331 



Figure 7. Research Approach 



PROPERTIES 



HYPOTHESIS 



MATHEMATICAL 

 MODEL 



PREDICTION 



IMPROVE 



FIELD 

 VERI FICATION 



YES 



^ 



USE 



MODEL 



Figure 8. Plutonium Concentration in the Sediment at 100,000 

 Years 



^ 



^^ 



>!=:': 



69-848 0-81-22 



