Publication Date:
2024-03-14
Description:
Total organic carbon (TOC), biogenic silica (BSi) concentrations, total nitrogen (TN) concentrations and carbon nitrogen ratios (C/N) from short sediment core, which was taken in March 2019 from ice-covered lake are presented.
The sediment core analyzes of TOC, TN and C/N were measured on 5 to 10 mg of freeze-dried sediment using elemental analyzer COSTECH ECS4010. The biogenic silica concentrations were determined using weak alkaline extraction by Conley and Schelske (2001) using 30mg of freeze-dried sediment reacting with 40ml of 0.1M Na2CO3 for 5 hours. The DSi concentration in the extracted aliqote was measured using molybdate blue method (Strickland and Parsons, 1972) using Smartchem 200, AMS System descrete analyzer.
Keywords:
Calculated; Carbon, organic, total; Carbon, organic, total, standard error; Carbon/Nitrogen ratio; Density, dry bulk; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Element analyser CHN, Costech; GC; Gravity corer; Lille_Bror_core_1; Nitrogen, total; Nitrogen, total, standard error; Opal, biogenic silica; Opal, biogenic silica, error; Porosity, fractional; Smartchem analyser (spectrophotometric detection); Sweden
Type:
Dataset
Format:
text/tab-separated-values, 146 data points
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