Pore-water analyses of permafrost deposits from Lya_1999_R18+50, Bol'shoy Lyakhovsky Island in 1999 ...

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 th...

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Bibliographic Details
Main Authors: Schirrmeister, Lutz, Siegert, Christine
Format: Dataset
Language:English
Published: PANGAEA 2017
Subjects:
Sample code/label
Height above sea level
Sediment type
pH
Conductivity, electrolytic
Calcium
Potassium
Magnesium
Sodium
Chloride
Nitrate
Sulfate
Bicarbonate ion
Comment
Multiple investigations
RU-Land_1999_Lyakhovsky
AWI Arctic Land Expedition
Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn
permafrost
Online Access:https://dx.doi.org/10.1594/pangaea.881504
https://doi.pangaea.de/10.1594/PANGAEA.881504
Description
Summary: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 ...

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