Articles | Volume 12, issue 12
Biogeosciences, 12, 3753–3768, 2015
https://doi.org/10.5194/bg-12-3753-2015
Biogeosciences, 12, 3753–3768, 2015
https://doi.org/10.5194/bg-12-3753-2015

Research article 18 Jun 2015

Research article | 18 Jun 2015

GDGT distributions on the East Siberian Arctic Shelf: implications for organic carbon export, burial and degradation

R. B. Sparkes et al.

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Short summary
Siberian permafrost contains large amounts of organic carbon that may be released by climate warming. We collected and analysed samples from the East Siberian Sea, using GDGT biomarkers to trace the sourcing and deposition of organic carbon across the shelf. We show that branched GDGTs may be used to trace river erosion. Results from modelling show that organic carbon on the shelf is a complex process involving river-derived and coastal-derived material as well as marine carbon production.
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