Articles | Volume 17, issue 10
Research article
26 May 2020
Research article |  | 26 May 2020

Assessing the temporal scale of deep-sea mining impacts on sediment biogeochemistry

Laura Haffert, Matthias Haeckel, Henko de Stigter, and Felix Janssen

Data sets

Geochemistry of sediment cores during SONNE cruises SO242/1 and SO242/2 at the DISCOL area, Peru Basin Matthias Haeckel

Radionuclide data (total 210Pb) measured on sediment multi cores during SONNE cruise SO242/1 at the DISCOL area, Peru Basin Henko de Stigter

Radionuclide 210Pb and 226Ra data measured on sediment cores during SONNE cruise SO242/1 Henko de Stigter

Short summary
Deep-sea mining for polymetallic nodules is expected to have severe environmental impacts. Through prognostic modelling, this study aims to provide a holistic assessment of the biogeochemical recovery after a disturbance event. It was found that the recovery strongly depends on the impact type; e.g. complete removal of the surface sediment reduces seafloor nutrient fluxes over centuries.
Final-revised paper