... In the absence of pore water movement the dominant transport mechanism for migrating radionuclides in seabed sediments is diffusion Apparent diffusion coefficients measured in sediments are sensitive to chemical (e g, redox) and physical (e g, porosity) conditions. The influence of pressure...

... the faults which have been revealed dunng seismic sumeylng of some areas of the abyssal seabed (2) Expenments to measure the rate of dlffision of sodium iodide through intact sediment samples under the effective stress encountered 30 m below the seabed and to compare these wthrates of diffusion through...