756 



HEEZEN 



[chap. 27 



30° 



20° 

 — I — 



10" 



> > - 



s ? " 



30" 



20° 



1 



50° 



10° 



20° 



30° 



10° 



Fig. 11. Distribution of sediment in cores containing sand and silt layers. The top of the 

 column is approximately the location of the core station. A black zone denotes sand 

 and/or silt. A line denotes a thin sand or silt layer. An open zone denotes lutite. (After 

 Ericson, Ewing, WoUin and Heezen, 1961.) 



