

50 



/\ S "" T 



1— 

 u 



a. 



40 



/ \ 



to 

 Z 



o 



1— 

 to 



30 



7 \ 





20 



■ / \ 





10 



J \, 











TOTAL SAMPLE WEIGHT (PCT 



Figure 12. Percentage frequency of the silt fraction at all stations. 



33 



