Articles | Volume 10, issue 5
https://doi.org/10.5194/tc-10-2485-2016
https://doi.org/10.5194/tc-10-2485-2016
Research article
 | 
24 Oct 2016
Research article |  | 24 Oct 2016

Macromolecular composition of terrestrial and marine organic matter in sediments across the East Siberian Arctic Shelf

Robert B. Sparkes, Ayça Doğrul Selver, Örjan Gustafsson, Igor P. Semiletov, Negar Haghipour, Lukas Wacker, Timothy I. Eglinton, Helen M. Talbot, and Bart E. van Dongen

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Short summary
The permafrost in eastern Siberia contains large amounts of carbon frozen in soils and sediments. Continuing global warming is thawing the permafrost and releasing carbon to the Arctic Ocean. We used pyrolysis-GCMS, a chemical fingerprinting technique, to study the types of carbon being deposited on the continental shelf. We found large amounts of permafrost-sourced carbon being deposited up to 200 km offshore.