Lin, Tsai-Wen; Grotheer, Hendrik; Ruben, Manuel Jannis; Mollenhauer, Gesine (2025): Radiocarbon data of bulk organic matter in permafrost from the Lena Delta, Arctic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.984750, In: Lin, Tsai-Wen; Nehrke, Gernot; Mollenhauer, Gesine (2025): Bulk organic matter data of Lena Delta permafrost, marine surface sediment, and sediment cores from the Laptev Sea, Arctic Ocean [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.984732
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Published: 2025-09-09 • DOI registered: 2025-10-08
Abstract:
This datasheet includes radiocarbon measurement results of bulk organic matter from permafrost collected from the Lena Delta. Sediments were freeze-dried, ground, and weighed into silver boats, with sample sizes determined by TOC content to target 1 mg of organic carbon. Samples were acidified with three drops of 6 M HCl at 60 °C three times with one hour reaction time between treatments, then oven-dried overnight at 60 °C. Afterwards, acidified samples together with silver boats were folded into tin boats and converted into graphite targets using an elemental analyzer (Elementar vario Isotope) coupled to an automated graphitization system (Ionplus AG, AGE-3). Radiocarbon measurements were conducted using the MIni CArbon Dating System (MICADAS) accelerator mass spectrometer at Alfred Wegener Institute (AWI) (Mollenhauer et al., 2021).
References:
Mollenhauer, Gesine; Grotheer, Hendrik; Gentz, Torben; Bonk, Elizabeth; Hefter, Jens (2021): Standard operation procedures and performance of the MICADAS radiocarbon laboratory at Alfred Wegener Institute (AWI), Germany. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 496, 45-51, https://doi.org/10.1016/j.nimb.2021.03.016
Funding:
Helmholtz Association of German Research Centres (HGF), grant/award no. PIE-0018: German-Italian partnership project between AWI and CNR-ISP on Chronologies for Polar Paleoclimate Archives (PAIGE)
Coverage:
Median Latitude: 72.521354 * Median Longitude: 127.434048 * South-bound Latitude: 72.376970 * West-bound Longitude: 126.480560 * North-bound Latitude: 72.615800 * East-bound Longitude: 128.286350
Date/Time Start: 2009-08-17T00:00:00 * Date/Time End: 2019-04-05T00:00:00
Minimum DEPTH, sediment/rock: 0.015 m * Maximum DEPTH, sediment/rock: 49.360 m
Event(s):
CAC19-Y1 (CAC19-Y) * Latitude: 72.537430 * Longitude: 128.286350 * Date/Time: 2019-04-05T00:00:00 * Elevation: 6.0 m * Location: Lena Delta, Siberia * Campaign: RU-Land_2019_Lena (Lena 2019) * Basis: AWI Arctic Land Expedition * Method/Device: Soil profile (SOIL) * Comment: Drilled with a Makita hand drill, HSS bimetal hole saw attachment with 5.4 cm diameter. Always 3 samples next to each other, except of the topmost one.
L09-08-1 * Latitude: 72.615800 * Longitude: 127.262700 * Date/Time: 2009-08-17T00:00:00 * Campaign: RU-Land_2009_Lena (Lena2009) * Basis: AWI Arctic Land Expedition * Method/Device: Hatchet and hammer
L10-04-3 * Latitude: 72.537800 * Longitude: 126.860800 * Date/Time: 2010-07-31T00:00:00 * Campaign: RU-Land_2010_Lena (Lena2010) * Basis: AWI Arctic Land Expedition * Method/Device: Hatchet and hammer
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Lin, Tsai-Wen | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Lin, Tsai-Wen | Geocode | |
| 3 | Fraction modern carbon | F14C | Lin, Tsai-Wen | Mini Carbon Dating System (MICADAS) | ||
| 4 | Fraction modern carbon, error | F14C e | ± | Lin, Tsai-Wen | Mini Carbon Dating System (MICADAS) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
40 data points
Data
| 1 Event | 2 Depth sed [m] | 3 F14C | 4 F14C e [±] |
|---|---|---|---|
| L09-08-1 | 0.015 | 0.7908 | 0.0028 |
| L09-08-1 | 3.400 | 0.6713 | 0.0028 |
| L10-04-3 | 0.275 | 0.7006 | 0.0026 |
| L10-04-3 | 1.250 | 0.7158 | 0.0025 |
| L10-04-3 | 4.700 | 0.6068 | 0.0022 |
| SOB18-07 | 0.370 | 0.8630 | 0.0027 |
| SOB18-07 | 0.855 | 0.3871 | 0.0014 |
| SOB18-07 | 1.290 | 0.0054 | 0.0003 |
| SOB18-07 | 1.695 | 0.1054 | 0.0006 |
| SAM18-01 | 7.260 | 0.4526 | 0.0018 |
| SAM18-01 | 12.110 | 0.3519 | 0.0015 |
| SAM18-01 | 22.550 | 0.3350 | 0.0013 |
| SAM18-01 | 30.860 | 0.1346 | 0.0008 |
| SAM18-01 | 49.360 | 0.0032 | 0.0001 |
| CAC19-Y1 | 13.350 | 0.0116 | 0.0004 |
| CAC19-Y1 | 14.750 | 0.0099 | 0.0004 |
| CAC19-Y1 | 14.950 | 0.0066 | 0.0002 |
| CAC19-Y1 | 15.350 | 0.0081 | 0.0004 |
| CAC19-Y1 | 15.750 | 0.0068 | 0.0003 |
| CAC19-Y1 | 16.350 | 0.0048 | 0.0002 |