Bulk total organic carbon content and its isotope composition and biomarker data of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) ...

• Main Authors: Ruben, Manuel Jannis, Mollenhauer, Gesine
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2024
• Subjects: Sample ID; DEPTH, sediment/rock; Carbon, organic, total; Carbon, organic, total, standard deviation; Fraction modern carbon; Fraction modern carbon, standard deviation; δ13C, total organic carbon; δ13C, total organic carbon, standard deviation; Terrigenous/aquatic ratio; Terrigenous/aquatic ratio, standard deviation; Carbon Preference Index; Carbon Preference Index, standard deviation; Branched and isoprenoid tetraether index; Branched and isoprenoid tetraether index, standard deviation; C31 beta beta R homohopane relative to diagenetic isomers, fractional abundance; C31 beta beta R homohopane relative to diagenetic isomers, fractional abundance, standard deviation; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, standard deviation; Hand corer; CA-Land_2022_YukonCoast; AWI Arctic Land Expedition; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation NUNATARYUK; Herschel; Herschel Island; permafrost; Yukon
• Online Access: https://dx.doi.org/10.1594/pangaea.965370; https://doi.pangaea.de/10.1594/PANGAEA.965370

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.The acquired data includes:1) Sediment data: Bulk total organic carbon content (Lamping et al., 2021) and its isotopic values for 13C (Brodie et al., 2011; Werner & Brand, 2001) and 14C (Mollenhauer et al., 2021).2) Biomarker data: Quantifying alkanes (CPI) , and fatty acids (TAR ratio) as described by Wei et al. (2020), Glycerol dialkyl glycerol tetraethers (GDGTs basis for BIT-Index) after Hopmans et al. (2016), Hopanes (fßß) following instructions ...