Changes in the Concentration of Dissolved Silica in Stored Sediments as a Function of Time: A Theoretical Model.

摘要

A diffusion-decay process in sediment cores is analyzed in order to determine what time delays can be tolerated between coring and squeezing. The cases considered suggest the advisability of immediate sectioning and pore water removal; relative changes of 15-40% of surface dissolved silica concentrations are predicted for periods of 3 days to 3 weeks after coring. (Author)