SETTLING VELOCITIES IN MICRONS PER SECOND 



DIAMETERS IN MICRONS 



COARSe 

 SAND 



MEDIUM 

 5AN0 



FINE 

 SAND 



VERY FINE COARSE 

 SAND SILT 



vIEDIUM 

 SILT 



FINE VERY FINE COARSE 



SILT SILT CLAY 



MEDIUM 

 CLAY 



FINE 

 CLAY 



VERY FINE 

 CLAY 



SETTLING VELOCITIES IN MICRONS PER SECOND 



DIAMETERS IN MICRONS 



FINE 

 5AN0 



VERY FINE COARSE 

 SAND SILT 



MEDIUM 

 SILT 



FINE 



SILT 



VERY FINE COARSE 

 SILT CLAY 



MEDIUM 

 CLAY 



FINE 

 CLAY 



VERY FINE 



COARSE MEDIUM , , , , ... 



SAND I SAND | SAND | SAND | SILT | SILT | SILT | SILT ] CLAY | CLAY ] CLAY | CLAV 



FIGS. 17-18— SETTLING VFI OCITIES IN MICRONS PER SECOND AT 20 °C , SAMPLES 74 AND 77 



142 



