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

Related authors

Carbonaceous material export from Siberian permafrost tracked across the Arctic Shelf using Raman spectroscopy
Robert B. Sparkes, Melissa Maher, Jerome Blewett, Ayça Doğrul Selver, Örjan Gustafsson, Igor P. Semiletov, and Bart E. van Dongen
The Cryosphere, 12, 3293–3309, https://doi.org/10.5194/tc-12-3293-2018,https://doi.org/10.5194/tc-12-3293-2018, 2018
Short summary
Source, transport and fate of soil organic matter inferred from microbial biomarker lipids on the East Siberian Arctic Shelf
Juliane Bischoff, Robert B. Sparkes, Ayça Doğrul Selver, Robert G. M. Spencer, Örjan Gustafsson, Igor P. Semiletov, Oleg V. Dudarev, Dirk Wagner, Elizaveta Rivkina, Bart E. van Dongen, and Helen M. Talbot
Biogeosciences, 13, 4899–4914, https://doi.org/10.5194/bg-13-4899-2016,https://doi.org/10.5194/bg-13-4899-2016, 2016
Short summary
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
Biogeosciences, 12, 3753–3768, https://doi.org/10.5194/bg-12-3753-2015,https://doi.org/10.5194/bg-12-3753-2015, 2015
Short summary
Preservation of terrestrial organic carbon in marine sediments offshore Taiwan: mountain building and atmospheric carbon dioxide sequestration
S.-J. Kao, R. G. Hilton, K. Selvaraj, M. Dai, F. Zehetner, J.-C. Huang, S.-C. Hsu, R. Sparkes, J. T. Liu, T.-Y. Lee, J.-Y. T. Yang, A. Galy, X. Xu, and N. Hovius
Earth Surf. Dynam., 2, 127–139, https://doi.org/10.5194/esurf-2-127-2014,https://doi.org/10.5194/esurf-2-127-2014, 2014

Related subject area

Biogeochemistry/Biology
Review article: A systematic review of terrestrial dissolved organic carbon in northern permafrost
Liam Heffernan, Dolly N. Kothawala, and Lars J. Tranvik
The Cryosphere Discuss., https://doi.org/10.5194/tc-2023-152,https://doi.org/10.5194/tc-2023-152, 2023
Revised manuscript accepted for TC
Short summary
Environmental controls on observed spatial variability of soil pore water geochemistry in small headwater catchments underlain with permafrost
Nathan Alec Conroy, Jeffrey M. Heikoop, Emma Lathrop, Dea Musa, Brent D. Newman, Chonggang Xu, Rachael E. McCaully, Carli A. Arendt, Verity G. Salmon, Amy Breen, Vladimir Romanovsky, Katrina E. Bennett, Cathy J. Wilson, and Stan D. Wullschleger
The Cryosphere, 17, 3987–4006, https://doi.org/10.5194/tc-17-3987-2023,https://doi.org/10.5194/tc-17-3987-2023, 2023
Short summary
Responses of dissolved organic carbon to freeze–thaw cycles associated with the changes in microbial activity and soil structure
You Jin Kim, Jinhyun Kim, and Ji Young Jung
The Cryosphere, 17, 3101–3114, https://doi.org/10.5194/tc-17-3101-2023,https://doi.org/10.5194/tc-17-3101-2023, 2023
Short summary
Biogeochemical evolution of ponded meltwater in a High Arctic subglacial tunnel
Ashley J. Dubnick, Rachel L. Spietz, Brad D. Danielson, Mark L. Skidmore, Eric S. Boyd, Dave Burgess, Charvanaa Dhoonmoon, and Martin Sharp
The Cryosphere, 17, 2993–3012, https://doi.org/10.5194/tc-17-2993-2023,https://doi.org/10.5194/tc-17-2993-2023, 2023
Short summary
Variation in bacterial composition, diversity, and activity across different subglacial basal ice types
Shawn M. Doyle and Brent C. Christner
The Cryosphere, 16, 4033–4051, https://doi.org/10.5194/tc-16-4033-2022,https://doi.org/10.5194/tc-16-4033-2022, 2022
Short summary

Cited articles

Alling, V., Sanchez-Garcia, L., Porcelli, D., Pugach, S., Vonk, J. E., van Dongen, B., M orth, C.-M., Anderson, L. G., Sokolov, A., Andersson, P., Humborg, C., Semiletov, I., and Gustafsson, Ö.: Nonconservative behavior of dissolved organic carbon across the Laptev and East Siberian seas, Global Biogeochem. Cy., 24, GB4033, https://doi.org/10.1029/2010GB003834, 2010.
Anderson, L. G., Jutterström, S., Hjalmarsson, S., Wåhlström, I., and Semiletov, I. P.: Out-gassing of CO2 from Siberian Shelf seas by terrestrial organic matter decomposition, Geophys. Res. Lett., 36, L20601, https://doi.org/10.1029/2009GL040046, 2009.
Barden, H. E., Wogelius, R. A., Li, D., Manning, P. L., Edwards, N. P., and van Dongen, B. E.: Morphological and Geochemical Evidence of Eumelanin Preservation in the Feathers of the Early Cretaceous Bird, Gansus yumenensis, PLoS ONE, 6, 1–9, https://doi.org/10.1371/journal.pone.0025494, 2011.
Belicka, L. L. and Harvey, H. R.: The sequestration of terrestrial organic carbon in Arctic Ocean sediments: A comparison of methods and implications for regional carbon budgets, Geochim. Cosmochim. Ac., 73, 6231–6248, https://doi.org/10.1016/j.gca.2009.07.020, 2009.
Bischoff, J., Sparkes, R. B., Dogrul Selver, A., Spencer, R. G. M., Gustafsson, Ö., Semiletov, I. P., Dudarev, O. V., Wagner, D., Rivkina, E., van Dongen, B. E., and Talbot, H. M.: Source, transport and fate of soil organic matter inferred from microbial biomarker lipids on the East Siberian Arctic Shelf, Biogeosciences, 13, 4899–4914, https://doi.org/10.5194/bg-13-4899-2016, 2016.
Download
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.