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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
1 DEPTH, sediment/rockDepth sedmBiskaborn, Boris KGeocode – Composite Depth mid-point
2 Sample thicknessSamp thickcmBiskaborn, Boris K
3 Laboratory code/labelLab labelBiskaborn, Boris K
4 LaboratoryLabBiskaborn, Boris KLab-Location
5 Age, dated materialDated materialBiskaborn, Boris K
6 Lead-210210PbBq/kgBiskaborn, Boris KGamma spectrometry, HPGe detectors (Canberra/Ortec)
7 Lead-210, error210Pb e±Biskaborn, Boris K
8 Lead-210, unsupported210Pb unsupBq/kgBiskaborn, Boris KGamma spectrometry, HPGe detectors (Canberra/Ortec)
9 Lead-210, unsupported, error210Pb unsup e±Biskaborn, Boris K
10 Lead-210, supported210Pb supBq/kgBiskaborn, Boris KGamma spectrometry, HPGe detectors (Canberra/Ortec)
11 Lead-210, supported, error210Pb sup e±Biskaborn, Boris K
12 Caesium-137137CsBq/kgBiskaborn, Boris KGamma spectrometry, HPGe detectors (Canberra/Ortec)
13 Caesium-137, error137Cs e±Biskaborn, Boris K
14 Age, maximum/oldAge maxa AD/CEBiskaborn, Boris K
15 Age, minimum/youngAge mina AD/CEBiskaborn, Boris K
16 AgeAgea AD/CEBiskaborn, Boris K
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
285 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Depth sed [m]		2 
Samp thick [cm]		3 
Lab label		4 
Lab		5 
Dated material		6 
210Pb [Bq/kg]		7 
210Pb e [±]		8 
210Pb unsup [Bq/kg]		9 
210Pb unsup e [±]		10 
210Pb sup [Bq/kg]		11 
210Pb sup e [±]		12 
137Cs [Bq/kg]		13 
137Cs e [±]		14 
Age max [a AD/CE]		15 
Age min [a AD/CE]		16 
Age [a AD/CE]
0.01250.516-KP-04-L19B-2006Liverpoolbulk sediment28514222.514.162.72.647.32.32003.82008.12006.0
0.01750.516-KP-04-L19B-2000Liverpoolbulk sediment22210159.010.462.82.854.21.81997.42003.12000.5
0.02250.516-KP-04-L19B-1990Liverpoolbulk sediment24113176.613.663.82.860.02.61987.41994.31990.4
0.02750.516-KP-04-L19B-1976Liverpoolbulk sediment24812183.112.464.42.870.12.61972.51982.81975.8
0.03250.516-KP-04-L19B-1965Liverpoolbulk sediment1391173.810.865.12.479.52.41961.21974.01964.5
0.03750.516-KP-04-L19B-1957Liverpoolbulk sediment106739.77.166.32.252.11.41949.01968.01956.5
0.04250.516-KP-04-L19B-1948Liverpoolbulk sediment104940.19.163.51.923.81.61935.91961.01947.6
0.04750.516-KP-04-L19B-1938Liverpoolbulk sediment113752.37.160.81.915.61.21917.31954.81937.9
0.05250.516-KP-04-L19B-1930Liverpoolbulk sediment83725.37.457.71.89.40.91903.31949.81929.5
0.05750.516-KP-04-L19B-1922Liverpoolbulk sediment70711.76.958.21.82.10.81893.01945.31922.2
0.06250.516-KP-04-L19B-1916Liverpoolbulk sediment83623.46.759.11.92.20.91883.01941.11915.6
0.06750.516-KP-04-L19B-1910Liverpoolbulk sediment6888.77.959.41.82.01.11874.41937.21909.5
0.07250.516-KP-04-L19B-1904Liverpoolbulk sediment6866.35.961.31.91.20.71866.11933.11903.8
0.07750.516-KP-04-L19B-1898Liverpoolbulk sediment6683.77.962.31.70.00.01858.81929.41898.3
0.08250.516-KP-04-L19B-1893Liverpoolbulk sediment626-0.26.262.41.60.80.91851.11925.81893.0
0.08750.516-KP-04-L19B-1888Liverpoolbulk sediment584-1.94.360.01.60.20.71844.11922.21887.7
0.09250.516-KP-04-L19B-1883Liverpoolbulk sediment70711.57.558.81.71.50.81837.31918.51882.5
0.09750.516-KP-04-L19B-1877Liverpoolbulk sediment567-4.06.859.51.90.00.01830.51914.51877.2
0.10250.516-KP-04-L19B-1872Liverpoolbulk sediment6464.66.359.71.80.00.01823.91910.71872.0