Articles | Volume 17, issue 6
Biogeosciences, 17, 1463–1493, 2020

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

Biogeosciences, 17, 1463–1493, 2020

Research article 23 Mar 2020

Research article | 23 Mar 2020

Scars in the abyss: reconstructing sequence, location and temporal change of the 78 plough tracks of the 1989 DISCOL deep-sea disturbance experiment in the Peru Basin

Florian Gausepohl et al.

Data sets

Geo-referenced acoustic and optical data sets from the DISCOL area in the Peru-basin acquired during RV SONNE cruise SO242/1 Florian Gausepohl, Anne Hennke, Timm Schoening, Kevin Köser, and Jens Greinert

Seafloor images and raw context data along AUV tracks during SONNE cruises SO239 and SO242/1. GEOMAR – Helmholtz Centre for Ocean Research Kiel Jens Greinert, Timm Schoening, Kevin Köser, and Marcel Rothenbeck

Short summary
In the course of former German environmental impact studies associated with manganese-nodule mining, the DISCOL experiment was conducted in 1989 in the Peru Basin. The disturbance tracks created by a plough harrow in the area are still apparent and could be located by high-resolution mapping techniques. The analysis presented in this study reveals the age sequence and the temporal change of the tracks which facilitates more detailed sample interpretations within the area.
Final-revised paper