U. S. Geological Survey Open-File Report 01-154

SEA-FLOOR PHOTOGRAPHY FROM THE CONTINENTAL MARGIN PROGRAM:

A Pictorial Survey of Benthic Character and Habitats
Along the U.S. East Coast

Photographic Gallery of personnel, facilities and equipment from the Continental Margin Program

Dr. John S. Schlee, USGS, prepares to drop a sample of sand (adhered to the upended disc at center) into a long plexiglass tube in order to make a size analysis of the sand. The weight of the particles and the time it takes them to fall down the tube is measured by a transducer and recorded as a "size curve" on tape. This work is part of a joint WHOI-USGS study on the Atlantic Continental Shelf and Slope.