Articles | Volume 17, issue 4
Biogeosciences, 17, 1113–1131, 2020
https://doi.org/10.5194/bg-17-1113-2020

Special issue: Assessing environmental impacts of deep-sea mining...

Biogeosciences, 17, 1113–1131, 2020
https://doi.org/10.5194/bg-17-1113-2020

Research article 28 Feb 2020

Research article | 28 Feb 2020

Impact of small-scale disturbances on geochemical conditions, biogeochemical processes and element fluxes in surface sediments of the eastern Clarion–Clipperton Zone, Pacific Ocean

Jessica B. Volz et al.

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (05 Dec 2019) by Jack Middelburg
AR by Jessica Volz on behalf of the Authors (18 Dec 2019)  Author's response    Manuscript
ED: Publish subject to technical corrections (14 Jan 2020) by Jack Middelburg
AR by Jessica Volz on behalf of the Authors (22 Jan 2020)  Author's response    Manuscript
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Short summary
Potential future deep-sea mining of polymetallic nodules at the seafloor is expected to severely harm the marine environment. However, the consequences on deep-sea ecosystems are still poorly understood. This study on surface sediments from man-made disturbance tracks in the Pacific Ocean shows that due to the removal of the uppermost sediment layer and thereby the loss of organic matter, the geochemical system in the sediments is disturbed for millennia before reaching a new equilibrium.
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