Or Op 



— ««« >■ ^ 



mui 



cloudy ice, 

 diffuse boundaries 



240 



r^ 



^fjp 



--— plankton zone 



2 - 



60 - 



80 I- 





S 3 I- e 



« 100 t- 



A 120 ^ 



140 ^- 



160 - 



180 



200 - 



UfU 



History: Ice grew in area of quiet 



water between tabular icebergs 

 and the Ross Ice Shelf. No 

 snow cover during growth. 



clear ice with 

 few brine features 

 from 110 to 240 cm 



Figure 5. Strat-fgraphy of annual sea Ice 

 at- station 4, December 1965. 



10 



