500 



FT. 



600 



I hour 



— b — nn y»« — fi«/i f < ■' 



V ^V*Nwv.^^^ v A^ v ^^ v ^^ /v ^^ 



6 miles 



500 



FT. 



600 





Y Z 



Figure 7. Isotherm data from leg three of cruise 2 (450 and 650 feet). 



17 



