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

Gausepohl, Florian; Hennke, Anne; Schoening, Timm; Köser, Kevin; Greinert, Jens

doi:https://doi.org/10.5194/bg-17-1463-2020

Articles | Volume 17, issue 6

https://doi.org/10.5194/bg-17-1463-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Assessing environmental impacts of deep-sea mining...

https://doi.org/10.5194/bg-17-1463-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 6

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, Anne Hennke, Timm Schoening, Kevin Köser, and Jens Greinert

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 https://doi.org/10.1594/PANGAEA.905616

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 https://doi.org/10.1594/PANGAEA.882349

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.