Glückler, Ramesh; Yamashita, Youhei: BPCA-derived pyrogenic carbon, microscopic charcoal, and TOC in a sediment core from Lake EN21437 (Yakutia, Siberia) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.982980 (dataset in review)
Abstract:
Records of benzene polycarboxylic acids (BPCAs), microscopic charcoal, and organic carbon of sediment core EN21437-1 from Lake EN21437 in central Yakutia. This data was used for the reconstruction of fire dynamics (biomass burning, fire intensity) over the past c. 7600 years. BPCAs were prepared from freeze-dried, homogenized lake sediment samples by nitric acid oxidation and measured in a high-performance liquid chromatograph. They are reported here as the concentration of the complete BPCAs (µM), as relative data, and as concentration of pyrogenic carbon (mgC) per gram of dry sediment, based on the sum of B5CA and B6CA. Microscopic charcoal particles (<150 µm) were counted on pollen slides together with marker spores to establish charcoal particle concentrations reported here. Total organic carbon (TOC) was measured in dried and homogenized bulk sediment samples using a soliTOC cube analyzer. The sediment core was obtained during fieldwork in August 2021, jointly organized by the Alfred Wegener Institute and the North-Eastern Federal University of Yakutsk. More information about the data can be found in the corresponding research paper (Glückler et al., in preparation). A comprehensive description of fieldwork in 2021 is available in the corresponding expedition report (Morgenstern et al., 2023).
Keyword(s):
Further details:
Glückler, Ramesh; Herzschuh, Ulrike (2025): Radiocarbon ages of the sediment core EN21437-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974680
Morgenstern, Anne; Heim, Birgit; Pestryakova, Luidmila A; Bolshiyanov, Dimitry Yu; Grigoriev, Mikhail N; Ayunov, Dmitry; Dill, Antonia; Jünger, Julia (2023): Russian-German Cooperation: Expeditions to Siberia in 2021. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 772, 120 pp, https://doi.org/10.57738/BzPM_0772_2023
Project(s):
Coverage:
Latitude: 62.343300 * Longitude: 130.374670
Date/Time Start: 2021-08-25T00:00:00 * Date/Time End: 2021-08-25T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.395 m
Event(s):
EN21437-1 * Latitude: 62.343300 * Longitude: 130.374670 * Date/Time: 2021-08-25T00:00:00 * Location: Megino-Kangalassky District * Campaign: RU-Land_2021_Yakutia * Basis: AWI Arctic Land Expedition * Method/Device: Sediment corer (SEDCO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Depth, top/min | Depth top | m | Glückler, Ramesh | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Glückler, Ramesh | Geocode | |
| 3 | Depth, bottom/max | Depth bot | m | Glückler, Ramesh | ||
| 4 | Calendar age, minimum/young | Cal age min | ka BP | Glückler, Ramesh | Age, 14C calibrated, Bayesian model, rbacon | Calibrated years before present |
| 5 | AGE | Age | ka BP | Glückler, Ramesh | Geocode – Calibrated years before present | |
| 6 | Calendar age, maximum/old | Cal age max | ka BP | Glückler, Ramesh | Age, 14C calibrated, Bayesian model, rbacon | Calibrated years before present |
| 7 | Charcoal concentration | Charcoal | #/cm3 | Glückler, Ramesh | Counting <150 µm | Microscopic charcoal concentration per cm3, counted on pollen slides |
| 8 | Carbon, organic, total | TOC | % | Glückler, Ramesh | Element analyzer, vario Cube SoliTOC | TOC weight percent |
| 9 | Benzenetricarboxylic acid | B3CA | µmol/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of B3CA; dry bulk sediment |
| 10 | Benzenetetracarboxylic acid | B4CA | µmol/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of B4CA; dry bulk sediment |
| 11 | Benzenepentacarboxylic acid | B5CA | µmol/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of B5CA; dry bulk sediment |
| 12 | Benzenehexacarboxylic acid | B6CA | µmol/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of B6CA; dry bulk sediment |
| 13 | Benzene polycarboxylic acids | BPCA | µmol/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of all BPCAs (sum); dry bulk sediment |
| 14 | Benzenetricarboxylic acid | B3CA | % | Glückler, Ramesh | Nitric acid oxidation | Share of B3CA relative to BPCA sum; dry bulk sediment |
| 15 | Benzenetetracarboxylic acid | B4CA | % | Glückler, Ramesh | Nitric acid oxidation | Share of B4CA relative to BPCA sum; dry bulk sediment |
| 16 | Benzenepentacarboxylic acid | B5CA | % | Glückler, Ramesh | Nitric acid oxidation | Share of B5CA relative to BPCA sum; dry bulk sediment |
| 17 | Benzenehexacarboxylic acid | B6CA | % | Glückler, Ramesh | Nitric acid oxidation | Share of B6CA relative to BPCA sum; dry bulk sediment |
| 18 | Benzenetricarboxylic acid, carbon per unit sediment dry mass | B3CA C/dm | mg/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of B3CA; dry bulk sediment |
| 19 | Benzenetetracarboxylic acid, carbon per unit sediment dry mass | B4CA C/dm | mg/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of B4CA; dry bulk sediment |
| 20 | Benzenepentacarboxylic acid, carbon per unit sediment dry mass | B5CA C/dm | mg/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of B5CA; dry bulk sediment |
| 21 | Benzenehexacarboxylic acid, carbon per unit sediment dry mass | B6CA C/dm | mg/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of B6CA; dry bulk sediment |
| 22 | Benzene polycarboxylic acid, carbon per unit sediment dry mass | BPCA C/dm | mg/g | Glückler, Ramesh | Nitric acid oxidation | Concentration of all BPCAs (sum); dry bulk sediment |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
587 data points