Articles | Volume 12, issue 12
Biogeosciences, 12, 3753–3768, 2015
Biogeosciences, 12, 3753–3768, 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.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
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
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.
Final-revised paper