Iceberg scours on the seafloor

Illustration shows big grooves and other features on the seafloor.

Detailed Description

This 3D perspective view of seafloor bathymetry, from multibeam sonar data collected offshore of South Carolina, show numerous grooves carved by drifting icebergs. As iceberg keels plow into the seafloor, they dig deep grooves that push aside boulders and piles of sand and mud along their tracks. Sediment cores from nearby buried iceberg scours were used to determine when these icebergs travelled south along the coast.

Details

Image Dimensions: 1455 x 2048

Location Taken: US

Credits

Jenna Hill, U.S. Geological Survey, Pacific Coastal and Marine Science Center

Source:

Timing of iceberg scours and massive ice-rafting events in the subtropical North Atlantic
USGS News

Scientific article from Nature Communications
Condron, A., and Hill, J.C., 2021, Timing of iceberg scours and massive ice-rafting events in the subtropical North Atlantic: Nature Communications, v. 12, Article Number 3668, doi: 10.1038/s41467-021-23924-0