Ruben, Manuel Jannis; Mollenhauer, Gesine: Intact polar lipid fatty acids carbon isotopic composition of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.966264 (dataset in review), In: Ruben, MJ; Mollenhauer, G: Biogeochemical data of sediment cores of Herschel island (Yukon Coast 2022) [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.965379 (dataset in review)
Abstract:
In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_7 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor.
Intact polar lipid fatty acids were extracted from the sediments, purified, and 14C analysis was performed as described in Ruben et al. (2023). The 13C isotopy was determined with GC-IRMS (Elvert et al., 2003).
References:
Elvert, Marcus; Boetius, Antje; Knittel, Katrin; Jørgensen, Bo Barker (2003): Characterization of specific membrane fatty acids as chemotaxonomic markers for sulfate-reducing bacteria involved in anaerobic oxidation of methane. Geomicrobiology Journal, 20(4), 403-419, https://doi.org/10.1080/01490450303894
Ruben, Manuel Jannis; Hefter, Jens; Schubotz, Florence; Geibert, Walter; Butzin, Martin; Gentz, Torben; Grotheer, Hendrik; Forwick, Matthias; Szczuciński, Witold; Mollenhauer, Gesine (2023): Fossil organic carbon utilization in marine Arctic fjord sediments by subsurface micro-organisms. Nature Geoscience, 16(7), 625-630, https://doi.org/10.1038/s41561-023-01198-z
Project(s):
Funding:
Horizon 2020 (H2020), grant/award no. 773421: NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation
Coverage:
Latitude: 69.573203 * Longitude: -138.943794
Date/Time Start: 2022-07-07T00:00:00 * Date/Time End: 2022-07-07T00:00:00
Minimum DEPTH, sediment/rock: 0.02 m * Maximum DEPTH, sediment/rock: 0.23 m
Event(s):
CA-Land_2022_YukonCoast_MR_7 (YC22_MR_7) * Latitude: 69.573203 * Longitude: -138.943794 * Date/Time: 2022-07-07T00:00:00 * Elevation: -6.0 m * Location: Herschel Island, Yukon Territory, Canada * Campaign: CA-Land_2022_YukonCoast (Yukon Coast 2022) * Basis: AWI Arctic Land Expedition * Method/Device: Hand corer (HCOR)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Ruben, Manuel Jannis | |||
| 2 | Fatty acid methyl ester, compound | FAME | Ruben, Manuel Jannis | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Ruben, Manuel Jannis | Geocode | |
| 4 | Depth, sediment/rock, standard deviation | Depth sed std dev | ± | Ruben, Manuel Jannis | ||
| 5 | Fraction modern carbon, compound specific | F14C compound | Ruben, Manuel Jannis | |||
| 6 | Fraction modern carbon, compound specific, standard deviation | F14C compound std dev | ± | Ruben, Manuel Jannis | ||
| 7 | Fatty acid methyl ester, compound specific, δ13C | FAME δ13C | ‰ PDB | Ruben, Manuel Jannis | mean | |
| 8 | Fatty acid methyl ester, compound specific, δ13C, standard deviation | FAME δ13C std dev | ± | Ruben, Manuel Jannis |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
119 data points