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

Sparkes, R. B.; Doğrul Selver, A.; Bischoff, J.; Talbot, H. M.; Gustafsson, Ö.; Semiletov, I. P.; Dudarev, O. V.; van Dongen, B. E.

doi:https://doi.org/10.5194/bg-12-3753-2015

Articles | Volume 12, issue 12

https://doi.org/10.5194/bg-12-3753-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-12-3753-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 12, issue 12

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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Preprint (discussion started on 12 Jan 2015)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC C32: 'Review of Sparkes et al', Anonymous Referee #1, 27 Jan 2015
- AC C1355: 'Response to Review #1', R. Sparkes, 17 Apr 2015
RC C581: 'Review', Anonymous Referee #2, 10 Mar 2015
- AC C1353: 'Response to Review #2', R. Sparkes, 17 Apr 2015

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

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.