Zahajská, Petra; Olid, Carolina; Conley, Daniel J (2021): Total organic carbon, biogenic silica concentrations, total nitrogen concentrations and carbon nitrogen ratios in short sediment core from Lake 850, Sweden [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.930354, In: Zahajská, Petra; Olid, Carolina; Shemesh, Aldo; Conley, Daniel J (2021): Discharges, radon fluxes, dissolved silicon, biogenic silica, stable silicon isotopes of water and sediment samples and XRF data from Lake 850, Northern Sweden [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.929941
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Abstract:
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.
Further details:
Conley, Daniel J; Schelske, Claire (2002): Biogenic Silica. In: Smol J.P., Birks H.J.B., Last W.M., Bradley R.S., Alverson K. (eds) Tracking Environmental Change Using Lake Sediments. Developments in Paleoenvironmental Research, vol 3. Springer, Dordrecht, https://doi.org/10.1007/0-306-47668-1_14
Strickland, J D H; Parsons, T R (1972): A practical handbook of seawater analysis. Fisheries Research Board of Canada, 167 pp, hdl:10013/epic.46454.d001
Coverage:
Latitude: 68.298120 * Longitude: 19.121020
Date/Time Start: 2019-03-22T00:00:00 * Date/Time End: 2019-03-22T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.135 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Depth, top/min | Depth top | m | Zahajská, Petra | ||
| 2 | Depth, bottom/max | Depth bot | m | Zahajská, Petra | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Zahajská, Petra | Geocode | |
| 4 | Porosity, fractional | Poros frac | Zahajská, Petra | |||
| 5 | Density, dry bulk | DBD | g/cm3 | Zahajská, Petra | ||
| 6 | Opal, biogenic silica | bSiO2 | % | Zahajská, Petra | Smartchem analyser (spectrophotometric detection) | dry wt% |
| 7 | Opal, biogenic silica, error | bSiO2 e | ± | Zahajská, Petra | Smartchem analyser (spectrophotometric detection) | SD |
| 8 | Carbon, organic, total | TOC | % | Zahajská, Petra | Element analyser CHN, Costech | dry wt% |
| 9 | Carbon, organic, total, standard error | TOC std e | ± | Zahajská, Petra | Element analyser CHN, Costech | SD |
| 10 | Nitrogen, total | TN | % | Zahajská, Petra | Element analyser CHN, Costech | dry wt% |
| 11 | Nitrogen, total, standard error | TN std e | ± | Zahajská, Petra | Element analyser CHN, Costech | SD |
| 12 | Carbon/Nitrogen ratio | C/N | Zahajská, Petra | Calculated |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
146 data points