Fig. 2. 



3-JjLlSJ 



m 



s I 







Iffl 



^ ! 



to o *j 



_l 

 _l __ 



O 



cr 



O o 



O ? 



■Si 



U 5 



Fig. 2. Diagrammatic structure section from Calama, Chile, to a point 

 on the Argentine Pampas 600 kilometers away and bearing S, 60° W. The 

 profile is compiled from barometric observations. 



