Lin, Tsai-Wen; Grotheer, Hendrik; Mollenhauer, Gesine (2025): Radiocarbon data of bulk organic matter in marine surface sediments from the Laptev Sea, Arctic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.984755, 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 marine surface sediments from the Laptev Sea. 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: 75.613729 * Median Longitude: 127.993264 * South-bound Latitude: 71.690000 * West-bound Longitude: 113.996667 * North-bound Latitude: 79.226667 * East-bound Longitude: 137.551667
Date/Time Start: 1993-08-11T00:00:00 * Date/Time End: 1995-08-17T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.005 m
Event(s):
IK93Z2-8 * Latitude: 73.666667 * Longitude: 113.996667 * Date/Time: 1993-08-11T00:00:00 * Elevation: -9.0 m * Location: Laptev Sea * Campaign: Transdrift-I * Basis: Ivan Kireyev * Method/Device: Box corer (Reineck) (BCR)
IK93Z4-4 * Latitude: 72.033333 * Longitude: 130.126667 * Date/Time: 1993-08-24T00:00:00 * Elevation: -14.0 m * Location: Laptev Sea * Campaign: Transdrift-I * Basis: Ivan Kireyev * Method/Device: Box corer (Reineck) (BCR)
IK93Z5-3 * Latitude: 71.690000 * Longitude: 137.006667 * Date/Time: 1993-08-29T00:00:00 * Elevation: -11.0 m * Location: Laptev Sea * Campaign: Transdrift-I * Basis: Ivan Kireyev * Method/Device: Box corer (Reineck) (BCR)
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 | Depth, top/min | Depth top | m | Lin, Tsai-Wen | ||
| 4 | Depth, bottom/max | Depth bot | m | Lin, Tsai-Wen | ||
| 5 | Fraction modern carbon | F14C | Lin, Tsai-Wen | Mini Carbon Dating System (MICADAS) | ||
| 6 | 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:
100 data points