FIELD COLU GEOLOGY, PL. XXXIX. 











160° | 40° 160° 1802 
80 . ay 80 O 
60° 60° 
40° 40° 
20 20° 
0° 0° 
20° 20° 
40° 40° 
60° 60° 



160° 146° 160° 180 2 
