Articles | Volume 12, issue 12
https://doi.org/10.5194/bg-12-3753-2015
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, A. Doğrul Selver, J. Bischoff, H. M. Talbot, Ö. Gustafsson, I. P. Semiletov, O. V. Dudarev, and B. E. van Dongen

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AR by R. Sparkes on behalf of the Authors (17 Apr 2015)  Author's response   Manuscript 
ED: Publish subject to minor revisions (Editor review) (21 May 2015) by Silvio Pantoja
AR by R. Sparkes on behalf of the Authors (22 May 2015)  Author's response 
ED: Publish as is (27 May 2015) by Silvio Pantoja
AR by R. Sparkes on behalf of the Authors (28 May 2015)
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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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