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Seismic reflection equipment off stern of R/V Langseth

By Pacific Coastal and Marine Science Center
Looking off the stern of a large ship to the horizon with long ropes and hoses and other floating instruments being towed.
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Detailed Description

Four tan cables, each 6 kilometers long, trail behind R/V Marcus G. Langseth. These cables record seismic sound waves that travel down into the Earth and reflect back from layers beneath the seafloor. The green cables provide the sound.

Sources/Usage

Public Domain.