SETTLING VELOCITIES IN MICRONS PER SECOND 

 i g 



DIAMETERS IN MICR0N5 - « o 



COARSE I MEDIUM I FINE IvERYFINEI COARSE I MEDIUM I FINE IVERYFtNEl COARSE I MEDIUM I FPNE IvERYFINeI 



SAND SAND SAND | SAND | SILT | SILT | SILT | SILT | CLAY | CLAY | CLAY | CLAY ] 



SETTLING VELOCITIES IN MICRONS PER SECOND 



DIAMETERS IN MICRONS 



COARSE 

 SAND 



vIEDIUM 

 SAND 



FINE 

 SANO 



VERY FINE COARSE MEDIUM 

 SAND SILT SILT 



FINE 

 SILT 



VERY FINE COARSE 

 SILT CLAY 



MEDIUM 

 CLAY 



FINE 

 CLAY 



VERY FINE 

 CLAY I 



FIGS. 13-14 — SETTLING VELOCITIES IN MICRONS PER SECOND AT 20*0, SAMPLES 69 AND 70 



140 



