:ii6 



HEEZEN AND LAUGHTON 



[chap. 14 



42° 40° 38° 36° 34° 



North latitude 



32" 



30° 



Fio:. 4. North-south profile of the Sohm Abyssal Plain along long. 54°, from 32° to 42°N. 

 (After Heezen, Ewing and Ericson, 1955.) 



2600 



3000 



2600 



3000 

 VERTICAL EXAGGERATION 4001 



so 56 



100 200 300 400 500 600 



DISTANCE IN NAUTICAL MILES 

 ECHO SOUNDINGS 800 FM /SEC 



Fig. 5. Profiles across the Sohm Abyssal Plain. (After Heezen et al., 1955.) 



