Plough Tracks in the Deep Sea (IMAGE) Max Planck Institute for Marine Microbiology Caption The plough tracks in which the manganese nodules were ploughed under and the sediments disturbed are still clearly visible after 26 years. Credit ROV-Team/GEOMAR Usage Restrictions Only to be used in the context of this publication and citing the proper copyright. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.