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Ekman Dredge

Description

Ekman dredges (Ekman, 1911) are essentially metal cubes with side length ~15cm, and a pair of spring-gate doors that are held open during deployment and closed during recovery. The box is lowered into the sediment via rope. The operator slides a messenger down the rope, which closes the doors, and the sample is returned to the surface. Recovered sediments are assumed to be mixed.

Images

The Ekman Dredge

Ekman Dredge.