PANGAEA_966264 Intact polar lipid fatty acids carbon isotopic composition of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) 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) 2024-06-01 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.966264 Investigator Manuel Jannis Ruben m.j.ruben@outlook.com Earth Science Sample ID Fatty acid methyl ester, compound DEPTH, sediment/rock Depth, sediment/rock, standard deviation Fraction modern carbon, compound specific Fraction modern carbon, compound specific, standard deviation Fatty acid methyl ester, compound specific, δ13C Fatty acid methyl ester, compound specific, δ13C, standard deviation geoscientificInformation CA-Land_2022_YukonCoast CA-Land_2022_YukonCoast_MR_7 Hand corer YC22_MR_7 AWI Arctic Land Expedition 2022-07-07 2022-07-07 Complete 69.57320278 69.57320278 -138.9437944 -138.9437944 0.02 m (DEPTH, sediment/rock) 0.225 m (DEPTH, sediment/rock) NUNATARYUK NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 119 data points text/tab-separated-values 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

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). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.966264"!

https://doi.org/10.1038/s41561-023-01198-z Fossil organic carbon utilization in marine Arctic fjord sediments by subsurface micro-organisms https://doi.org/10.1080/01490450303894 Characterization of specific membrane fatty acids as chemotaxonomic markers for sulfate-reducing bacteria involved in anaerobic oxidation of methane https://www.nunataryuk.org NUNATARYUK PANGAEA_965379 DIF 9.4 2024-06-01 2026-04-30