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(2020) Transformation of Organic Matter in Arctic Ocean Sediments Across the Redox Interface

Stevenson M, Faust J, Luiza A, Freitas F, Neil G, Tait K, Henley S, Peter L, Papadaki S, März C, Abbott G, Hilton RG & Hendry KR


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10c: Room 2, Saturday 27th June 07:21 - 07:24

Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.

Submitted by Tess Hutchinson on Saturday 27th June 04:03
Hi Mark, Thanks for your presentation it was very interesting, especially the links between the modelling and microbes at B15. You kind of touched on it at the end but I was wondering if this was attempted at the other sites yet they did not reveal such concordant results or no microbial work was done at other sites? Thanks, Tess

Submitted by Mark Stevenson on Saturday 27th June 06:33
Thanks for your question. These results are currently being worked up but we tend to find an overall deeper redox transition in the sediments further north, although the sulfate reducers can drop off with methanogens becoming more important in some cases. The overall deeper transition further north is consistent with carbon burial results which suggest higher carbon accumulation or preservation in the most northerly stations.

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