Citation:

PANGAEA.881501

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Project(s):

Permafrost Research (Periglacial Dynamics) @ AWI (AWI_PerDyn)

Coverage:

Latitude: 73.335600 * Longitude: 141.317100

Event(s):

Lya_1999_R14+40 * Latitude: 73.335600 * Longitude: 141.317100 * Location: Lyakhovsky Islands * Campaign: (Lya_1999) * Basis: AWI Arctic Land Expedition * Method/Device: Multiple investigations (MULT) * Comment: horizontal distance from the Zimov'e River mouth in 1999: 1440 m W

Comment:

In order to get information about the pore-water characteristics from the dry samples, the water-soluble elements in the sediments were determined by shaking the samples with a proportionate amount of ultrapure water for a defined period of time. To obtain the water extracts, approximately 1 g of the freeze-dried sample was shaken for approximately 90 minutes in 50 ml centrifuge tubes with ultrapure water at a soil:water ratio of 1:25 using an overhead shaker (Gerhardt Laboshake). Then the suspension was centrifuged (Heraeus Multifuge 3s) at 4000 rpm for 15 minutes. The decanted extraction was filtered through a 0.45 µm cellulose acetate filter. We measured total dissolved elemental concentrations of Al, Ba, Ca, Fe, K, Mg, Mn, Na, P, Si, and Sr and anion concentrations of F-, Cl-, SO42-, Br-, NO3-, PO43-, and HCO3-.The element concentrations were analyzed using inductively coupled plasma-optical emission spectrometry (ICP-OES, Perkin-Elmer Optima 8300DV), while the anion content was determined by ion chromatography (IC, Thermo ICS2100). Hydrogen carbonate concentrations were measured by potentiometric pH-value titration with 0.01 M HCl using an automatic titrator (Metrohm 794 Basic Titrino). In order to estimate the procedural error, extractions were carried out in duplicate for every 5th to 10th sample and 2-3 blank solutions of ultrapure water were treated in the same manner as the extractions and measured for concentrations. Water EC and pH values were measured using a WTW MultiLab 540 multi-parameter device equipped with a TetraCon 325 cell referenced to 25 °C and a pH Sentix 81 electrode.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator
1	Sample code/label	Sample label		Schirrmeister, Lutz
2	Height above sea level	Height	m a.s.l.	Schirrmeister, Lutz
3	Sediment type	Sediment		Schirrmeister, Lutz
4	pH	pH		Schirrmeister, Lutz
5	Conductivity, electrolytic	EC	µS/cm	Schirrmeister, Lutz
6	Calcium	Ca2+	mg/l	Schirrmeister, Lutz
7	Potassium	K+	mg/l	Schirrmeister, Lutz
8	Magnesium	Mg2+	mg/l	Schirrmeister, Lutz
9	Sodium	Na+	mg/l	Schirrmeister, Lutz
10	Chloride	Cl-	mg/l	Schirrmeister, Lutz
11	Nitrate	[NO3]-	mg/l	Schirrmeister, Lutz
12	Sulfate	[SO4]2-	mg/l	Schirrmeister, Lutz
13	Bicarbonate ion	[HCO3]-	mg/l	Schirrmeister, Lutz
14	Comment	Comment		Schirrmeister, Lutz

License:

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

Size:

120 data points

Data

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

1 Sample label	2 Height [m a.s.l.]	3 Sediment	4 pH	5 EC [µS/cm]	6 Ca2+ [mg/l]	7 K+ [mg/l]	8 Mg2+ [mg/l]	9 Na+ [mg/l]	10 Cl- [mg/l]	11 [NO3]- [mg/l]	12 [SO4]2- [mg/l]	13 [HCO3]- [mg/l]	14 Comment
R14+40-S-1	3.10	Olyor	5.31	33	1.13	0.21	0.80	1.80	1.13	0.54	0.00	9.3
R14+40-S-2	4.00	peat	4.43	124	4.78	0.31	2.86	2.34	8.75	1.04	0.00	2.9
R14+40-S-3	4.30	Olyor	4.79	23	0.61	0.00	0.27	0.96	3.91	0.00	0.00	3.2
R14+40-S-4	4.70	peat inclusion	5.52	442	47.22	0.31	19.65	15.88	85.75	20.40	0.19	46.5	extract yellowish
R14+40-S-5	4.80	Olyor	5.77	146	7.23	0.00	4.27	11.22	34.95	8.40	0.40	9.6
R14+40-S-6	5.00	sand	5.56	198	11.23	0.25	5.16	16.15	38.21	28.26	2.79	8.2
R14+40-S-7	5.60	Kuchcheguy	7.24	82	3.81	0.51	1.30	8.69	16.93	6.89	0.55	11.0
R14+40-S-8 A	6.60	Kuchcheguy	6.94	117	6.56	0.72	1.95	11.60	24.75	10.54	4.65	10.2	duplicate
R14+40-S-8 B	6.60	Kuchcheguy	6.91	114	6.34	0.67	1.90	11.35	24.12	10.00	4.62	9.9	duplicate