TOTAL MAGNETIC INTENSITY IN GAMMAS 



DEPTH IN FATHOMS 



TOTAL MAGNETIC INTENSITY IN GAMMAS 



DEPTH IN FATHOMS 



a: 



I- 



UJ 



>- 

 I 

 H 

 < 



m 



Q 

 Z 

 < 



u 



I- 



UJ 



z 

 < 



I 



cvi 



25 



