4 00 3 00 2 50 2 00 I 50 



Millimeters 



100 .80 .60 50 .40 .30 .25 20 



10 .OS .062 



1 1 



1 1 

 SOLID LINE 



1 1 



1 1 



1 1 



1 



1 



/ 

 / 

 / 



1 1 



X 





5 % V. crs. s 

 39 7o crs. s. 

 . 38 7o m.s. 

 _ l47o f.s. 



4 7o v.f.s. 











/ 



/ 

















/ 



/ 

 / 

















/ J 

















/ 



/ 



/ 



DASHED LINE_ 



4 7o crs. s. 

 44 7o m. s. 

 52 7o f.s. 









/ 



/ 



/ 







:a CO 









/ 





/ 

 / 





1 



^ 







/ 



/ 

 / 







\ 



r 





/ 





/ 

 / 

 / 





- 









( 







/ 





/ 

 / 





4 











^ 





/ 



/ 







^ 













/ 





/ 

 1 











SOUTH OF 26° 20' 



1 1 



/ 





1 



1 







Ca luj 











/ 





/ 

 / 

 / 



/ 



t 



f 



NOF 



?TH 



F 26* 



20' 





- 



99 



98 

 97 



95 



90 

 85 

 80 



70^ 



(A 



60 5 



o 



50 1: 



40 S 



30 "^ 



20 

 15 



10 



-2.0 -1.5 -1.0 -0.5 



0.5 1.0 1.5 2.0 2.5 3.0 3.5 



Phi Units- ^ 



4.0 



I GRANULE JVERY cOiRSE SANP| COARSE SAND j MEDIUM SAND j FINE SAND jvERY FINE SANDJ 



Figure 5. Average size distribution of shelf sediments. Note the 

 difference in grain size and the concomittant difference 

 in carbonate (shell) content. 



10 



