Ruben, Manuel Jannis; Mollenhauer, Gesine: Bulk total organic carbon content and its isotope composition and biomarker data of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.965370 (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.
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 by Meyer et al., (2019), and Sterols (Dinosterol) after Dauner et al. (2022).
References:
Brodie, Chris R; Casford, James SL; Lloyd, Jeremy M; Leng, Melanie J; Heaton, Timothy H E; Kendrick, Christopher P; Zong, Yongqiang (2011): Evidence for bias in C/N, δ13C and δ15N values of bulk organic matter, and on environmental interpretation, from a lake sedimentary sequence by pre-analysis acid treatment methods. Quaternary Science Reviews, 30(21-22), 3076-3087, https://doi.org/10.1016/j.quascirev.2011.07.003
Dauner, Ana Lúcia Lindroth; Mollenhauer, Gesine; Hefter, Jens; Bícego, Márcia Caruso; de Mahiques, Michel Michaelovitch; Martins, César Castro (2022): Late Pleistocene to Holocene variations in marine productivity and terrestrial material delivery to the western South Atlantic. Frontiers in Marine Science, 9, 924556, https://doi.org/10.3389/fmars.2022.924556
Hopmans, Ellen C; Schouten, Stefan; Sinninghe Damsté, Jaap S (2016): The effect of improved chromatography on GDGT-based palaeoproxies. Organic Geochemistry, 93, 1-6, https://doi.org/10.1016/j.orggeochem.2015.12.006
Lamping, Nele; Müller, Juliane; Hefter, Jens; Mollenhauer, Gesine; Haas, Christian; Shi, Xiaoxu; Vorrath, Maria-Elena; Lohmann, Gerrit; Hillenbrand, Claus-Dieter (2021): Evaluation of lipid biomarkers as proxies for sea ice and ocean temperatures along the Antarctic continental margin. Climate of the Past, 17(5), 2305-2326, https://doi.org/10.5194/cp-17-2305-2021
Meyer, Vera D; Hefter, Jens; Köhler, Peter; Tiedemann, Ralf; Gersonde, Rainer; Wacker, Lukas; Mollenhauer, Gesine (2019): Permafrost-carbon mobilization in Beringia caused by deglacial meltwater runoff, sea-level rise and warming. Environmental Research Letters, 14(8), 085003, https://doi.org/10.1088/1748-9326/ab2653
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
Wei, Bingbing; Jia, Guodong; Hefter, Jens; Kang, Manyu; Park, Eunmi; Wang, Shizhu; Mollenhauer, Gesine (2020): Comparison of the U₃₇ᴷ', LDI, TEX₈₆ᴴ, and RI-OH temperature proxies in sediments from the northern shelf of the South China Sea. Biogeosciences, 17(17), 4489-4508, https://doi.org/10.5194/bg-17-4489-2020
Werner, Roland A; Brand, Willi A (2001): Referencing strategies and techniques in stable isotope ratio analysis. Rapid Communications in Mass Spectrometry, 15(7), 501-519, https://doi.org/10.1002/rcm.258
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: 0.015 m * Maximum DEPTH, sediment/rock: 0.255 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):
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:
350 data points