220 - 



clear ice 

 ^IMMHHI between 



bands from LL 



to 38 cm 



«> 240 



5 8 k 



60 



80 



plankton zone 



- ^ 



History: Ice grew over open water of 



McMurdo Sound and was subjected 

 to higti winds and rough water. 

 Snow cover was late and was less 

 than 10 inches. 



kikiMmaai 



clear ice 

 between 

 bands from 

 105 to 147 cm 



Figure 4. Stratigraphy of annual sea ice 

 at station 1, December 1965. 



