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Nepheloid Layer (Biogeochemical Feature)

Component: Biogeochemical Feature

Unique Identifier: 1341

Biogeochemical Feature Nepheloid Layer

Definition Layer of water that contains a high concentration of silt and sediment—usually at the benthic-water column interface. This layer can be nearly a fluid mud. In the deep oceans, the layer can be hundreds of meters thick; in shallower waters with less fine sediments, it can be much thinner (only a few centimeters in places) or absent. Thickness is determined by substrate composition and current shear.