1900 1 r 



1860- 



1820 



1780- 



1740 



1700 



1660 



1620 



1580 



1540 



1500 





 M1000 



-I 1 1 1 1 1 1 1 1 1 1 1 1 I I r 



* < 





• • • 



• •• 



I'll I I : I I I i L. 



1 23456789 10 



500 250 125 62.5 31.3 15.6 7.8 3.9 2 1 



MEAN GRAIN DIAMETER 



Figure 2. Mean diameter of mineral grains versus sound velocity, continental terrace 

 (shelf and slope). 



30 



