmium, particulate	Cd part	pmol/l	Total Cd [pMol]
35	Standard deviation	Std dev	±	Total Cd Std_dev [pMol]
36	Quality flag	QF		Total Cd QC_Flag
37	Barium, particulate	Ba part	pmol/l	Labile Ba [pMol]
38	Standard deviation	Std dev	±	Labile Ba Std_dev [pMol]
39	Quality flag	QF		Labile Ba QC_Flag
40	Barium, particulate	Ba part	pmol/l	Total Ba [pMol]
41	Standard deviation	Std dev	±	Total Ba Std_dev [pMol]
42	Quality flag	QF		Total Ba QC_Flag
43	Tungsten, particulate	W part	pmol/l	Labile W [pMol]
44	Standard deviation	Std dev	±	Labile W Std_dev [pMol]
45	Quality flag	QF		Labile W QC_Flag
46	Tungsten, particulate	W part	pmol/l	Total W [pMol]
47	Standard deviation	Std dev	±	Total W Std_dev [pMol]
48	Quality flag	QF		Total W QC_Flag
49	Lead, particulate	Pb part	pmol/l	Labile Pb [pMol]
50	Standard deviation	Std dev	±	Labile Pb Std_dev [pMol]
51	Quality flag	QF		Labile Pb QC_Flag
52	Lead, particulate	Pb part	pmol/l	Total Pb [pMol]
53	Quality flag	QF		Total Pb QC_Flag
54	Thorium, particulate	Th part	pmol/l	Labile Th [pMol]
55	Standard deviation	Std dev	±	Labile Th Std_dev [pMol]
56	Quality flag	QF		Labile Th QC_Flag
57	Thorium, particulate	Th part	pmol/l	Total Th [pMol]
58	Standard deviation	Std dev	±	Total Th Std_dev [pMol]
59	Quality flag	QF		Total Th QC_Flag
60	Uranium, particulate	U part	pmol/l	Labile U [pMol]
61	Standard deviation	Std dev	±	Labile U Std_dev [pMol]
62	Quality flag	QF		Labile U QC_Flag
63	Uranium, particulate	U part	pmol/l	Total U [pMol]
64	Standard deviation	Std dev	±	Total U Std_dev [pMol]
65	Quality flag	QF		Total U QC_Flag
66	Aluminium, particulate	Al part	nmol/l	Labile Al [nMol]
67	Standard deviation	Std dev	±	Labile Al [nMol]
68	Quality flag	QF		Labile Al [nMol]
69	Aluminium, particulate	Al part	nmol/l	Total Al [nMol]
70	Standard deviation	Std dev	±	Total Al [nMol]
71	Quality flag	QF		Total Al [nMol]
72	Phosphorus, particulate	PP	nmol/l	Labile P [nMol]
73	Standard deviation	Std dev	±	Labile P [nMol]
74	Quality flag	QF		Labile P [nMol]
75	Phosphorus, particulate	PP	nmol/l	Total P [nMol]
76	Standard deviation	Std dev	±	Total P [nMol]
77	Quality flag	QF		Total P [nMol]
78	Titanium, particulate	Ti part	nmol/l	Labile Ti [nMol]
79	Standard deviation	Std dev	±	Labile Ti [nMol]
80	Quality flag	QF		Labile Ti [nMol]
81	Titanium, particulate	Ti part	nmol/l	Total Ti [nMol]
82	Standard deviation	Std dev	±	Total Ti [nMol]
83	Quality flag	QF		Total Ti [nMol]
84	Vanadium, particulate	V part	pmol/l	Labile V [pMol]
85	Standard deviation	Std dev	±	Labile V Std_dev [pMol]
86	Quality flag	QF		Labile V QC_Flag
87	Vanadium, particulate	V part	pmol/l	Total V [pMol]
88	Standard deviation	Std dev	±	Total V Std_dev [pMol]
89	Quality flag	QF		Total V QC_Flag
90	Chromium, particulate	Cr part	pmol/l	Labile Cr [pMol]
91	Standard deviation	Std dev	±	Labile Cr Std_dev [pMol]
92	Quality flag	QF		Labile Cr QC_Flag
93	Chromium, particulate	Cr part	pmol/l	Total Cr [pMol]
94	Standard deviation	Std dev	±	Total Cr Std_dev [pMol]
95	Quality flag	QF		Total Cr QC_Flag
96	Manganese, particulate	Mn part	nmol/l	Labile Mn [nMol]
97	Standard deviation	Std dev	±	Labile Mn [nMol]
98	Quality flag	QF		Labile Mn [nMol]
99	Manganese, particulate	Mn part	nmol/l	Total Mn [nMol]
100	Quality flag	QF		Total Mn [nMol]
101	Iron, particulate	Fe part	nmol/l	Labile Fe [nMol]
102	Standard deviation	Std dev	±	Labile Fe [nMol]
103	Quality flag	QF		Labile Fe [nMol]
104	Iron, particulate	Fe part	nmol/l	Total Fe [nMol]
105	Standard deviation	Std dev	±	Total Fe [nMol]
106	Quality flag	QF		Total Fe [nMol]
107	Cobalt, particulate	Co part	pmol/l	Labile Co [pMol]
108	Standard deviation	Std dev	±	Labile Co Std_dev [pMol]
109	Quality flag	QF		Labile Co QC_Flag
110	Cobalt, particulate	Co part	pmol/l	Total Co [pMol]
111	Standard deviation	Std dev	±	Total Co Std_dev [pMol]
112	Quality flag	QF		Total Co QC_Flag
113	Nickel, particulate	Ni part	pmol/l	Labile Ni [pMol]
114	Standard deviation	Std dev	±	Labile Ni Std_dev [pMol]
115	Quality flag	QF		Labile Ni QC_Flag
116	Nickel, particulate	Ni part	pmol/l	Total Ni [pMol]
117	Standard deviation	Std dev	±	Total Ni Std_dev [pMol]
118	Quality flag	QF		Total Ni QC_Flag
119	Copper, particulate	Cu part	pmol/l	Labile Cu [pMol]
120	Standard deviation	Std dev	±	Labile Cu Std_dev [pMol]
121	Quality flag	QF		Labile Cu QC_Flag
122	Copper, particulate	Cu part	pmol/l	Total Cu [pMol]
123	Quality flag	QF		Total Cu QC_Flag
124	Zinc, particulate	Zn part	pmol/l	Labile Zn [pMol]
125	Standard deviation	Std dev	±	Labile Zn Std_dev [pMol]
126	Quality flag	QF		Labile Zn QC_Flag
127	Zinc, particulate	Zn part	pmol/l	Total Zn [pMol]
128	Standard deviation	Std dev	±	Total Zn Std_dev [pMol]
129	Quality flag	QF		Total Zn QC_Flag

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

13159 data points

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