Schirrmeister, Lutz; Siegert, Christine (2017): Pore-water analyses of permafrost deposits from Lya_1999_R18+50, Bol'shoy Lyakhovsky Island in 1999 [dataset]. Alfred Wegener Institute - Research Unit Potsdam, PANGAEA, https://doi.org/10.1594/PANGAEA.881504
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Project(s):
Permafrost Research (Periglacial Dynamics) @ AWI (AWI_PerDyn)
Coverage:
Latitude: 73.337200 * Longitude: 141.305700
Event(s):
Lya_1999_R18+50 * Latitude: 73.337200 * Longitude: 141.305700 * Location: Lyakhovsky Islands * Campaign: RU-Land_1999_Lyakhovsky (Lya_1999) * Basis: AWI Arctic Land Expedition * Method/Device: Multiple investigations (MULT) * Comment: horizontal distance from the Zimov'e River mouth in 1999: 1850 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 | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 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:
280 data points
Data
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R18+50-S-1 | 11.80 | Kuchcheguy | 7.27 | 114 | 6.00 | 0.55 | 1.86 | 13.12 | 18.26 | 17.02 | 0.00 | 10.8 | |
| R18+50-S-2 | 12.70 | Kuchcheguy | 7.21 | 104 | 4.60 | 0.50 | 1.67 | 12.82 | 24.93 | 8.33 | 0.67 | 14.0 | |
| R18+50-S-3 | 13.50 | Kuchcheguy | 6.82 | 100 | 2.52 | 0.51 | 0.75 | 9.89 | 14.28 | 3.30 | 0.24 | 11.3 | duplicate |
| R18+50-S-3 | 13.50 | Kuchcheguy | 6.85 | 68 | 4.77 | 0.64 | 1.75 | 11.67 | 25.14 | 6.16 | 0.26 | 11.4 | duplicate |
| R18+50-S-4 | 13.40 | alevrite | 7.36 | 167 | 13.49 | 0.82 | 3.91 | 11.57 | 25.16 | 28.45 | 0.45 | 16.8 | |
| R18+50-S-5 | 13.70 | cryoturbated soil, gray | 7.61 | 151 | 16.37 | 0.49 | 5.02 | 4.57 | 23.33 | 18.24 | 0.00 | 23.9 | |
| R18+50-S-6 | 13.75 | cryoturbated soil, dark brown | 6.99 | 150 | 14.78 | 0.51 | 5.87 | 4.09 | 27.29 | 20.08 | 0.00 | 16.0 | |
| R18+50-S-7 A | 14.25 | alevrite | 7.96 | 165 | 15.63 | 0.59 | 7.59 | 4.17 | 27.18 | 15.76 | 0.00 | 30.3 | duplicate |
| R18+50-S-7 B | 14.25 | alevrite | 7.81 | 144 | 13.72 | 0.55 | 6.40 | 3.67 | 22.20 | 13.31 | 0.00 | 28.4 | duplicate |
| R18+50-S-8 | 13.50 | alevrit with gravels | 6.87 | 69 | 5.10 | 0.49 | 1.45 | 4.05 | 16.16 | 1.10 | 0.00 | 10.5 | |
| R18+50-S-9 | 13.75 | cryoturbated soil | 7.13 | 100 | 8.14 | 0.34 | 3.07 | 5.22 | 12.75 | 14.61 | 0.00 | 13.1 | |
| R18+50-S-10 | 14.10 | alevrit | 7.98 | 134 | 12.01 | 0.60 | 5.71 | 5.91 | 15.56 | 15.18 | 0.00 | 32.5 | |
| R18+50-S-10 | 14.10 | alevrit | 7.41 | 85 | 6.74 | 0.53 | 3.06 | 5.06 | 13.04 | 3.60 | 0.00 | 23.9 | |
| R18+50-S-10 | 14.10 | alevrit | 7.58 | 84 | 6.95 | 0.51 | 3.08 | 4.95 | 13.00 | 3.83 | 0.00 | 23.5 | |
| R18+50-S-11 | 14.40 | cryoturbated soil | 7.44 | 105 | 7.64 | 0.55 | 4.25 | 5.98 | 17.47 | 4.00 | 0.00 | 28.7 | duplicate |
| R18+50-S-11 | 14.40 | cryoturbated soil | 7.68 | 100 | 7.71 | 0.53 | 4.13 | 5.99 | 16.64 | 3.43 | 0.00 | 25.3 | duplicate |
| R18+50-S-11 | 14.40 | cryoturbated soil | 7.29 | 361 | 28.27 | 0.84 | 12.80 | 19.39 | 102.89 | 12.56 | 0.00 | 24.1 | duplicate |
| R18+50-S-12 | 15.00 | alevrite | 7.33 | 104 | 6.83 | 0.72 | 2.93 | 7.23 | 22.73 | 4.87 | 0.00 | 18.5 | |
| R18+50-S-13 | 16.10 | alevrite | 6.76 | 77 | 5.79 | 0.79 | 2.60 | 5.24 | 9.50 | 3.28 | 0.00 | 14.9 | |
| R18+50-S-14 | 16.40 | alevrite | 7.06 | 82 | 6.26 | 0.80 | 2.22 | 5.79 | 9.64 | 6.69 | 0.00 | 20.3 | |
| R18+50-S-15 | 16.80 | alevrite | 6.85 | 60 | 4.36 | 0.81 | 1.96 | 3.71 | 8.05 | 1.41 | 0.00 | 13.9 |