Lin, Tsai-Wen; Grotheer, Hendrik; Mollenhauer, Gesine (2025): Radiocarbon data of bulk organic matter in marine sediment core PS51/154-11 from the Laptev Sea, Arctic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.984733, 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 core PS51/154-11. 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).
Related to:
Lin, Tsai-Wen; Nehrke, Gernot; Grotheer, Hendrik; Koch, Boris P; Meyer, Hanno; Ruben, Manuel Jannis; Stein, Ruediger; Strauss, Jens; Tesi, Tommaso; Mollenhauer, Gesine (2025): Holocene Terrestrial Permafrost Contributes More Highly Reactive Organic Matter to the Laptev Sea Shelf Than Pleistocene Permafrost. Journal of Geophysical Research: Biogeosciences, 130(10), e2025JG008872, https://doi.org/10.1029/2025JG008872
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:
Latitude: 77.276000 * Longitude: 120.609833
Date/Time Start: 1998-08-16T19:20:00 * Date/Time End: 1998-08-16T19:25:00
Minimum DEPTH, sediment/rock: 0.105 m * Maximum DEPTH, sediment/rock: 6.505 m
Event(s):
PS51/154-11 * Latitude: 77.276000 * Longitude: 120.609833 * Date/Time Start: 1998-08-16T19:20:00 * Date/Time End: 1998-08-16T19:25:00 * Elevation: -270.0 m * Penetration: 7.8 m * Recovery: 6.74 m * Location: Laptev Sea * Campaign: ARK-XIV/1b (PS51 Transdrift-V) * Basis: Polarstern * Method/Device: Kasten corer (KAL) * Comment: 7 core sections: 0.03-0.9, 0.9-1.91, 1.91-2.91, 2.91-3.91, 3.91-4.91, 4.91-5.91, 5.91-6.74 m
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 | AGE | Age | ka BP | Lin, Tsai-Wen | Geocode | |
| 4 | Fraction modern carbon | F14C | Lin, Tsai-Wen | Mini Carbon Dating System (MICADAS) | ||
| 5 | 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:
46 data points
Data
| 1 Event | 2 Depth sed [m] | 3 Age [ka BP] | 4 F14C | 5 F14C e [±] |
|---|---|---|---|---|
| PS51/154-11 | 0.105 | 2.965 | 0.3900 | 0.0014 |
| PS51/154-11 | 0.195 | 3.170 | 0.2180 | 0.0010 |
| PS51/154-11 | 0.315 | 4.249 | 0.0989 | 0.0008 |
| PS51/154-11 | 0.405 | 5.947 | 0.0890 | 0.0006 |
| PS51/154-11 | 0.505 | 10.073 | 0.0885 | 0.0008 |
| PS51/154-11 | 0.685 | 10.327 | 0.0818 | 0.0007 |
| PS51/154-11 | 0.805 | 10.368 | 0.0784 | 0.0007 |
| PS51/154-11 | 1.035 | 10.499 | 0.0589 | 0.0006 |
| PS51/154-11 | 1.235 | 10.868 | 0.0705 | 0.0007 |
| PS51/154-11 | 1.425 | 11.183 | 0.0640 | 0.0005 |
| PS51/154-11 | 2.740 | 11.941 | 0.0620 | 0.0005 |
| PS51/154-11 | 3.120 | 12.571 | 0.0800 | 0.0005 |
| PS51/154-11 | 3.240 | 12.964 | 0.0490 | 0.0004 |
| PS51/154-11 | 3.325 | 13.243 | 0.0546 | 0.0004 |
| PS51/154-11 | 3.420 | 13.488 | 0.0580 | 0.0004 |
| PS51/154-11 | 3.630 | 13.598 | 0.0430 | 0.0004 |
| PS51/154-11 | 4.305 | 13.975 | 0.0360 | 0.0004 |
| PS51/154-11 | 5.005 | 14.882 | 0.0310 | 0.0004 |
| PS51/154-11 | 5.305 | 15.249 | 0.0201 | 0.0007 |
| PS51/154-11 | 5.605 | 15.584 | 0.0226 | 0.0007 |
| PS51/154-11 | 5.805 | 15.949 | 0.0510 | 0.0004 |
| PS51/154-11 | 6.405 | 17.316 | 0.0320 | 0.0010 |
| PS51/154-11 | 6.505 | 17.544 | 0.0230 | 0.0010 |