The release and migration of activation products from corrosion-resistant metal specimens in marine sediments
MetadataShow full item record
An investigation of the release of Ni-63, Co-60, and Fe-55 from Inconel 600 and 347SS stainless steel specimens implanted in marine sediment for one year is described. Radiochemical analysis of the sediment from overcores of the metal specimens permits estimation of integrated activities, release rates, and diffusion coefficients of the three radionuclides. Disturbance of the sediment upon recovery limits the values to order of magnitude estimates. The redox chemistry of the sediments is characterized by measurement of several naturally occurring oxidizing agents and is correlated with the behavior of the radionuclides. Details of the deployment, sampling and analytical procedures are also given.
Showing items related by title, author, creator and subject.
Morford, Jennifer L.; Kalnejais, Linda H.; Helman, Peter; Yen, Gloria; Reinard, Melissa (2008-02-08)Although there have been many surface water and water column silver (Ag) analyses in the ocean, the absence of high resolution pore water and solid phase Ag profiles has hampered our understanding of its oceanic geochemical ...
The determination of rare earth elements in marine sediments by ion-exchange separation and ICP emission spectrometry Schneider, David L.; Bankston, Donald C. (Woods Hole Oceanographic Institution, 1987-12)A method has been developed to measure rare-earth elements (REE) in gram-sized marine sediment samples. A strong acid digestion technique followed by ion-exchange chromatography is used to solubilize, separate, and purify ...
Ohnemus, Daniel C.; Lam, Phoebe J. (Elsevier, 2014-12-06)In this paper, we present, describe, and model the first size-fractionated (0.8–51 µm; >51 µm) water-column particulate trace metal results from the US GEOTRACES North Atlantic Zonal Transect in situ pumping survey, with ...