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Jongejans, Loeka Laura; Liebner, Susanne; Knoblauch, Christian; Mangelsdorf, Kai; Strauss, Jens (2022): Biogeochemical parameters of thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia, version 2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.941155

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Abstract:
This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E).
The dataset presents biogeochemical and biomarker parameters of sediment cores YU-L7 and YU-L15. Biogeochemical analyses include total carbon (TC) content, total organic carbon (TOC) content, total nitrogen (TN) content. Biomarker parameters include the n-alkane concentration, average chain length (ACL), carbon preference index (CPI), brGDGT concentration, archaeol concentration and the isoGDGT-0 concentration.
The n-alkanes were measured in the aliphatic fraction by gas chromatography-mass spectromety using a Trace GC Ultra coupled to a DSQ MS.
The branched and isoprenoid glycerol dialkyl glycerol tetraethers, as well as the dialkyl glycerol diether lipid (archaeol) were measured in the NSO fraction using a Shimadzu LC-10AD high-performance liquid chromatograph coupled to a Finnigan TSQ 7000 mass spectrometer via an atmospheric pressure chemical ionization interface.
The pH soil is the sediment pH which was assessed by adding 6.12 mL of 0.01 M CaCl~2~ to ~2.5 g dried sediment and measuring with a Multilab 540 (WTW) at 20°C.
Keyword(s):
Arctic; Biomarkers; Central Yakutia; greenhouse gas production; talik; thawed permafrost; thermokarst lake; Yedoma deposits
Supplement to:
Jongejans, Loeka Laura; Liebner, Susanne; Knoblauch, Christian; Mangelsdorf, Kai; Ulrich, Mathias; Grosse, Guido; Tanski, George; Fedorov, Alexander N; Konstantinov, Pavel Ya; Windirsch, Torben; Wiedmann, Julia; Strauss, Jens (2021): Greenhouse gas production and lipid biomarker distribution in Yedoma and Alas thermokarst lake sediments in Eastern Siberia. Global Change Biology, 27(12), 2822-2839, https://doi.org/10.1111/gcb.15566
Related to:
Jongejans, Loeka Laura; Liebner, Susanne; Knoblauch, Christian; Mangelsdorf, Kai; Strauss, Jens (2021): Branched glyerol diakyl glyerol tetraether (brGDGT) concentration in thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia. PANGAEA, https://doi.org/10.1594/PANGAEA.928135
Project(s):
Carbon in Permafrost / Kohlenstoff im Permafrost (KoPF)
Cluster of Excellence: Climate, Climatic Change, and Society (CLICCS)
Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool (PETA-CARB)
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0764A: Verbundprojekt: WTZ Russland - KoPf; Kohlenstoffumsatz und Treibhausgasfreisetzung aus tauendem Permafrost Nordostsibiriens unter sich ändernden Umwelt- und Klimabedingungen
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0764B: Verbundprojekt: WTZ Russland - KoPf; Kohlenstoffumsatz und Treibhausgasfreisetzung aus tauendem Permafrost Nordostsibiriens unter sich ändernden Umwelt- und Klimabedingungen
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0764F: Verbundprojekt: WTZ Russland - KoPf; Kohlenstoffumsatz und Treibhausgasfreisetzung aus tauendem Permafrost Nordostsibiriens unter sich ändernden Umwelt- und Klimabedingungen
German Research Foundation (DFG), grant/award no. 232311661: Short and long-term thermokarst dynamics due to climate changes and human impacts in Central Yakutia, Siberia
German Research Foundation (DFG), grant/award no. 390683824: EXC 2037: Climate, Climatic Change, and Society (CLICCS)
Seventh Framework Programme (FP7), grant/award no. 338335: Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool
Coverage:
Median Latitude: 61.762415 * Median Longitude: 130.469540 * South-bound Latitude: 61.760860 * West-bound Longitude: 130.464420 * North-bound Latitude: 61.763970 * East-bound Longitude: 130.474660
Date/Time Start: 2015-03-23T00:00:00 * Date/Time End: 2015-03-23T00:00:00
Minimum DEPTH, sediment/rock: 1.695 m * Maximum DEPTH, sediment/rock: 17.685 m
Event(s):
YUK15-YU-L7 (Alas lake)  * Latitude: 61.763970 * Longitude: 130.464420 * Date/Time: 2015-03-23T00:00:00 * Recovery: 15.05 * Campaign: RU-Land_2015_CentralYakutia_Yuke (Central_Yakutia_Yukechi_2015) * Basis: AWI Arctic Land Expedition * Method/Device: Truck mounted rotary drill (RCDT) * Comment: From 4.95 m to 20 m (length: 15.05 m)
YUK15-YU-L15 (Yedoma lake)  * Latitude: 61.760860 * Longitude: 130.474660 * Date/Time: 2015-03-23T00:00:00 * Recovery: 17.16 m * Campaign: RU-Land_2015_CentralYakutia_Yuke (Central_Yakutia_Yukechi_2015) * Basis: AWI Arctic Land Expedition * Method/Device: Truck mounted rotary drill (RCDT) * Comment: From 4.30 m to 21.46 m (length: 17.16 m)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventJongejans, Loeka Laura
2 CoreCoreJongejans, Loeka LauraAlas lake sediment core YU-L7 or Yedoma lake sediment core YU-L15
3 Sample IDSample IDJongejans, Loeka LauraGFZ ID
4 Depth, top/minDepth topmJongejans, Loeka Lauratop of sampling interval from sediment surface
5 Depth, bottom/maxDepth botmJongejans, Loeka Laurabottom of sampling interval from sediment surface
6 DEPTH, sediment/rockDepth sedmJongejans, Loeka LauraGeocode
7 Carbon, totalTC%Jongejans, Loeka LauraCarbon and nitrogen and sulfur (CNS) element analyzer, Elementar, Vario MAXwt%
8 Carbon, organic, totalTOC%Jongejans, Loeka LauraElement analyser (calculated by TC-TIC)wt%
9 Nitrogen, totalTN%Jongejans, Loeka LauraCarbon and nitrogen and sulfur (CNS) element analyzer, Elementar, Vario MAXwt%
10 n-Alkane, total per unit sediment massn-Alkane tot/sedµg/gJongejans, Loeka LauraGas chromatograph-mass spectrometer (GC-MS)includes the n-alkane chains C16-C37
11 n-Alkane, average chain lengthACL n-AlkaneJongejans, Loeka LauraCalculated
12 Carbon Preference Index, n-AlkanesCPI n-AlkanesJongejans, Loeka LauraCalculated
13 Sum branched glycerol dialkyl glycerol tetraether, per unit sediment massbrGDGT/sedµg/gJongejans, Loeka LauraLiquid chromatography-mass spectrometry (LC-MS)
14 Archaeol per unit sediment massAR/sedµg/gJongejans, Loeka LauraLiquid chromatography-mass spectrometry (LC-MS)
15 Isoprenoid acyclic glycerol dialkyl glycerol tetraether per unit sediment massiso GDGT-0/sedµg/gJongejans, Loeka LauraLiquid chromatography-mass spectrometry (LC-MS)
16 pH, soilpH soilJongejans, Loeka LauraWTW MultiLab 540prior to incubation experiments
17 pH, porewaterpH pwJongejans, Loeka LauraWTW MultiLab 540after incubation experiments
Change history:
2022-02-15T16:52:20 – This is a new version of a dataset originally published under doi:10.1594/PANGAEA.928132. Version 2 contains corrected values of the sum of brGDGTs. The individual brGDGT concentrations were correctly published in doi:10.1594/PANGAEA.928135.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
294 data points

