Biskaborn, Boris K; Nazarova, Larisa B; Kröger, Tim; Pestryakova, Luidmila A; Syrykh, Luidmila S; Pfalz, Gregor; Herzschuh, Ulrike; Diekmann, Bernhard (2022): Age determination of sediment core PG2208 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.942072, In: Biskaborn, BK et al. (2022): Multiproxy dataset from Lake Bolshoe Toko, Siberia (PG2208) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.942083
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Abstract:
To gain a composite core record for core PG2208 (Figure 1) we used XRF data, i.e., Sr, to correlate overlapping parts of retrieved sections resulting in 367 cm in total. For dating we scanned the sediment core for macro fossils and retrieved bulk sediment samples at depths without any reliable macro remains. A prior attempt to date samples at the Poznan radiocarbon laboratory resulted in a large deviation between humic acid fraction (soluble in NaOH) and the humin fraction (residual, i.e., alkali-insoluble fraction). Therefore, we kept only the Poznan date of the single macro fossil (terrestrial wood remain) that was present and analyzed with standard (reliable) dating routines. For creating a reliable model, we dated another set of bulk sediment samples at MICADAS radiocarbon laboratory at AWI using an acid treatment method outlined in Vyse et al. (2020). To estimate a reservoir (old carbon) effect we dated an undisturbed surface sample PG2119 that was 1.6 km SW of PG2208.
Project(s):
Paleo Modelling (PalMod)
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 01LP1510D: PalMod-3.2 Paläoklimadaten: Zusammenstellung und Synthese, Teilprojekt 4 Synthese polarer Proxydaten aus unterschiedlichen Klimaarchiven
Coverage:
Latitude: 56.056150 * Longitude: 130.867800
Date/Time Start: 2013-04-02T00:00:00 * Date/Time End: 2013-04-02T00:00:00
Minimum DEPTH, sediment/rock: 0.2025 m * Maximum DEPTH, sediment/rock: 3.6550 m
Event(s):
PG2208 * Latitude: 56.056150 * Longitude: 130.867800 * Date/Time: 2013-04-02T00:00:00 * Elevation: 901.0 m * Lake water depth: 68.3 m * Location: Lake Bolshoe Toko, Yakutia, Russia * Campaign: RU-Land_2013_Yakutia (Yakutia2013) * Basis: AWI Arctic Land Expedition * Method/Device: Composite Core (COMPCORE) * Comment: Ice thickness: 80 cm
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Biskaborn, Boris K | Geocode – composite depth | |
| 2 | Sample thickness | Samp thick | cm | Biskaborn, Boris K | ||
| 3 | Laboratory code/label | Lab label | Biskaborn, Boris K | |||
| 4 | Laboratory | Lab | Biskaborn, Boris K | |||
| 5 | Age, dated material | Dated material | Biskaborn, Boris K | |||
| 6 | Sample mass | Samp m | µg | Biskaborn, Boris K | Carbon | |
| 7 | Age, dated | Age dated | ka | Biskaborn, Boris K | Age, 14C AMS | |
| 8 | Age, dated standard error | Age std e | ± | Biskaborn, Boris K | ||
| 9 | Pretreatment | Pretreat | Biskaborn, Boris K | |||
| 10 | Reservoir effect/correction | Res effect | a | Biskaborn, Boris K | ||
| 11 | Reservoir effect/correction, error | Res effect e | ± | Biskaborn, Boris K |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
223 data points