Biskaborn, Boris K; Forster, Amy; Pfalz, Gregor (2023): Mercury from sediment core EN18218, Lake Rauchuagytgyn, expedition to Chukotka 2018, Russian Arctic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.953130
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Abstract:
These dataset contains multi proxy data from sediment core EN18218 obtained from Arctic glacial lake Rauchuagytgyn (67.7922°N, 168.7312°E) by piston coring during the Chukotka 2018 expedition (Siberia). We provide original count data of diatom species from 53 samples along a ca. 5.5 m interval in the sediment core, next to nitrogen and mercury concentrations. The data are complementary to the sedimentological and radiocarbon data published in an earlier data set by Vyse et al. 2021. The data sets provides, calculated from the original data, estimated accumulation rates based on a revised age model explained in the manuscript for diatom valves (diatom accumulation rate, DAR), organic carbon (organic carbon accumulation rates, OCAR), and mercury (Hg accumulation rates, HgAR).
Keyword(s):
Related to:
Biskaborn, Boris K; Forster, Amy; Pfalz, Gregor; Pestryakova, Luidmila A; Stoof-Leichsenring, Kathleen Rosmarie; Strauss, Jens; Kröger, Tim; Herzschuh, Ulrike (2023): Diatom responses and geochemical feedbacks to environmental changes at Lake Rauchuagytgyn (Far East Russian Arctic). Biogeosciences, 20(9), 1691-1712, https://doi.org/10.5194/bg-20-1691-2023
Vyse, Stuart Andrew; Herzschuh, Ulrike; Pfalz, Gregor; Diekmann, Bernhard; Nowaczyk, Norbert R; Pestryakova, Luidmila A; Biskaborn, Boris K (2021): Sedimentological and biogeochemical dataset for Arctic glacial lake Rauchuagytgyn, Chukotka, Russia. PANGAEA, https://doi.org/10.1594/PANGAEA.929719
Funding:
European Research Council (ERC), grant/award no. 772852: Glacial Legacy on the establishment of evergreen vs. summergreen boreal forests
Coverage:
Latitude: 67.789380 * Longitude: 168.733520
Minimum DEPTH, sediment/rock: 0.115 m * Maximum DEPTH, sediment/rock: 6.205 m
Event(s):
EN18218 * Latitude: 67.789380 * Longitude: 168.733520 * Lake water depth: 29.5 m * Penetration: 6.53 m * Campaign: RU-Land_2018_Chukotka (Chukotka 2018) * Basis: AWI Arctic Land Expedition * Method/Device: Piston corer (PC)
Comment:
We determined the THg in solid material by thermal decomposition, amalgamation and atomic absorption spectrophotometry using a Direct Mercury Analyzer (DMA-80 evo; MLS-MWS GmbH).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Biskaborn, Boris K | Geocode | |
| 2 | Mercury | Hg | µg/kg | Biskaborn, Boris K | Direct Mercury Analyzer, DMA-80 evo |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
31 data points