Data

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

1 
Event		2 
Core		3 
Sample ID		4 
Depth top [m]		5 
Depth bot [m]		6 
Depth sed [m]		7 
TC [%]		8 
TOC [%]		9 
TN [%]		10 
n-Alkane tot/sed [µg/g]		11 
ACL n-Alkane		12 
CPI n-Alkanes		13 
brGDGT/sed [µg/g]		14 
AR/sed [µg/g]		15 
iso GDGT-0/sed [µg/g]		16 
pH soil		17 
pH pw
YUK15-YU-L7 YU-L7G0180432.892.912.9001.6800.9940.12411.15629.61610.3710.0360870.0373340.0086337.858.18
YUK15-YU-L7YU-L7G0180443.593.643.6151.6321.0150.13220.08729.46110.0000.0417800.0166460.0091628.138.03
YUK15-YU-L7YU-L7G0180455.155.215.1801.0980.5360.0673.32029.3347.3840.0079900.0000000.0000007.768.03
YUK15-YU-L7YU-L7G01804610.4610.5010.4800.9520.4120.0578.44129.3257.5230.0059410.0044500.0021917.798.07
YUK15-YU-L7YU-L7G01804711.2311.2711.2500.5620.2810.0343.06029.2048.8820.0015770.0042080.0016168.047.64
YUK15-YU-L7YU-L7G01804813.2913.3213.3052.1191.5580.1619.33129.2267.1170.0553250.0386780.0158297.887.79
YUK15-YU-L7YU-L7G01804914.4514.4714.4601.0800.6490.0704.99229.0067.3390.0321640.0096220.0041877.757.99
YUK15-YU-L7YU-L7G01805015.1515.1715.1601.8731.4320.13417.51729.9019.9950.0671730.0358100.0155237.787.87
YUK15-YU-L7YU-L7G01805116.5016.5316.5151.2460.8950.0968.03329.2497.5730.0454500.0127400.0090237.807.46
YUK15-YU-L7YU-L7G01805217.6717.7017.6851.4950.7700.0924.83929.3968.1590.0193290.0050240.0033227.898.00
YUK15-YU-L15 YU-L15G0180531.681.711.6951.2170.6710.0512.31729.0589.1330.0570480.0017390.0011927.778.15
YUK15-YU-L15YU-L15G0180543.493.573.5301.9101.4000.1588.83929.2116.8760.0225030.0260590.0060587.918.05
YUK15-YU-L15YU-L15G0180557.707.857.7750.6610.4080.0373.25129.0069.1880.0054110.0031740.0010197.667.67
YUK15-YU-L15YU-L15G0180569.639.689.6550.4100.2210.0232.18229.66110.7100.0017910.0024270.0004747.918.11
YUK15-YU-L15YU-L15G01805710.7310.7810.7550.7070.3380.0337.07528.9428.0350.0067460.0031340.0012067.998.11
YUK15-YU-L15YU-L15G01805811.5911.6311.6100.5690.2460.0275.98128.84010.0370.0051490.0024010.000827
YUK15-YU-L15YU-L15G01805913.1313.1713.1500.4100.2090.0235.13729.0198.0050.0000000.0000000.000000
YUK15-YU-L15YU-L15G01806014.8514.9014.8751.3220.8910.0916.84928.8936.7840.0287150.0061060.0028757.998.04
YUK15-YU-L15YU-L15G01806115.9015.9715.9351.1830.6840.0665.72729.2866.2530.0150940.0032350.0014608.027.60
YUK15-YU-L15YU-L15G01806217.1017.1617.1301.3180.6340.0685.53929.3698.4130.0063880.0012720.000640