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

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 colum...

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Bibliographic Details
Main Authors: Ruben, Manuel Jannis, Mollenhauer, Gesine
Format: Dataset
Language:English
Published: PANGAEA 2024
Subjects:
4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol
standard deviation
AWI Arctic Land Expedition
Branched and isoprenoid tetraether index
C31 beta beta R homohopane relative to diagenetic isomers
fractional abundance
CA-Land_2022_YukonCoast
CA-Land_2022_YukonCoast_MR_7
Carbon
organic
total
Carbon Preference Index
DEPTH
sediment/rock
Fraction modern carbon
Hand corer
HCOR
Herschel Island
Yukon Territory
Canada
NUNATARYUK
Permafrost thaw and the changing Arctic coast
science for socioeconomic adaptation
Sample ID
Terrigenous/aquatic ratio
YC22_MR_7
Yukon Coast 2022
δ13C
total organic carbon
Arctic
Yukon
Herschel
permafrost
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.965370
https://doi.org/10.1594/PANGAEA.965370
Description
Summary: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).

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