Citation:

PANGAEA.920857

Name: Multielement data of sediment samples from the Kvarken Archipelago, eastern Gulf of Bothnia, impacted by metal loading from acid sulphate soils
Published: 2020-07-24
License: https://creativecommons.org/licenses/by/4.0/
Keywords: acid sulphate soils; Baltic Sea; Finland; Gulf of Bothnia; mud; multielement; trace metals

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Abstract:

This dataset includes contents of 55 elements, determined for 1-cm sediment slices of 9 short gravity-cores from the Kvarken Archipelago, eastern Gulf of Bothnia, northern Baltic Sea. Geochronology of the cores is constrained by the measurements of Cs-137 activity content. The sediments represent organic-rich brackish-water muds. The sea area receives large amounts of trace metals (e.g. Al, Cd, Co, Cu, La, Mn, Ni and Zn) from rivers draining the acid sulphate soils of western Finland. The metal contents in the cores increase during the 1960s and 1970s, and stay at the high level afterwards. The enrichment is visible more than 25 km out from the river mouths.

The sample slices were sieved through a 63 μm mesh, and 0.2 g of the passed-through fraction was digested in a four-acid mixture of hydrofluoric acid, perchloric acid, hydrochloric acid and nitric acid (USGS Methods T01 and T20). After evaporation of the acids at 160 °C, the resulting gel was dissolved to 1 M nitric acid, and analysed for element concentrations by inductively coupled plasma-mass spectrometry (ICP-MS), or inductively coupled plasma-optical emission spectrometry (ICP-OES), depending on the element. The commercial sediment reference materials QCGBMS304-6, QCMESS-4, QCNIST8704, CO153B and in-house standards were used for assessing measurement accuracy. Element concentrations for all reference materials measured with each sample batch fell well within ±10 % of the certified values. Mercury was measured separately by nitric acid leach of 0.2 g samples through thermal decomposition, amalgamation and atomic absorption spectrometry (US EPA Method 7473). Solid-phase contents of carbon and nitrogen in the samples were analyzed by thermal combustion elemental analysis. The pools of inorganic C and N are negligible in this setting, hence the total contents are considered equal to organic C and N.

Keyword(s):

acid sulphate soils; Baltic Sea; Finland; Gulf of Bothnia; mud; multielement; trace metals

Supplement to:

Virtasalo, Joonas J; Österholm, Peter; Kotilainen, Aarno T; Åström, Mats E (2020): Enrichment of trace metals from acid sulfate soils in sediments of the Kvarken Archipelago, eastern Gulf of Bothnia, Baltic Sea. Biogeosciences, 17(23), 6097-6113, https://doi.org/10.5194/bg-17-6097-2020

Related to:

Virtasalo, Joonas J; Åström, Mats E; Österholm, Peter; Kotilainen, Aarno T (2020): Grain size data of sediment samples from the Kvarken Archipelago, eastern Gulf of Bothnia, impacted by metal loading from acid sulphate soils. PANGAEA, https://doi.org/10.1594/PANGAEA.920850

Coverage:

Median Latitude: 63.110978 * Median Longitude: 21.376056 * South-bound Latitude: 63.084000 * West-bound Longitude: 21.209400 * North-bound Latitude: 63.149700 * East-bound Longitude: 21.536400

Date/Time Start: 2016-08-04T00:00:00 * Date/Time End: 2018-08-10T00:00:00

Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.415 m

Event(s):

MGGN-2016-8 * Latitude: 63.084000 * Longitude: 21.536400 * Date/Time: 2016-08-04T00:00:00 * Elevation: -6.0 m * Location: Gulf of Bothnia * Method/Device: Gravity corer (GC) * Comment: Sampled with RVGeomari

MGGN-2017-17 * Latitude: 63.113800 * Longitude: 21.393000 * Date/Time: 2017-06-30T00:00:00 * Elevation: -10.0 m * Location: Gulf of Bothnia * Method/Device: Gravity corer (GC) * Comment: Sampled with RVGeomari

MGGN-2017-18 * Latitude: 63.096300 * Longitude: 21.455600 * Date/Time: 2017-06-30T00:00:00 * Elevation: -8.0 m * Location: Gulf of Bothnia * Method/Device: Gravity corer (GC) * Comment: Sampled with RVGeomari

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Virtasalo, Joonas J
2	Sample ID	Sample ID		Virtasalo, Joonas J
3	DEPTH, sediment/rock	Depth sed	m	Virtasalo, Joonas J		Geocode
4	Silver	Ag	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
5	Bismuth	Bi	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
6	Cadmium	Cd	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
7	Cerium	Ce	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
8	Dysprosium	Dy	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
9	Erbium	Er	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
10	Europium	Eu	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
11	Gadolinium	Gd	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
12	Hafnium	Hf	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
13	Holmium	Ho	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
14	Lanthanum	La	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
15	Lutetium	Lu	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
16	Niobium	Nb	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
17	Neodymium	Nd	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
18	Praseodymium	Pr	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
19	Antimony	Sb	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
20	Samarium	Sm	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
21	Tin	Sn	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
22	Tantalum	Ta	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
23	Terbium	Tb	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
24	Thorium	Th	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
25	Thallium	Tl	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
26	Thulium	Tm	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
27	Uranium	U	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
28	Ytterbium	Yb	mg/kg	Virtasalo, Joonas J	ICP-MS after four-acid digestion
29	Aluminium	Al	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
30	Arsenic	As	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
31	Barium	Ba	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
32	Beryllium	Be	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
33	Calcium	Ca	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
34	Cobalt	Co	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
35	Chromium	Cr	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
36	Copper	Cu	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
37	Iron	Fe	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
38	Potassium	K	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
39	Lithium	Li	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
40	Magnesium	Mg	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
41	Manganese	Mn	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
42	Sodium	Na	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
43	Nickel	Ni	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
44	Phosphorus	P	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
45	Lead	Pb	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
46	Rubidium	Rb	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
47	Sulfur	S	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
48	Scandium	Sc	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
49	Strontium	Sr	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
50	Titanium	Ti	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
51	Vanadium	V	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
52	Yttrium	Y	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
53	Zinc	Zn	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
54	Zirconium	Zr	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
55	Carbon, total	TC	%	Virtasalo, Joonas J	Thermal combustion CN analyzer	% sed dry mass
56	Nitrogen, total	TN	%	Virtasalo, Joonas J	Thermal combustion CN analyzer	% sed dry mass
57	Mercury	Hg	mg/kg	Virtasalo, Joonas J	AAS after thermal decomposition
58	Molybdenum	Mo	mg/kg	Virtasalo, Joonas J	ICP-OES after four-acid digestion
59	Caesium-137	137Cs	Bq/kg	Virtasalo, Joonas J	Gamma spectroscopy
60	Age, comment	Comm		Virtasalo, Joonas J		Age group: 2 = 1986 and later, 1 = 1960-1985, 0 = Before 1960

License:

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

Size:

20218 data points

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