80 |- 

 75 

 70 

 65 



60 - 

 55 \- 

 50 

 45 



40 h 

 35^ 

 30 

 25 - 

 20 h 

 15 



10 - 

 5 - 



MATERIAL FROM TEST SECTION 



ORIGINALLY-PLACED MATERIAL 



-10 12 3 



GRAIN SIZE In PHI 

 Figure 31. Grain size distributions 



Sand Flux (g/cm2/min) 



20 30 40 



(V-V*) (cm/s) 



50 



Basin ^— 95% Conf (-) — — 95% Conf (♦) * New Sand 



Figure 32. Basin flux for 2.5-min run with "new sand' 



67 



