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Biskaborn, Boris K; Forster, Amy; Pfalz, Gregor; Stoof-Leichsenring, Kathleen Rosmarie (2023): 210Pb and 137Cs dating data from sediment core 16-KP-04-L19B, Lake Rauchuagytgyn, expedition to Chukotka 2016, Russian Arctic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.953139

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Abstract:
These dataset contains multi proxy data from short sediment core 16-KP-04-L19B obtained from Arctic glacial lake Rauchuagytgyn (N 67.7888, E 168.7380) by gravity coring during the Chukotka 2018 expedition (Siberia). We provide original count data of diatom species from 20 samples along a ca. 10.5 cm interval in the sediment core, next to organic carbon, nitrogen, and mercury concentrations. The data sets provides, calculated from the original data, estimated accumulation rates for diatom valves (diatom accumulation rate, DAR), organic carbon (organic carbon accumulation rates, OCAR), and mercury (Hg accumulation rates, HgAR).
Keyword(s):
Diatom assemblage; Diatom Stratigraphy; Lake sediment core; Mercury concentration; organic carbon composition; Russian Arctic
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
Funding:
European Research Council (ERC), grant/award no. 772852: Glacial Legacy on the establishment of evergreen vs. summergreen boreal forests
Coverage:
Latitude: 67.820000 * Longitude: 168.700000
Date/Time Start: 2016-07-19T00:00:00 * Date/Time End: 2016-07-19T00:00:00
Minimum DEPTH, sediment/rock: 0.0125 m * Maximum DEPTH, sediment/rock: 0.1025 m
Event(s):
16-KP-04-L19_Core_B * Latitude: 67.820000 * Longitude: 168.700000 * Date/Time: 2016-07-19T00:00:00 * Elevation: 625.0 m * Lake water depth: 31 m * Recovery: 0.23 m * Location: Tschukotka, Sibiria, Russia * Campaign: RU-Land_2016_Keperveem (Keperveem_2016) * Basis: AWI Arctic Land Expedition * Method/Device: Gravity corer, UWITEC (GCUWI) * Comment: Camp 4
Comment:
210Pb and 137Cs activities analyzed by direct gamma assay in the Liverpool University Environmental Radioactivity Laboratory, using Ortec HPGe GWL series well-type coaxial low background intrinsic germanium detectors - gamma emissions at 46.5 keV (210Pb) and at 662 keV (137Cs).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmBiskaborn, Boris KGeocode – Composite Depth mid-point
2Sample thicknessSamp thickcmBiskaborn, Boris K
3Laboratory code/labelLab labelBiskaborn, Boris K
4LaboratoryLabBiskaborn, Boris KLab-Location
5Age, dated materialDated materialBiskaborn, Boris K
6Lead-210210PbBq/kgBiskaborn, Boris KGamma spectrometer, HPGe detectors (Canberra/Ortec)
7Lead-210, error210Pb e±Biskaborn, Boris K
8Lead-210, unsupported210Pb unsupBq/kgBiskaborn, Boris KGamma spectrometer, HPGe detectors (Canberra/Ortec)
9Lead-210, unsupported, error210Pb unsup e±Biskaborn, Boris K
10Lead-210, supported210Pb supBq/kgBiskaborn, Boris KGamma spectrometer, HPGe detectors (Canberra/Ortec)
11Lead-210, supported, error210Pb sup e±Biskaborn, Boris K
12Caesium-137137CsBq/kgBiskaborn, Boris KGamma spectrometer, HPGe detectors (Canberra/Ortec)
13Caesium-137, error137Cs e±Biskaborn, Boris K
14Age, maximum/oldAge maxa AD/CEBiskaborn, Boris K
15Age, minimum/youngAge mina AD/CEBiskaborn, Boris K
16AgeAgea AD/CEBiskaborn, Boris K
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
285 data points

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